Introduction
We can use javascript to disable right mouse click or ctrl keys to ensure user is not able to copy paste in a textboxwe can achieve this in 2 ways
1. use this method when you don't want any alerts or message
2. If you want to show alerts than use this method instead<asp:TextBox ID="TextBox1" runat="server" oncopy="return false" onpaste="return false" oncut="return false"> asp:TextBox>
Right this javascript function in the head section of aspx page, in this function we are disabling right mouse click and ctrl keysNow use this function on the textbox which we want to disable copy paste and right clicking
<head runat="server"> <title>Untitled Pagetitle> <script language="javascript"> function DisableRightClick(event) { //For mouse right click if (event.button==2) { alert("Right Clicking not allowed!"); } } function DisableCtrlKey(e) { var code = (document.all) ? event.keyCode:e.which; var message = "Ctrl key functionality is disabled!"; // look for CTRL key press if (parseInt(code)==17) { alert(message); window.event.returnValue = false; } } script> head>
<body>
<form id="form1" runat="server">
<div>
<strong>
Right click disabledstrong> textbox
<br />
<asp:TextBox ID="TextBoxCopy" runat="server"
onMouseDown="DisableRightClick(event)">
asp:TextBox><br />
<br />
<strong>Ctrl key strong>disabled<br />
<asp:TextBox ID="TextBox2" runat="server"
onKeyDown="return DisableCtrlKey(event)">
asp:TextBox><br />
<br />
Another method to disable<strong> Cut,Copy and paste
strong>in textbox<br />
<br />
<asp:TextBox ID="TextBox1" runat="server"
oncopy="return false"
onpaste="return false"
oncut="return false">
asp:TextBox>
form>
body>by Amit.jain
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