I'm trying to put the word - autonóma - in a key on the web.config file.
When I try to retrieve the key I get the wrror "There is an invalid character in the given encoding". this is because of the character ' ó '.
How can I solve this.
ThanksCan you show the part of your web.config file and the part where you access the data.
I didn't have that problem when I put your word in my web.config.
This code crashes. It generate this error:
Value cannot be null.
Parameter name: type
I've created some custom web.config settings and this crash is related to
accessing theme custom settings. This code is where the crash occur:
_instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
This code is trying to do is to create an instance of the DAL provider,
************* custom web.config settings: **********************
<configSections>
<section name="msg" type="min.test.ConfigSection, __code"/>
</configSections>
<msg>
<messages providerType="min.test.DAL.SqlServer2005"/>
</msg>
********* In this code the crash occur *********
/* This code is from the DAL class, this code is trying to create an
instance of the DAL set in web.config - min.test.DAL.SqlServer2005
static public DAL Instance
{
get
{
if (_instance == null)
_instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
<-- code crashes here
return _instance;
}
}
******** definition of the custom settings in web.config
**********************
using System;
using System.Collections.Generic;
using System.Configuration;
namespace min.test
{
public class ConfigSection : ConfigurationSection
{
[ConfigurationProperty("messages", IsRequired = true)]
public MsgElement msgElement
{
get { return (MsgElement)base["messages"]; }
}
}
public class MsgElement : ConfigurationElement
{
[ConfigurationProperty("providerType", DefaultValue =
"min.test.DAL.SqlServer2005")]
public string ProviderType
{
get { return (string)base["providerType"]; }
set { base["providerType"] = value; }
}
}
}
Any suggestions??
JeffWell,
The exception message doesn't lie - it's telling you that you've got a null
value, and it cannot accept it and continue.
One way to get at this is to "take apart" your compound statement so that it
will becom easier to set breakpoints and examine values, e.g.:
instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
could be:
Type t = Type.GetType(min.test.Config.Settings.msgElement.P roviderType);
// check to see if t above is null.
instance = (DAL)Activator.CreateInstance(t);
Peter
--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net
"Jeff" wrote:
Quote:
Originally Posted by
ASP.NET 2.0
>
This code crashes. It generate this error:
Value cannot be null.
Parameter name: type
>
I've created some custom web.config settings and this crash is related to
accessing theme custom settings. This code is where the crash occur:
_instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
This code is trying to do is to create an instance of the DAL provider,
>
************* custom web.config settings: **********************
<configSections>
<section name="msg" type="min.test.ConfigSection, __code"/>
</configSections>
<msg>
<messages providerType="min.test.DAL.SqlServer2005"/>
</msg>
>
********* In this code the crash occur *********
/* This code is from the DAL class, this code is trying to create an
instance of the DAL set in web.config - min.test.DAL.SqlServer2005
static public DAL Instance
{
get
{
if (_instance == null)
_instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
<-- code crashes here
return _instance;
}
}
>
******** definition of the custom settings in web.config
**********************
using System;
using System.Collections.Generic;
using System.Configuration;
>
namespace min.test
{
public class ConfigSection : ConfigurationSection
{
[ConfigurationProperty("messages", IsRequired = true)]
public MsgElement msgElement
{
get { return (MsgElement)base["messages"]; }
}
>
}
>
public class MsgElement : ConfigurationElement
{
[ConfigurationProperty("providerType", DefaultValue =
"min.test.DAL.SqlServer2005")]
public string ProviderType
{
get { return (string)base["providerType"]; }
set { base["providerType"] = value; }
}
}
>
}
>
Any suggestions??
>
Jeff
>
>
>
Type t = Type.GetType(min.test.Config.Settings.msgElement.P roviderType);
t gets a NULL value here. I've looked at the web.config settings and the
code that creates the custom web.config settings and I cannot see what I'm
doing wrong here... or maybe I'm becoming blind to my own programming
errors. Do you see why it get NULL value??
Jeff
"Peter Bromberg [C# MVP]" <pbromberg@.yahoo.yabbadabbadoo.comwrote in
message news:ACE60486-118C-4BB2-A1C1-EB2416FB1CED@.microsoft.com...
Quote:
Originally Posted by
Well,
The exception message doesn't lie - it's telling you that you've got a
null
value, and it cannot accept it and continue.
>
One way to get at this is to "take apart" your compound statement so that
it
will becom easier to set breakpoints and examine values, e.g.:
>
instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
>
could be:
>
Type t = Type.GetType(min.test.Config.Settings.msgElement.P roviderType);
// check to see if t above is null.
>
instance = (DAL)Activator.CreateInstance(t);
>
Peter
--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net
>
>
>
>
"Jeff" wrote:
>
Quote:
Originally Posted by
>ASP.NET 2.0
>>
>This code crashes. It generate this error:
>Value cannot be null.
