--- title: "How to call server-side function from client-side in ASP.NET?" description: "How to call server-side function from client-side in ASP.NET?" author: "marcel ethan" published: 2014-08-23 updated: 2014-08-23 canonical: https://www.mindstick.com/forum/2110/how-to-call-server-side-function-from-client-side-in-asp-dot-net category: "asp.net" tags: ["asp.net"] reading_time: 1 minute --- # How to call server-side function from client-side in ASP.NET? I have a [web page](https://www.mindstick.com/forum/718/sql-server-report-alignment-to-center-of-web-page) having [asp.net](https://www.mindstick.com/articles/934/default-folders-available-inside-the-asp-dot-net-application-folder) [button control](https://www.mindstick.com/forum/148/problem-in-assign-css-on-button-control-by-javascript) and [textbox](https://www.mindstick.com/forum/12714/dynamic-textbox-in-gridview). I want a [confirm](https://answers.mindstick.com/qa/115761/facebook-account-locked-with-confirm-your-identity-loop) [message](https://www.mindstick.com/forum/12802/show-confirmation-message-yes-or-no-in-asp-dot-net) box, when someone changes the [content](https://www.mindstick.com/articles/13019/get-the-best-content-marketing-pricing-packages-for-your-brand) of textbox and click on button. If user click on yes then [event](https://www.mindstick.com/articles/167719/marquee-hire-benefits-of-event-lighting-hire-london) of button should fire other wise nothing should happen. All I want is to implement AJAX call back, but it is not working with ASP.NET button control. ## Replies ### Reply by Sumit Kesarwani Hi Marcel, \ Just add the following code to your aspx code Hope this will solve your problem. --- Original Source: https://www.mindstick.com/forum/2110/how-to-call-server-side-function-from-client-side-in-asp-dot-net Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.