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15 April, 2013

How to make Asp.net Textbox Readonly in JavaScript

Introduction

Here I will explain how to make or set asp.net textbox readonly using JavaScript.

Description: 
   
In previous post I explained Set Readonly textbox using jQuery, Redirect to another page after 5 seconds Simple Accordion menu using jQuery, split the string using split function in jquery and many articles relating to JavaScript. Now I will explain how to make or set asp.net textbox readonly using JavaScript.

If we want to make asp.net textbox readonly using JavaScript we need to write the code like as shown below

<script type="text/javascript">
function SetReadOnly() {
var txtName = document.getElementById("txtUserName");
txtName.readOnly = "readonly";
}
</script>
If you want check this code in complete example check below code

Example:


<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>how to make asp.net textbox readonly in javascript</title>
<script type="text/javascript">
function SetReadOnly() {
var txtName = document.getElementById("txtUserName");
txtName.readOnly = "readonly";
}
</script>
</head>
<body onload=" SetReadOnly()">
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtUserName" runat="server"></asp:TextBox>
</div>
</form>
</body>
</html>
Demo

Try to enter text in below textbox

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