>Parameter name: type
>>
>I've created some custom web.config settings and this crash is related to
>accessing theme custom settings. This code is where the crash occur:
>_instance =
>(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
>This code is trying to do is to create an instance of the DAL provider,
>>
>************* custom web.config settings: **********************
><configSections>
> <section name="msg" type="min.test.ConfigSection, __code"/>
></configSections>
><msg>
> <messages providerType="min.test.DAL.SqlServer2005"/>
></msg>
>>
>********* In this code the crash occur *********
>/* This code is from the DAL class, this code is trying to create an
>instance of the DAL set in web.config - min.test.DAL.SqlServer2005
>static public DAL Instance
>{
> get
> {
> if (_instance == null)
> _instance =
>(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
><-- code crashes here
> return _instance;
> }
>}
>>
>******** definition of the custom settings in web.config
>**********************
>using System;
>using System.Collections.Generic;
>using System.Configuration;
>>
>namespace min.test
>{
> public class ConfigSection : ConfigurationSection
> {
> [ConfigurationProperty("messages", IsRequired = true)]
> public MsgElement msgElement
> {
> get { return (MsgElement)base["messages"]; }
> }
>>
> }
>>
> public class MsgElement : ConfigurationElement
> {
> [ConfigurationProperty("providerType", DefaultValue =
>"min.test.DAL.SqlServer2005")]
> public string ProviderType
> {
> get { return (string)base["providerType"]; }
> set { base["providerType"] = value; }
> }
> }
>>
>}
>>
>Any suggestions??
>>
>Jeff
>>
>>
>>
If the assembly name is specified in the typeName string, Type.GetType()
will search inside this assembly only; otherwise, it tries to find one in the
caller assembly and then the system assembly (mscorlib.dll). Anything after
',' in the typeName string is treated as assembly name. To make it work,you
need to specify "YourAssembly.dll" in typeName. In contrast,
Type.GetType("System.Int32") can return type System.Int32 without mentioning
"mscorlib.dll".
Type.AssemblyQualifiedName is the right way to tell what kind of typeName
you should provide.
typeof(System.Data.SqlClient.SqlException).Assembl yQualifiedName equals:
"System.Data.SqlClient.SqlException, System.Data, Version=2.0.0.0,
Culture=neutral, PublicKeyToken=b77a5c561934e089". Type.GetType with this
long string will succeed in .NET 2.0.
In .NET, namespace and the associated assembly name are not necessarily
related. Type "System.Data.SqlClient.SqlException" is not associated with
"System.Data.SqlClient.dll" (which does not exist).
-- Peter
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net
"Jeff" wrote:
Quote:
Originally Posted by
Thanks
>
Type t = Type.GetType(min.test.Config.Settings.msgElement.P roviderType);
t gets a NULL value here. I've looked at the web.config settings and the
code that creates the custom web.config settings and I cannot see what I'm
doing wrong here... or maybe I'm becoming blind to my own programming
errors. Do you see why it get NULL value??
>
Jeff
>
"Peter Bromberg [C# MVP]" <pbromberg@.yahoo.yabbadabbadoo.comwrote in
message news:ACE60486-118C-4BB2-A1C1-EB2416FB1CED@.microsoft.com...
Quote:
Originally Posted by
Well,
The exception message doesn't lie - it's telling you that you've got a
null
value, and it cannot accept it and continue.
One way to get at this is to "take apart" your compound statement so that
it
will becom easier to set breakpoints and examine values, e.g.:
instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
could be:
Type t = Type.GetType(min.test.Config.Settings.msgElement.P roviderType);
// check to see if t above is null.
instance = (DAL)Activator.CreateInstance(t);
Peter
--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net
"Jeff" wrote:
Quote:
Originally Posted by
ASP.NET 2.0
>
This code crashes. It generate this error:
Value cannot be null.
Parameter name: type
>
I've created some custom web.config settings and this crash is related to
accessing theme custom settings. This code is where the crash occur:
_instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
This code is trying to do is to create an instance of the DAL provider,
>
************* custom web.config settings: **********************
<configSections>
<section name="msg" type="min.test.ConfigSection, __code"/>
</configSections>
<msg>
<messages providerType="min.test.DAL.SqlServer2005"/>
</msg>
>
********* In this code the crash occur *********
/* This code is from the DAL class, this code is trying to create an
instance of the DAL set in web.config - min.test.DAL.SqlServer2005
static public DAL Instance
{
get
{
if (_instance == null)
_instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
<-- code crashes here
return _instance;
}
}
>
******** definition of the custom settings in web.config
**********************
using System;
using System.Collections.Generic;
using System.Configuration;
>
namespace min.test
{
public class ConfigSection : ConfigurationSection
{
[ConfigurationProperty("messages", IsRequired = true)]
public MsgElement msgElement
{
get { return (MsgElement)base["messages"]; }
}
>
}
>
public class MsgElement : ConfigurationElement
{
[ConfigurationProperty("providerType", DefaultValue =
"min.test.DAL.SqlServer2005")]
public string ProviderType
{
get { return (string)base["providerType"]; }
set { base["providerType"] = value; }
}
}
>
}
>
Any suggestions??
>
Jeff
>
>
>
In addition to Peter's reply, there's another way of obtaining the reference
in ASP.NET 2.0 dynamic compilation enviroment. Please use
System.Web.Compilation.BuildManager.GetType(min.te st.Config.Settings.msgElement.ProviderType, true);
instead.
Regards
--
Milosz
"Peter Bromberg [C# MVP]" wrote:
Quote:
Originally Posted by
Type.GetType gives you the ability to get a type back from a string. You pass
a known, available type name string to it, and expect it return that type.
>
If the assembly name is specified in the typeName string, Type.GetType()
will search inside this assembly only; otherwise, it tries to find one in the
caller assembly and then the system assembly (mscorlib.dll). Anything after
',' in the typeName string is treated as assembly name. To make it work,you
need to specify "YourAssembly.dll" in typeName. In contrast,
Type.GetType("System.Int32") can return type System.Int32 without mentioning
"mscorlib.dll".
