In this article I will explain with an example, how to disable mouse right click in ASP.Net (.aspx) page using JavaScript.
 
 

JavaScript Script to disable Right Click

Inside the oncontextmenu event handler, the event is cancelled by returning FALSE.
<script type="text/javascript">
    //Disable the Context Menu event.
    document.oncontextmenu = function () {
        return false;
    };
</script>
 
 

Disabling Mouse Right Click in ASP.Net using JavaScript

You will need to place the following script in HEAD section of your ASP.Net (.aspx) page or Master Page (.master).
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script type="text/javascript">
        //Disable the Context Menu event.
        document.oncontextmenu = function () {
            return false;
        };
    </script>
</head>
<body>
    <form id="form1" runat="server">
        <h1>Try to Right Click on this Page.</h1>
    </form>
</body>
</html>
 
 

Screenshot

Disable Mouse Right Click in ASP.Net using JavaScript
 
 

Browser Compatibility

The above code has been tested in the following browsers.
Microsoft Edge   FireFox  Chrome  Safari  Opera
* All browser logos displayed above are property of their respective owners.
 
 

Demo

 
 

Downloads