UpdatePanel Exception Handling

Question

Where exceptions occur in the UpdatePanels I\'ve implemented in the ASP.NET web app I\'m building, they cause a JavaScript error on the page with some high level error output av

Answer 1

You can use a combination of the AsyncPostBackError event on the ScriptManager (server-side) and the EndRequest event on the PageRequestManager (client-side) to fully handle server-side errors when using the UpdatePanel.

Here are a couple resources that should help you:

Customizing Error Handling for ASP.NET UpdatePanel Controls

Error Handling Customization for ASP.NET UpdatePanel

Here's a simple example:

// Server-side
protected void ScriptManager1_AsyncPostBackError(object sender, 
    AsyncPostBackErrorEventArgs e)  {
    ScriptManager1.AsyncPostBackErrorMessage =
        "An error occurred during the request: " +
        e.Exception.Message; 
}


// Client-side