>
Type.AssemblyQualifiedName is the right way to tell what kind of typeName
you should provide.
typeof(System.Data.SqlClient.SqlException).Assembl yQualifiedName equals:
"System.Data.SqlClient.SqlException, System.Data, Version=2.0.0.0,
Culture=neutral, PublicKeyToken=b77a5c561934e089". Type.GetType with this
long string will succeed in .NET 2.0.
>
In .NET, namespace and the associated assembly name are not necessarily
related. Type "System.Data.SqlClient.SqlException" is not associated with
"System.Data.SqlClient.dll" (which does not exist).
>
-- Peter
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net
>
>
>
>
"Jeff" wrote:
>
Quote:
Originally Posted by
Thanks
Type t = Type.GetType(min.test.Config.Settings.msgElement.P roviderType);
t gets a NULL value here. I've looked at the web.config settings and the
code that creates the custom web.config settings and I cannot see what I'm
doing wrong here... or maybe I'm becoming blind to my own programming
errors. Do you see why it get NULL value??
Jeff
"Peter Bromberg [C# MVP]" <pbromberg@.yahoo.yabbadabbadoo.comwrote in
message news:ACE60486-118C-4BB2-A1C1-EB2416FB1CED@.microsoft.com...
Quote:
Originally Posted by
Well,
The exception message doesn't lie - it's telling you that you've got a
null
value, and it cannot accept it and continue.
>
One way to get at this is to "take apart" your compound statement so that
it
will becom easier to set breakpoints and examine values, e.g.:
>
instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
>
could be:
>
Type t = Type.GetType(min.test.Config.Settings.msgElement.P roviderType);
// check to see if t above is null.
>
instance = (DAL)Activator.CreateInstance(t);
>
Peter
--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net
>
>
>
>
"Jeff" wrote:
>
>ASP.NET 2.0
>>
>This code crashes. It generate this error:
>Value cannot be null.
>Parameter name: type
>>
>I've created some custom web.config settings and this crash is related to
>accessing theme custom settings. This code is where the crash occur:
>_instance =
>(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
>This code is trying to do is to create an instance of the DAL provider,
>>
>************* custom web.config settings: **********************
><configSections>
> <section name="msg" type="min.test.ConfigSection, __code"/>
></configSections>
><msg>
> <messages providerType="min.test.DAL.SqlServer2005"/>
></msg>
>>
>********* In this code the crash occur *********
>/* This code is from the DAL class, this code is trying to create an
>instance of the DAL set in web.config - min.test.DAL.SqlServer2005
>static public DAL Instance
>{
> get
> {
> if (_instance == null)
> _instance =
>(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
><-- code crashes here
> return _instance;
> }
>}
>>
>******** definition of the custom settings in web.config
>**********************
>using System;
>using System.Collections.Generic;
>using System.Configuration;
>>
>namespace min.test
>{
> public class ConfigSection : ConfigurationSection
> {
> [ConfigurationProperty("messages", IsRequired = true)]
> public MsgElement msgElement
> {
> get { return (MsgElement)base["messages"]; }
> }
>>
> }
>>
> public class MsgElement : ConfigurationElement
> {
> [ConfigurationProperty("providerType", DefaultValue =
>"min.test.DAL.SqlServer2005")]
> public string ProviderType
> {
> get { return (string)base["providerType"]; }
> set { base["providerType"] = value; }
> }
> }
>>
>}
>>
>Any suggestions??
>>
>Jeff
>>
>>
>>
This is a bit embarrassing. I tryed to create an instance of this class:
min.test.DAL.SqlServer2005, but this class don't exist in my project.
min.test.DAL.SqlServer2005.SqlServer2005 is the class I needed... I had
forgot that I had a namespace with the same name as the class...
anyway I changed the .SqlServer2005 namespace to SqlClient so now I'm
accessing min.test.DAL.SqlClient.SqlServer2005
once again, thank you
cheers
Jeff
"Milosz Skalecki [MCAD]" <mily242@.DONTLIKESPAMwp.plwrote in message
news:FB62B8F3-8DAE-4E81-917C-935316F2CFE8@.microsoft.com...
Quote:
Originally Posted by
Jeff,
>
In addition to Peter's reply, there's another way of obtaining the
reference
in ASP.NET 2.0 dynamic compilation enviroment. Please use
System.Web.Compilation.BuildManager.GetType(min.te st.Config.Settings.msgElement.ProviderType,
true);
instead.
>
Regards
--
Milosz
>
>
"Peter Bromberg [C# MVP]" wrote:
>
Quote:
Originally Posted by
>Type.GetType gives you the ability to get a type back from a string. You
>pass
>a known, available type name string to it, and expect it return that
>type.
>>
>If the assembly name is specified in the typeName string, Type.GetType()
>will search inside this assembly only; otherwise, it tries to find one in
>the
>caller assembly and then the system assembly (mscorlib.dll). Anything
>after
>',' in the typeName string is treated as assembly name. To make it
>work,you
>need to specify "YourAssembly.dll" in typeName. In contrast,
>Type.GetType("System.Int32") can return type System.Int32 without
>mentioning
>"mscorlib.dll".
