How Can I Avoid the System.Threading.ThreadAbortException in Response.Redirect()?

Avoiding System.Threading.ThreadAbortException with Response.Redirect

Using Response.Redirect(...) for page redirection can sometimes trigger a System.Threading.ThreadAbortException. This happens because the web server abruptly stops page processing after the redirect.

The endResponse parameter in Response.Redirect controls how the current page's execution ends. Setting endResponse to true (the default) terminates the page immediately, which can lead to data loss and inefficient processing. Setting it to false prevents the exception but lets the page continue running unnecessarily.

The best solution is to use Response.Redirect(url, false) followed by Context.ApplicationInstance.CompleteRequest(). This immediately moves the IIS pipeline to the EndRequest phase, stopping the current page's execution cleanly.

For a deeper understanding and further advice, including redirect handling within Application_Error handlers, see Thomas Marquardt's insightful blog post on this topic.

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