Elmah Error Logging Http Handler Links

http://www.hanselman.com/blog/NuGetPackageOfTheWeek7ELMAHErrorLoggingModulesAndHandlersWithSQLServerCompact.aspx

http://docs.nuget.org/docs/start-here/Using-the-Package-Manager-Console

Steps for apply elmah for Project (WebApplication - WebSite)
1- open your solution using visual studio.
2- Open Package Manager Console
3- Install-package elmah
4-install-package elmah.sqlserver

5- go to your solution folder and  find Package Folder then elmah.sqlserver.1.2 you will find sql file

Elmah.SqlServer.sql

run the script to your sql server to create elmah database.

6- after creating elmah script on your sql server Change Connection String in your web.config to be linked to your sql server instance.

7- run your project to open elmah.axd to get errors occured as http errors

8- To Apply Elmah For All Solution to log All Errors you should write this code in your functions exception handling

try

{

// your function code

}

   Catch ex As Exception

                Elmah.ErrorSignal.FromCurrentContext().Raise(ex)

            End Try

9- to enable send Mail Using Elmah to your Mail instead of monitor errors using elmah.axd

you should change mail configuration for elmah in your web.config 

<elmah>

    <security allowRemoteAccess="true" />

    <errorLog type="Elmah.SqlErrorLog, Elmah" connectionStringName="ELMAH_CONSTR" />

    <errorMail from="portal@mwa.gov.sa" to="msibrahim@mwa.gov.sa" subject="خطأ في البوابة الداخلية تجريبي" async="false">

    </errorMail>

    <errorFilter>

      <test>

        <or>

          <regex binding="Exception.Message" pattern="^The operation has timed out$" />

          <and>

            <equal binding="HttpStatusCode" value="404" type="Int32" />

            <equal binding="HttpStatusCode" value="504" type="Int32" />

            <regex binding="FilterSourceType.Name" pattern="mail" />

          </and>

          <and>

            <regex binding="Exception.Message" pattern="^Logon failure: unknown user name or bad password" />

            <regex binding="Exception.Message" pattern="^Microsoft.Exchange.WebServices.Data.AutodiscoverLocalException: The Autodiscover service couldn't be located." />

            <regex binding="FilterSourceType.Name" pattern="mail" />

          </and>

        </or>

      </test>

    </errorFilter>

  </elmah>

10- you should edit your smtp mail server configuration in IIs Or your Web.config file

<system.net>

    <mailSettings>

      <smtp>

        <network host="your smtp mail server" port="25"  password="****" userName="******" />

      </smtp>

    </mailSettings>

  </system.net>

11- now you will receive automatic mail when any error occurs for your web site.

thanks.