public string ErrorHandler()
{
try
{
string x = null;
x.ToString();
}
catch (Exception ex)
{
var eh = new WebErrorHandler(ex);
return eh.ToString();
}
return null;
}
protected void Application_Error()
{
try
{
Exception serverException = Server.GetLastError();
WebErrorHandler errorHandler;
// Try to log the inner Exception since that's what
// contains the 'real' error.
if (serverException.InnerException != null)
serverException = serverException.InnerException;
errorHandler = new WebErrorHandler(serverException);
// MUST clear out any previous response in case error occurred in a view
// that already started rendering
Response.Clear();
// Log the error if specified
if (LogManagerConfiguration.Current.LogErrors)
{
errorHandler.Parse();
//try
//{
WebLogEntry entry = new WebLogEntry(serverException, this.Context);
entry.Details = errorHandler.ToString();
LogManager.Current.WriteEntry(entry);
//}
//catch { /* Log Error shouldn't kill the error handler */ }
}
// Retrieve the detailed String information of the Error
string ErrorDetail = errorHandler.ToString();
// Optionally email it to the Admin contacts set up in WebStoreConfig
if (!string.IsNullOrEmpty(App.Configuration.ErrorEmailAddress))
AppWebUtils.SendAdminEmail(App.Configuration.ApplicationTitle + "Error: " + Request.RawUrl, ErrorDetail, "",
App.Configuration.ErrorEmailAddress);
// Debug modes handle different error display mechanisms
// Default - default ASP.Net - depends on web.config settings
// Developer - display a generic application error message with no error info
// User - display a detailed error message with full error info independent of web.config setting
if (App.Configuration.DebugMode == DebugModes.DeveloperErrorMessage)
{
Server.ClearError();
Response.TrySkipIisCustomErrors = true;
ErrorController.ShowErrorPage("Application Error", "<div class='codedisplay'><pre id='Code'>" + HttpUtility.HtmlEncode(ErrorDetail) + "</pre></div>");
return;
}
else if (App.Configuration.DebugMode == DebugModes.ApplicationErrorMessage)
{
string StockMessage =
"The Server Administrator has been notified and the error logged.<p>" +
"Please continue by either clicking the back button or by returning to the home page.</p>" +
"<p><b><a href='" + Request.ApplicationPath + "'>Click here to continue...</a></b></p>";
// Handle some stock errors that may require special error pages
HttpException httpException = serverException as HttpException;
if (httpException != null)
{
int HttpCode = httpException.GetHttpCode();
Server.ClearError();
if (HttpCode == 404) // Page Not Found
{
Response.StatusCode = 404;
ErrorController.ShowErrorPage("Page not found",
"You've accessed an invalid page on this Web server. " +
StockMessage,null);
return;
}
if (HttpCode == 401) // Access Denied
{
Response.StatusCode = 401;
ErrorController.ShowErrorPage("Access Denied",
"You've accessed a resource that requires a valid login. " +
StockMessage);
return;
}
}
// Display a generic error message
Server.ClearError();
Response.StatusCode = 500;
Response.TrySkipIisCustomErrors = true;
ErrorController.ShowErrorPage("Application Error",
"We're sorry, but an unhandled error occurred on the server. " +
StockMessage);
return;
}
return;
}
catch (Exception ex)
{
// Failure in the attempt to report failure - try to email
if (!string.IsNullOrEmpty(App.Configuration.ErrorEmailAddress))
{
AppWebUtils.SendAdminEmail(App.Configuration.ApplicationTitle + "Error: " + Request.RawUrl,
"Application_Error failed!\r\n\r\n" +
ex.ToString(), "",App.Configuration.ErrorEmailAddress);
}
// and display an error message
Server.ClearError();
Response.StatusCode = 500;
Response.TrySkipIisCustomErrors = true;
ErrorController.ShowErrorPage("Application Error Handler Failed",
"The application Error Handler failed with an exception." +
(App.Configuration.DebugMode == DebugModes.DeveloperErrorMessage ? "<pre>" + ex.ToString() + "</pre>" : ""),null);
}
}