>>
>Type.AssemblyQualifiedName is the right way to tell what kind of typeName
>you should provide.
>typeof(System.Data.SqlClient.SqlException).Assembl yQualifiedName equals:
>"System.Data.SqlClient.SqlException, System.Data, Version=2.0.0.0,
>Culture=neutral, PublicKeyToken=b77a5c561934e089". Type.GetType with this
>long string will succeed in .NET 2.0.
>>
>In .NET, namespace and the associated assembly name are not necessarily
>related. Type "System.Data.SqlClient.SqlException" is not associated with
>"System.Data.SqlClient.dll" (which does not exist).
>>
>-- Peter
>Site: http://www.eggheadcafe.com
>UnBlog: http://petesbloggerama.blogspot.com
>Short urls & more: http://ittyurl.net
>>
>>
>>
>>
>"Jeff" wrote:
>>
Quote:
Originally Posted by
Thanks
>
Type t =
Type.GetType(min.test.Config.Settings.msgElement.P roviderType);
t gets a NULL value here. I've looked at the web.config settings and
the
code that creates the custom web.config settings and I cannot see what
I'm
doing wrong here... or maybe I'm becoming blind to my own programming
errors. Do you see why it get NULL value??
>
Jeff
>
"Peter Bromberg [C# MVP]" <pbromberg@.yahoo.yabbadabbadoo.comwrote in
message news:ACE60486-118C-4BB2-A1C1-EB2416FB1CED@.microsoft.com...
Well,
The exception message doesn't lie - it's telling you that you've got
a
null
value, and it cannot accept it and continue.
>
One way to get at this is to "take apart" your compound statement so
that
it
will becom easier to set breakpoints and examine values, e.g.:
>
instance =
(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
>
could be:
>
Type t =
Type.GetType(min.test.Config.Settings.msgElement.P roviderType);
// check to see if t above is null.
>
instance = (DAL)Activator.CreateInstance(t);
>
Peter
--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net
>
>
>
>
"Jeff" wrote:
>
>ASP.NET 2.0
>>
>This code crashes. It generate this error:
>Value cannot be null.
>Parameter name: type
>>
>I've created some custom web.config settings and this crash is
>related to
>accessing theme custom settings. This code is where the crash occur:
>_instance =
>(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
>This code is trying to do is to create an instance of the DAL
>provider,
>>
>************* custom web.config settings: **********************
><configSections>
> <section name="msg" type="min.test.ConfigSection, __code"/>
></configSections>
><msg>
> <messages providerType="min.test.DAL.SqlServer2005"/>
></msg>
>>
>********* In this code the crash occur *********
>/* This code is from the DAL class, this code is trying to create an
>instance of the DAL set in web.config - min.test.DAL.SqlServer2005
>static public DAL Instance
>{
> get
> {
> if (_instance == null)
> _instance =
>(DAL)Activator.CreateInstance(Type.GetType(min.tes t.Config.Settings.msgElement.ProviderType));
><-- code crashes here
> return _instance;
> }
>}
>>
>******** definition of the custom settings in web.config
>**********************
>using System;
>using System.Collections.Generic;
>using System.Configuration;
>>
>namespace min.test
>{
> public class ConfigSection : ConfigurationSection
> {
> [ConfigurationProperty("messages", IsRequired = true)]
> public MsgElement msgElement
> {
> get { return (MsgElement)base["messages"]; }
> }
>>
> }
>>
> public class MsgElement : ConfigurationElement
> {
> [ConfigurationProperty("providerType", DefaultValue =
>"min.test.DAL.SqlServer2005")]
> public string ProviderType
> {
> get { return (string)base["providerType"]; }
> set { base["providerType"] = value; }
> }
> }
>>
>}
>>
>Any suggestions??
>>
>Jeff
>>
>>
>>
>
>
>
"chris" <anonymous@dotnet.itags.org.discussions.microsoft.com> wrote in message
news:0715C212-605A-4162-904F-CBBD5021B896@dotnet.itags.org.microsoft.com...
> Sub BindDropBox()
> conPos.Open()
>
> oSevenIssuesCMD = New SqlCommand("SevenIssues", conPos)
>
> oSevenIssuesCMD.CommandType = CommandType.StoredProcedure
>
> oSevenIssuesCMD.Parameters.Add(New SqlParameter("@dotnet.itags.org.productName",
SqlDbType.VarChar, 50))
> oSevenIssuesCMD.Parameters("@dotnet.itags.org.productName").Value = "TESTPRODUCT"
>
> oSevenIssuesReader = oSevenIssuesCMD.ExecuteReader
>
> DropDownList1().DataSource = oSevenIssuesReader
> DropDownList1.DataTextField = "Cover_Date"
> DropDownList1.DataValueField = "Cover_Date"
>
> DropDownList1.DataBind()
>
> conPos.Close()
>
> End Sub
>
> This is the error
>
> Server Error in '/TEST_application' Application.
> -----------------------
--
> Runtime Error
> Description: An application error occurred on the server. The current
custom error settings for this application prevent the details of the
application error from being viewed remotely (for security reasons). It
could, however, be viewed by browsers running on the local server machine.
> Details: To enable the details of this specific error message to be
viewable on remote machines, please create a <customErrors> tag within a
"web.config" configuration file located in the root directory of the current
web application. This <customErrors> tag should then have its "mode"
attribute set to "Off".
