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Question

Silverlight exception not being handled with JS

Answer 1

+1 A:

Came up with a solution
Went to the App.xaml.cs file and reworked the Unhandled_Exception Function

With that and a bit of call this JS it was easy

private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
    {
        // If the app is running outside of the debugger then report the exception using
        // the browser's exception mechanism. On IE this will display it a yellow alert 
        // icon in the status bar and Firefox will display a script error.


        // NOTE: This will allow the application to continue running after an exception has been thrown
        // but not handled. 
        // For production applications this error handling should be replaced with something that will 
        // report the error to the website and stop the application.
        e.Handled = true;

        try
        {
            ThrowRightError(e.ExceptionObject);
            //System.Windows.Browser.HtmlPage.Window.Eval("throw new Error(\"Unhandled Error in Silverlight  a 2 Application " + errorMsg + "\");");
        }
        catch
        {
        }

    }
    private void ReportErrorToDOM(ApplicationUnhandledExceptionEventArgs e)
    {
        try
        {
            ThrowRightError(e.ExceptionObject);
            //System.Windows.Browser.HtmlPage.Window.Eval("throw new Error(\"Unhandled Error in Silverlight 2 Application " + errorMsg + "\");");
        }
        catch (Exception)
        {
        }
    }

    private void ThrowRightError(Exception e)
    {
        string errorMsg = "";
        var exLayer = -1;
        //errorMsg += String.Format("<br>Layer {0}<hr>", exLayer);
        Exception ex2 = e;
        while (ex2 != null)
        {
            errorMsg += "Message : <br />" + ex2.Message + "<br />Data :<br />" + ex2.Data + "<br />StackTrace :<br />" + ex2.StackTrace;
            exLayer++;
            errorMsg += String.Format("<br>Layer {0}<hr>", exLayer);
            ex2 = ex2.InnerException;
        }
        errorMsg = errorMsg.Replace('"', '\'').Replace("\r\n", @"<br />");

        HtmlPage.Window.CreateInstance("foo2", new[] { errorMsg });
    }

then for the JS

function foo2(theAlert) {
     $("#errorLocation").html(theAlert);
}

I also figured out what the original error was

ClientIdTextBlock.SetBinding(TextBox.TextProperty, ClientIdBinding);

A textBox binding for a Text*Block*...stupid mistake.

Hurricanepkt 2009-09-02 21:56:54

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Silverlight exception not being handled with JS

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