Home > ASP.Net, Javascript > Javascript to Validate Empty Textbox

Javascript to Validate Empty Textbox


Hi

try this example:-

<script type ="text/javascript" >

function msgBox(item)
{
var val=item.value;
if (val!=null)
{
val=(val.replace(/^\s+/,'')).replace(/\s+$/,'');
}
if (val=='')
{
alert('TextBox shouldnot be empty');
item.focus();
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" onblur =" msgBox(this);" runat="server"></asp:TextBox><br />
<asp:TextBox ID="TextBox2" onblur =" msgBox(this);" runat="server"></asp:TextBox>
</div>
</form>
</body>
</html>

Hope this helps

Good Luck

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Categories: ASP.Net, Javascript
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