>
> <!-- Web.Config Configuration
File --><configuration><system.web><customErrors
mode="Off"/></system.web></configuration>
>
> Notes: The current error page you are seeing can be replaced by a custom
error page by modifying the "defaultRedirect" attribute of the application's
<customErrors> configuration tag to point to a custom error page URL.
>
> <!-- Web.Config Configuration
File --><configuration><system.web><customErrors mode="RemoteOnly"
defaultRedirect="mycustompage.htm"/></system.web></configurationDid you read the error message? It said to change the mode attribute to
'Off'.
Alternatively, it said you could view the real error by running the page
from the server itself.
"chris" <anonymous@.discussions.microsoft.com> wrote in message
news:C9D4F429-9192-4F60-8812-8FFEDA62FBD1@.microsoft.com...
> change it to what?
asp.net 2.0
My problem is that the image web server control (see below) won't display
the image if web.config have this setting:
<authorization>
<deny users="?" />
</authorization>
<asp:Image ID="logo" runat="server" ImageUrl="~/logo.png" />
Any ideas what I should do to solve this so the image is displayed if
web.config have
<authorization>
<deny users="?" />
</authorization>
Best Regards!
JeffThis web page uses a theme
and it looks like the page can't use the theme either if
<authorization>
<deny users="?" />
</authorization>
<pages theme="Standard" maintainScrollPositionOnPostBack="true"></pages>
any suggestions?
"Jeff" <it_consultant1@.hotmail.com.NOSPAMwrote in message
news:OFg7n$w4GHA.1460@.TK2MSFTNGP05.phx.gbl...
Quote:
Originally Posted by
Hey
>
asp.net 2.0
>
My problem is that the image web server control (see below) won't display
the image if web.config have this setting:
<authorization>
<deny users="?" />
</authorization>
>
<asp:Image ID="logo" runat="server" ImageUrl="~/logo.png" />
>
Any ideas what I should do to solve this so the image is displayed if
web.config have
<authorization>
<deny users="?" />
</authorization>
>
>
Best Regards!
>
Jeff
>
<allow users="Jv"/>
<deny users="?"/>
will allow user "Jv" but deny all anonymous users. You can use to separate
multiple identiies.
<allow users="Jv, Kylin"/>
<deny users="?"/>
"Jeff" <it_consultant1@.hotmail.com.NOSPAMwrote in message news:OjhGjTx4GHA.4352@.TK2MSFTNGP03.phx.gbl...
Quote:
Originally Posted by
This web page uses a theme
>
and it looks like the page can't use the theme either if
<authorization>
<deny users="?" />
</authorization>
>
<pages theme="Standard" maintainScrollPositionOnPostBack="true"></pages>
>
any suggestions?
>
>
"Jeff" <it_consultant1@.hotmail.com.NOSPAMwrote in message news:OFg7n$w4GHA.1460@.TK2MSFTNGP05.phx.gbl...
Quote:
Originally Posted by
>Hey
>>
>asp.net 2.0
>>
>My problem is that the image web server control (see below) won't display the image if web.config have this setting:
><authorization>
> <deny users="?" />
></authorization>
>>
><asp:Image ID="logo" runat="server" ImageUrl="~/logo.png" />
>>
>Any ideas what I should do to solve this so the image is displayed if web.config have
><authorization>
> <deny users="?" />
></authorization>
>>
>>
>Best Regards!
>>
>Jeff
>>
"Jon Paal" <Jon[ nospam ]Paal @. everywhere dot comwrote in message
news:OIVEUIz4GHA.3512@.TK2MSFTNGP04.phx.gbl...
Quote:
Originally Posted by
"?" stands for anonymous users and "*" for all users. So,
>
<allow users="Jv"/>
<deny users="?"/>
>
will allow user "Jv" but deny all anonymous users. You can use to separate
multiple identiies.
>
<allow users="Jv, Kylin"/>
<deny users="?"/>
>
>
>
"Jeff" <it_consultant1@.hotmail.com.NOSPAMwrote in message
news:OjhGjTx4GHA.4352@.TK2MSFTNGP03.phx.gbl...
Quote:
Originally Posted by
>This web page uses a theme
>>
>and it looks like the page can't use the theme either if
><authorization>
> <deny users="?" />
></authorization>
>>
><pages theme="Standard" maintainScrollPositionOnPostBack="true"></pages>
>>
>any suggestions?
>>
>>
>"Jeff" <it_consultant1@.hotmail.com.NOSPAMwrote in message
>news:OFg7n$w4GHA.1460@.TK2MSFTNGP05.phx.gbl...
Quote:
Originally Posted by
>>Hey
>>>
>>asp.net 2.0
>>>
>>My problem is that the image web server control (see below) won't
>>display the image if web.config have this setting:
>><authorization>
>> <deny users="?" />
>></authorization>
>>>
>><asp:Image ID="logo" runat="server" ImageUrl="~/logo.png" />
>>>
>>Any ideas what I should do to solve this so the image is displayed if
>>web.config have
>><authorization>
>> <deny users="?" />
>></authorization>
>>>
>>>
>>Best Regards!
