I am trying to create a session on MVC application
string roleName="Raj"
Session.Add("UserRole", roleName);
But in server i found that it throwing error as
Object reference not set to an instance of an object(I'm unable to create session in server)
Solutions i tried:
Administrator tools -> ASP.NET State Service -> Started
Please help me..
Is there any settings need to set on web.config
Do you have any reference to sessionState in your web.config file? If not, try this:
<configuration>
...
<system.webServer>
...
<modules>
<remove name="Session" />
<add name="Session" type="System.Web.SessionState.SessionStateModule"/>
...
</modules>
</system.webServer>
</configuration>
First, go to IIS.
Select Your Web Site
Select the Basic Setting in the right panel.
Select Connect as.
Select User Have permission to Site Folder
Related
This question already has an answer here:
elmah error handling - store in database
(1 answer)
Closed 6 years ago.
I would like to try to intercept and do some other processing ( export a database ) when elmah raises an error.Is there a way to do that?
ELMAH exposes two events in order to do this: ErrorLog_Filtering and ErrorLog_Logged. ErrorLog_Filtering is called just before logging to the configured error log and ErrorLog_Logged is called just after. You will find documentation about error filtering on the ELMAH site. ErrorLog_Logged isn't really documented, but you can see an example of it in this article: Logging to multiple ELMAH logs.
With that said, you probably don't want to execute any long running tasks as part of ErrorLog_Logged and ErrorLog_Filtering. It will slow down your system. I'm not sure on what you are trying to achieve here by exporting a database on every error?
Yes there is way around
1.Lets Create a Project Name ElmahMvc
2.Install nuget package nuget
Install-Package Elmah.MVC
3. Raise an Exception .There you go access error log by your local url/elmah
http://localhost:20351/elmah
The saving database and Emailing is bit of configuration to take ....
Lets look at it
1.Download ELMAH script form official site
ELMAH
2.add a database named log and run the script
3.add a connection string in web.config
<connectionStrings>
<add name="elmah" connectionString="Data Source=.;Initial Catalog=log;Persist Security Info=True;User ID=sa;Password=pass" providerName="System.Data.SqlClient" />
</connectionStrings>
4.Add a elmah element in web.config
<elmah>
<errorLog type="Elmah.SqlErrorLog, Elmah" connectionStringName="elmah" />
<!--For Addtional Mail Config .Remove it if not need for mail on every error-->
<errorMail from="waltoncrm#waltonbd.com"
to="mrahman.cse32#waltonbd.com"
subject="Application Exception"
async="false"
smtpPort="25"
smtpServer="YourServer"
userName="uName"
password="pass">
</errorMail>
</elmah>
and mail additional
under System.WebServer
<system.net>
<mailSettings>
<smtp deliveryMethod ="Network">
<network host="smtp.gmail.com" port="587" userName="yourgmailEmailAddress" password="yourGmailEmailPassword" />
</smtp>
</mailSettings>
</system.net>
Download my sample project and Elmah script with Visual Studio 2013
akash365.com
Note:if you donot want to crash your program or use it in asp.net web form Static [WebMethod]
This seems perfect
try
{
//some web method code
}
catch(Exception ex)
{
Elmah.ErrorSignal.FromCurrentContext().Raise(ex);
}
I am doing a ASP.NET MVC web application with VS2013. The machine is Windows Server Enterprise, SP2 and IIS 7.
I got the following error:
Server Error in '/' Application.
No owin.Environment item was found in the context.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: No owin.Environment item was found in the context.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[InvalidOperationException: No owin.Environment item was found in the context.]
I googled and found a solution and did something like this (by adding <add name="OWIN".... >) in web.config:
<system.webServer>
<modules >
<remove name="FormsAuthenticationModule" />
<remove name="UrlRoutingModule-4.0" />
<add name="UrlRoutingModule-4.0" type="System.Web.Routing.UrlRoutingModule" preCondition="" />
</modules>
<handlers>
<add name="OWIN" path="*" verb="*" type="Microsoft.Owin.Host.SystemWeb.OwinHttpHandler" />
</handlers>
</system.webServer>
After doing this, the web app works. However, all the static files such as CSS and Javascript are not found by the browser (404 on all of them), and so my app is style-less.
