How do i clear the validation message displayed as text in the page.

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How do I clear the validation message displayed as text in the page. Code is given below:

function resettextbox()
{
	
	document.getElementById("spnFirstName").innerHTML=null;
	document.getElementById("spnSecondName").innerHTML=null;
	document.getElementById("frm1").reset();
}

XML

<html>
<body>
<script type="text/javascript" src="External.js">
</script>
<form id="frm1" method="get">
<table>
<tr>
     <td>First Name: <input type="textbox" id="FirstName"/></td>
     <td>Second Name:<input type="textbox" id="SecondName"/></td>
    <td><input type="button" value="Submit" onClick="return validation()"/></td>
     <td><input type="button" value="Reset"  onClick="reset()"/></td>
</tr>
<tr>
     <td><span id="spnFirstName" span style=color:red></span></td>
     <td><span id="spnSecondName" span style=color:red></span></td>
</tr>
</table>
</form>
</body>
</html>

Posted 13-Jan-11 22:01pm

Lyn123

Updated 13-Jan-11 22:04pm

JF2015

v2

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JF2015 14-Jan-11 4:04am

Edited to fix code formatting.

2 solutions

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Espen Harlinn · Answer 1 · 2011-01-13T22:12:00

Solution 1

Take a look at this article:
Multiple Fields Validator - An ASP.NET Validation Control[^]

It's probably one of the easier solutions your problem, and the implementation is fairly robust.

Regards
Espen Harlinn

Posted 13-Jan-11 22:12pm

Espen Harlinn

sapien4u · Answer 2 · 2011-02-01T00:55:00

If you just want to clear the contents of the span, use this code:

document.getElementById("spnFirstName").innerHTML = '';

If you want to hide the span, use the following code:

document.getElementById("spnFirstName").style.display = '';

I am adding code to show some demonstration:

Use the following Java Script:

C#

function resettextbox(val) {
    document.getElementById("spnFirstName").innerHTML = val;
    document.getElementById("spnSecondName").innerHTML = val;
}
function showhidetextbox(val) {
    document.getElementById("spnFirstName").style.display = val;
    document.getElementById("spnSecondName").style.display = val;
}

Use the following aspx code:

XML

<div>
    <input type="button" value="HIDE" onclick="showhidetextbox('none');" />
    <input type="button" value="Show" onclick="showhidetextbox('');" />
    <input type="button" value="Clear" onclick="resettextbox('');" />
    <input type="button" value="Set" onclick="resettextbox('Value');" />
    <span id="spnFirstName" style="color: red">1</span>
    <span id="spnSecondName" style="color: red">2</span>
</div>