>>>
>>Jeff
>>>
c:\inetpub\wwwroot\myapp\log.txt
will be changed to:
c:\inetpub\wwwroot\myapp\log_20060216.txt
However, as we have many concurrent users on the site at once, each
generating hundreds of log file entries a minute, we're finding that multiple
threads are calling the same code at the same time and we're getting filename
with multiple date stamps. Ie:
c:\inetpub\wwwroot\myapp\log_20060216_20060216.txt
I'm sure this is to do with the following code not being thread-safe despite
the "lock" critical section statement:
string sLog_File_Path = ConfigurationManager.AppSettings["logfilepath"];
lock (FoLockObject) {
sLog_File_Path = Path.Combine(Path.GetDirectoryName(sLog_File_Path) ,
Path.GetFileNameWithoutExtension(sLog_File_Path) + "_" +
DateTime.Now.ToString("yyyyMMdd") +
Path.GetExtension(sLog_File_Path));
}
Can anyone offer advice on the correct way to protect code that is
vulnerable to threading issues. I'm aware of synchronization objects such as
Mutex's but am unsure how to use them with static classes. A stright forward
example in C# without being too clever would be very handy
Thanks
BenIs sLog_File_Path local or member variable?
What about FoLockObject?
Unfortunately it' hard to say where is the problem you need to show us full
class.
George.
"Ben Fidge" <BenFidge@.discussions.microsoft.com> wrote in message
news:27A2FF7B-4565-40A5-8D95-CE197DE94166@.microsoft.com...
> My application uses a singleton static class for writing entries to a log
> file. The location and name of the log-file is read from web.config each
> time
> an entry is written, but has the current date inserted into its name. For
> example, the string:
> c:\inetpub\wwwroot\myapp\log.txt
> will be changed to:
> c:\inetpub\wwwroot\myapp\log_20060216.txt
> However, as we have many concurrent users on the site at once, each
> generating hundreds of log file entries a minute, we're finding that
> multiple
> threads are calling the same code at the same time and we're getting
> filename
> with multiple date stamps. Ie:
> c:\inetpub\wwwroot\myapp\log_20060216_20060216.txt
> I'm sure this is to do with the following code not being thread-safe
> despite
> the "lock" critical section statement:
> string sLog_File_Path = ConfigurationManager.AppSettings["logfilepath"];
> lock (FoLockObject) {
> sLog_File_Path = Path.Combine(Path.GetDirectoryName(sLog_File_Path) ,
> Path.GetFileNameWithoutExtension(sLog_File_Path) + "_" +
> DateTime.Now.ToString("yyyyMMdd") +
> Path.GetExtension(sLog_File_Path));
> }
> Can anyone offer advice on the correct way to protect code that is
> vulnerable to threading issues. I'm aware of synchronization objects such
> as
> Mutex's but am unsure how to use them with static classes. A stright
> forward
> example in C# without being too clever would be very handy
> Thanks
> Ben
Here's an abbreviated version of the full class.
public class CLog {
private static string FsLog_File_Path = "";
private static object FoLockObject = new object();
private static void RefreshSettings() {
FsLog_File_Path = ConfigurationSettings.AppSettings["logfilepath"];
lock (FoLockObject) {
FsLog_File_Path =
Path.Combine(Path.GetDirectoryName(FsLog_File_Path ),
Path.GetFileNameWithoutExtension(FsLog_File_Path) + "_" +
DateTime.Now.ToString("yyyyMMdd") +
Path.GetExtension(FsLog_File_Path));
}
}
public static void WriteInfo(string sDescription) {
RefreshSettings();
StreamWriter oStream = null;
try {
if (File.Exists(FsLog_File_Path)) {
oStream = File.AppendText(FsLog_File_Path);
}
else {
oStream = File.CreateText(FsLog_File_Path);
}
oStream.AutoFlush = true;
string sSession = "";
if (HttpContext.Current != null) sSession =
HttpContext.Current.Session.SessionID + " - ";
else sSession = "";
oStream.WriteLine(string.Format("{0} - {1} - {2}{3}",
DateTime.Now.ToString("dd MMM yyy H:mm:ss"), "INFO", sSession,
sDescription));
}
catch (IOException) {
}
finally {
if (oStream != null) oStream.Close();
oStream = null;
}
}
}
"George Ter-Saakov" wrote:
> Is sLog_File_Path local or member variable?
> What about FoLockObject?
> Unfortunately it' hard to say where is the problem you need to show us full
> class.
> George.
>
> "Ben Fidge" <BenFidge@.discussions.microsoft.com> wrote in message
> news:27A2FF7B-4565-40A5-8D95-CE197DE94166@.microsoft.com...
> > My application uses a singleton static class for writing entries to a log
> > file. The location and name of the log-file is read from web.config each
> > time
> > an entry is written, but has the current date inserted into its name. For
> > example, the string:
> > c:\inetpub\wwwroot\myapp\log.txt
> > will be changed to:
> > c:\inetpub\wwwroot\myapp\log_20060216.txt
> > However, as we have many concurrent users on the site at once, each
> > generating hundreds of log file entries a minute, we're finding that
> > multiple
> > threads are calling the same code at the same time and we're getting
> > filename
> > with multiple date stamps. Ie:
> > c:\inetpub\wwwroot\myapp\log_20060216_20060216.txt
> > I'm sure this is to do with the following code not being thread-safe
> > despite
> > the "lock" critical section statement:
> > string sLog_File_Path = ConfigurationManager.AppSettings["logfilepath"];
> > lock (FoLockObject) {
> > sLog_File_Path = Path.Combine(Path.GetDirectoryName(sLog_File_Path) ,
> > Path.GetFileNameWithoutExtension(sLog_File_Path) + "_" +
> > DateTime.Now.ToString("yyyyMMdd") +
> > Path.GetExtension(sLog_File_Path));
> > }
> > Can anyone offer advice on the correct way to protect code that is
> > vulnerable to threading issues. I'm aware of synchronization objects such
> > as
> > Mutex's but am unsure how to use them with static classes. A stright
> > forward
> > example in C# without being too clever would be very handy
> > Thanks
> > Ben
>
You do have a problem in your code.
