How to handle global Exception in ASP.Net MVC 2 - exception

Question

My base controller has this override:
protected override void OnException(ExceptionContext filterContext)
{
// http://forums.asp.net/t/1318736.aspx
if (filterContext == null)
{
throw new ArgumentNullException("filterContext");
}
// If custom errors are disabled, we need to let the normal ASP.NET exception handler
// execute so that the user can see useful debugging information.
if (filterContext.ExceptionHandled || !filterContext.HttpContext.IsCustomErrorEnabled)
{
return;
}
Exception exception = filterContext.Exception;
// If this is not an HTTP 500 (for example, if somebody throws an HTTP 404 from an action method),
// ignore it.
if (new HttpException(null, exception).GetHttpCode() != 500)
{
return;
}
}
I want to catch the exception and mail it. I can do the mail part, but not sure how to gather the exception? I am new to MVC. In Web Forms I had this in global.asax
void Application_Error(object sender, EventArgs e)
{
string AdminEmail = "myEmail#domain";
// Code that runs when an unhandled error occurs
Exception objErr = Server.GetLastError().GetBaseException();
string err = "Error Caught in Application_Error event\n" +
"Error in: " + Request.Url.ToString() +
"\n Error Message:" + objErr.Message.ToString() +
"\n Stack Trace:" + objErr.StackTrace.ToString();
// Below uses: using System.Diagnostics;
//EventLog.WriteEntry("Sample_WebApp", err, EventLogEntryType.Error);
//Server.ClearError(); // Clear error prohibits it from showing on page
//additional actions...
MyApp.Utility.Email.Send(AdminEmail, CommonLibrary.FromEmail, "Asp.net Application Error", err);
}
Web.config
<customErrors mode="On" />

Answer 1

I think you need to implement the same logic in your override method on base controller. Something like this:
protected override void OnException(ExceptionContext filterContext)
{
string AdminEmail = "myEmail#domain";
// Code that runs when an unhandled error occurs
Exception objErr = filterContext.Exception;
string err = "Error Caught in Application_Error event\n" +
"Error in: " + Request.Url.ToString() +
"\n Error Message:" + objErr.Message.ToString() +
"\n Stack Trace:" + objErr.StackTrace.ToString();
// Below uses: using System.Diagnostics;
//EventLog.WriteEntry("Sample_WebApp", err, EventLogEntryType.Error);
//Server.ClearError(); // Clear error prohibits it from showing on page
//additional actions...
MyApp.Utility.Email.Send(AdminEmail, CommonLibrary.FromEmail, "Asp.net Application Error", err);
base.OnException(filterContext);
}