Why am I getting thread was being aborted in asp net


ASP.NET is a popular programming language used for developing web applications. However, developers often encounter issues and errors while working with ASP.NET. One error that developers face is the “Thread was being aborted” error. In this article, we will explore the reasons behind this error and provide solutions to resolve it.

Understanding the Error

The “Thread was being aborted” error occurs when the server terminates the of a thread it completes its operation. This can happen due to various reasons, such as a long-running operation or an call to abort the thread. Let's take a look at some scenarios this error can occur.

Scenario 1: Long-Running Operation

One possible reason for encountering the “Thread was being aborted” error is when a web request a long-running operation that exceeds the server's timeout limit. For example, if you have a web page that performs a database query that takes a significant amount of time to execute, the server may terminate the thread to prevent resource exhaustion.

// Example of a long-running operation
protected void Page_Load(object sender, EventArgs e)
    // Perform a time-consuming database query
    // ...

To resolve this issue, you can increase the server's timeout limit by modifying the web.config file. You can add the following configuration in the section:

This configuration sets the timeout limit to 3600 (1 hour). Adjust the value according to your application's requirements.

Scenario 2: Explicit Thread Abort

Another reason for encountering the “Thread was being aborted” error is when the thread is explicitly aborted using the Thread.Abort() method. This method forcefully terminates the thread, which can lead to unexpected behavior and errors.

// Example of explicit thread abort
protected void Page_Load(object sender, EventArgs e)
    Thread thread = new Thread(LongRunningOperation);
    thread.Abort(); // Explicitly abort the thread

private void LongRunningOperation()
    // Perform a long-running operation
    // ...

To avoid this error, it is recommended to avoid using Thread.Abort() method in ASP.NET applications. Instead, you can use mechanisms like cancellation tokens or background workers to gracefully stop long-running .


The “Thread was being aborted” error in ASP.NET can be caused by long-running operations or explicit thread aborts. By understanding the reasons behind this error and implementing the suggested solutions, you can effectively resolve this issue and ensure execution of your ASP.NET applications.

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