This line is not thread safe.
FsLog_File_Path = ConfigurationSettings.AppSettings["logfilepath"];
You are modifying the variable while some other thread could have been doing
the code that is in lock {} section.
So move that line inside (but read further)
---------------
I am not sure why your are doing it this way. Because I do not see any gain
in FsLog_File_Path beign global/member variable.
I would rewrite the code to avoid any synchronization
private static void RefreshSettings() {
string sPath =
ConfigurationSettings.AppSettings["logfilepath"];
sPath = Path.Combine(Path.GetDirectoryName(sPath),
Path.GetFileNameWithoutExtension(sPath) + "_" +
DateTime.Now.ToString("yyyyMMdd") +
Path.GetExtension(sPath));
}
}
As you can see all manipulations are made to local variable so you do not
need lock.
--------------------
The only place where you will need to lock is where you are opening the file
and writing to it. Since that is not thread safe.
And this will fail if you try to open/write into file from multiple threads.
George
"Ben Fidge" <BenFidge@.discussions.microsoft.com> wrote in message
news:B6D5463F-61F6-41BB-B39D-7679E2587C0A@.microsoft.com...
> Here's an abbreviated version of the full class.
> public class CLog {
> private static string FsLog_File_Path = "";
> private static object FoLockObject = new object();
> private static void RefreshSettings() {
> FsLog_File_Path = ConfigurationSettings.AppSettings["logfilepath"];
> lock (FoLockObject) {
> FsLog_File_Path =
> Path.Combine(Path.GetDirectoryName(FsLog_File_Path ),
> Path.GetFileNameWithoutExtension(FsLog_File_Path) + "_" +
> DateTime.Now.ToString("yyyyMMdd") +
> Path.GetExtension(FsLog_File_Path));
> }
> }
> public static void WriteInfo(string sDescription) {
> RefreshSettings();
> StreamWriter oStream = null;
> try {
> if (File.Exists(FsLog_File_Path)) {
> oStream = File.AppendText(FsLog_File_Path);
> }
> else {
> oStream = File.CreateText(FsLog_File_Path);
> }
> oStream.AutoFlush = true;
> string sSession = "";
> if (HttpContext.Current != null) sSession =
> HttpContext.Current.Session.SessionID + " - ";
> else sSession = "";
>
> oStream.WriteLine(string.Format("{0} - {1} - {2}{3}",
> DateTime.Now.ToString("dd MMM yyy H:mm:ss"), "INFO", sSession,
> sDescription));
> }
> catch (IOException) {
> }
> finally {
> if (oStream != null) oStream.Close();
> oStream = null;
> }
> }
> }
> "George Ter-Saakov" wrote:
>> Is sLog_File_Path local or member variable?
>> What about FoLockObject?
>>
>> Unfortunately it' hard to say where is the problem you need to show us
>> full
>> class.
>>
>> George.
>>
>>
>> "Ben Fidge" <BenFidge@.discussions.microsoft.com> wrote in message
>> news:27A2FF7B-4565-40A5-8D95-CE197DE94166@.microsoft.com...
>> > My application uses a singleton static class for writing entries to a
>> > log
>> > file. The location and name of the log-file is read from web.config
>> > each
>> > time
>> > an entry is written, but has the current date inserted into its name.
>> > For
>> > example, the string:
>>> > c:\inetpub\wwwroot\myapp\log.txt
>>> > will be changed to:
>>> > c:\inetpub\wwwroot\myapp\log_20060216.txt
>>> > However, as we have many concurrent users on the site at once, each
>> > generating hundreds of log file entries a minute, we're finding that
>> > multiple
>> > threads are calling the same code at the same time and we're getting
>> > filename
>> > with multiple date stamps. Ie:
>>> > c:\inetpub\wwwroot\myapp\log_20060216_20060216.txt
>>> > I'm sure this is to do with the following code not being thread-safe
>> > despite
>> > the "lock" critical section statement:
>>> > string sLog_File_Path =
>> > ConfigurationManager.AppSettings["logfilepath"];
>>> > lock (FoLockObject) {
>> > sLog_File_Path = Path.Combine(Path.GetDirectoryName(sLog_File_Path) ,
>> > Path.GetFileNameWithoutExtension(sLog_File_Path) + "_" +
>> > DateTime.Now.ToString("yyyyMMdd") +
>> > Path.GetExtension(sLog_File_Path));
>> > }
>>> > Can anyone offer advice on the correct way to protect code that is
>> > vulnerable to threading issues. I'm aware of synchronization objects
>> > such
>> > as
>> > Mutex's but am unsure how to use them with static classes. A stright
>> > forward
>> > example in C# without being too clever would be very handy
>>> > Thanks
>>> > Ben
>>>
>>
>
Hi George,
I see the error of my ways and have changed it as you suggested. This was
basically a quick hack to include the date in the filename, as this wasn't
the origianl intention.
