In  Asp.Net you might have noticed you browser getting refreshed whenever you save any File using Fileupload in Webforms or MVC. We will see how we can stop that.

You have to dowload this extension for Visual Studio from this link

https://marketplace.visualstudio.com/items?itemName=MadsKristensen.BrowserReloadonSave        

After downloading just double click on that and attach that with your Visual Studio 2015,20117 or 2019 .And Follow the steps

 So you have to go to Tools > Options > Web
And Then turn Browser Reload On save to False and Ok
And Now your browser won't reload again on file Save.