What is the correct way of configuring
<handlers>
<add name="OWIN" path="*" verb="*" type="Microsoft.Owin.Host.SystemWeb.OwinHttpHandler" />
</handlers>
to get my app work right? Or I need do something else?
Thanks!
I got it working after many tests. Here is what I did:
<add name="OWIN" path="/Account/*" verb="*" type="Microsoft.Owin.Host.SystemWeb.OwinHttpHandler" />
Please note the above path attribute that has a specific path. All my javascript and css files are under other top-level directories.
I am no ASP.NET/MVC expert. If someone has better ideas, please let me know!
Cheers.
I always get an error when running my MVC Project since I put
this code on my web.config file.
<roleManager defaultProvider="CustomRoleProvider" enabled="true" cacheRolesInCookie="false">
<providers>
<clear />
<add name="CustomRoleProvider" type="SM.MyRoleProvider" />
</providers>
</roleManager>
This is what my error looks like :
Configuration Error
Description: An error occurred during the processing of a
configuration file required to service this request. Please review the
specific error details below and modify your configuration file
appropriately.
Parser Error Message: This method cannot be called during the
application's pre-start initialization phase.
Please can someone tell me whats going on ?
Hi you must be go to in visual studio and go to path:
website tab -> ASP.NET Configuration ->security tab -> disabled role
I have a web site where configured with:
<roleManager enabled='false'></roleManager>
But I still can see roleManager being executed in the pipeline (by looking at traces, also I am getting exception when roleManager tries to load roles from SQL providers configured in machine.config)
How can I disable roleManager?
fix
add enableSimpleMembership with value false app setting to your web.config.
cause
<roleManager enabled="false" />
will cause Roles.Enabled flag to be set to false, as expected,
but there is WebMatrix.WebData.WebSecurity that says:
internal static void PreAppStartInit()
{
if (!ConfigUtil.SimpleMembershipEnabled)
return;
...
Roles.Enabled = true;
...
}
this will override roleManager setting (this code is executed before RoleManager module is).
to disable SimpleMembership you can add app setting enableSimpleMembership with value="false" (web.config):
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<appSettings>
<add key="enableSimpleMembership" value="false" />
</appSettings>
</configuration>
this will prevent webmatrix from enabling RoleManager.
Another solution (hack) is to remove RoleManager module from the list of modules:
....
<system.webServer>
<modules>
<remove name="RoleManager"/>
</modules>
....
no... I don't think it's correct, even with enableSimpleMembership=false, you'd still need to implement a Dummy RoleProvider, otherwise, exception "The Role Manager feature has not been enabled."
Here's how to implement a dummy RoleProvider:
Turning off only the Role Provider in SimpleMembership
By default the web.config file for MVC project have the following element:
<handlers>
<remove name="MvcHttpHandler"/>
<add name="MvcHttpHandler" preCondition="integratedMode"
verb="*" path="*.mvc" type="System.Web.Mvc.MvcHttpHandler"/>
</handlers>
My problem is that my site returns 404.14, after knocking out all the usual suspects I changed the path (form the snippet above) attribute in the web.config to be "*" and voilà! MVC handler kicks in.
So my question is how does *.mvc even suppose to work? I mean my urls are http://mysite.com/home/index (or even only http://mysite.com/) there is no *.mvc in them.
Am I missing something?
By changing the path you are telling the routing engine to add the .mvc extension to the Url. You probably do not have the .mvc extension mapped in IIS and receive an error.
See here on information about IIS and MVC especially if you are using IIS 6.0:
http://haacked.com/archive/2008/11/26/asp.net-mvc-on-iis-6-walkthrough.aspx