Thanks for the advice
Ben
"George Ter-Saakov" <gt-nsp@.cardone.com> wrote in message
news:OOv8TCwMGHA.3732@.TK2MSFTNGP10.phx.gbl...
> You do have a problem in your code.
> This line is not thread safe.
> FsLog_File_Path = ConfigurationSettings.AppSettings["logfilepath"];
> You are modifying the variable while some other thread could have been
> doing the code that is in lock {} section.
> So move that line inside (but read further)
> ---------------
> I am not sure why your are doing it this way. Because I do not see any
> gain in FsLog_File_Path beign global/member variable.
> I would rewrite the code to avoid any synchronization
> private static void RefreshSettings() {
> string sPath =
> ConfigurationSettings.AppSettings["logfilepath"];
> sPath = Path.Combine(Path.GetDirectoryName(sPath),
> Path.GetFileNameWithoutExtension(sPath) + "_" +
> DateTime.Now.ToString("yyyyMMdd") +
> Path.GetExtension(sPath));
> }
> }
>
> As you can see all manipulations are made to local variable so you do not
> need lock.
> --------------------
> The only place where you will need to lock is where you are opening the
> file and writing to it. Since that is not thread safe.
> And this will fail if you try to open/write into file from multiple
> threads.
> George
>
> "Ben Fidge" <BenFidge@.discussions.microsoft.com> wrote in message
> news:B6D5463F-61F6-41BB-B39D-7679E2587C0A@.microsoft.com...
>> Here's an abbreviated version of the full class.
>>
>> public class CLog {
>> private static string FsLog_File_Path = "";
>> private static object FoLockObject = new object();
>>
>> private static void RefreshSettings() {
>> FsLog_File_Path =
>> ConfigurationSettings.AppSettings["logfilepath"];
>>
>> lock (FoLockObject) {
>> FsLog_File_Path =
>> Path.Combine(Path.GetDirectoryName(FsLog_File_Path ),
>> Path.GetFileNameWithoutExtension(FsLog_File_Path) + "_" +
>> DateTime.Now.ToString("yyyyMMdd") +
>> Path.GetExtension(FsLog_File_Path));
>> }
>> }
>>
>> public static void WriteInfo(string sDescription) {
>> RefreshSettings();
>>
>> StreamWriter oStream = null;
>>
>> try {
>> if (File.Exists(FsLog_File_Path)) {
>> oStream = File.AppendText(FsLog_File_Path);
>> }
>> else {
>> oStream = File.CreateText(FsLog_File_Path);
>> }
>>
>> oStream.AutoFlush = true;
>>
>> string sSession = "";
>> if (HttpContext.Current != null) sSession =
>> HttpContext.Current.Session.SessionID + " - ";
>> else sSession = "";
>>
>>
>> oStream.WriteLine(string.Format("{0} - {1} - {2}{3}",
>> DateTime.Now.ToString("dd MMM yyy H:mm:ss"), "INFO", sSession,
>> sDescription));
>> }
>> catch (IOException) {
>>
>> }
>> finally {
>> if (oStream != null) oStream.Close();
>> oStream = null;
>> }
>> }
>> }
>>
>> "George Ter-Saakov" wrote:
>>
>>> Is sLog_File_Path local or member variable?
>>> What about FoLockObject?
>>>
>>> Unfortunately it' hard to say where is the problem you need to show us
>>> full
>>> class.
>>>
>>> George.
>>>
>>>
>>> "Ben Fidge" <BenFidge@.discussions.microsoft.com> wrote in message
>>> news:27A2FF7B-4565-40A5-8D95-CE197DE94166@.microsoft.com...
>>> > My application uses a singleton static class for writing entries to a
>>> > log
>>> > file. The location and name of the log-file is read from web.config
>>> > each
>>> > time
>>> > an entry is written, but has the current date inserted into its name.
>>> > For
>>> > example, the string:
>>>>> > c:\inetpub\wwwroot\myapp\log.txt
>>>>> > will be changed to:
>>>>> > c:\inetpub\wwwroot\myapp\log_20060216.txt
>>>>> > However, as we have many concurrent users on the site at once, each
>>> > generating hundreds of log file entries a minute, we're finding that
>>> > multiple
>>> > threads are calling the same code at the same time and we're getting
>>> > filename
>>> > with multiple date stamps. Ie:
>>>>> > c:\inetpub\wwwroot\myapp\log_20060216_20060216.txt
>>>>> > I'm sure this is to do with the following code not being thread-safe
>>> > despite
>>> > the "lock" critical section statement:
>>>>> > string sLog_File_Path =
>>> > ConfigurationManager.AppSettings["logfilepath"];
>>>>> > lock (FoLockObject) {
>>> > sLog_File_Path = Path.Combine(Path.GetDirectoryName(sLog_File_Path) ,
>>> > Path.GetFileNameWithoutExtension(sLog_File_Path) + "_" +
>>> > DateTime.Now.ToString("yyyyMMdd") +
>>> > Path.GetExtension(sLog_File_Path));
>>> > }
>>>>> > Can anyone offer advice on the correct way to protect code that is
>>> > vulnerable to threading issues. I'm aware of synchronization objects
>>> > such
>>> > as
>>> > Mutex's but am unsure how to use them with static classes. A stright
>>> > forward
>>> > example in C# without being too clever would be very handy
>>>>> > Thanks
>>>>> > Ben
>>>>>
>>>
>>>
