How to Validate Textbox in ASP.NET

[davidson1]

Hai friends,

I am having a

Textbox1 and Submit button

Whenever any user press that submit button....

i should validate such a way that , they can enter only integer between 50 and 100

if they enter 150 or any String i should show a error...

i dont want to use any rangevalidator , because i have to use this concept in array......

if u know any simple coding send me....

Thank U

Davidson

1 March 2008

[SharpDeveloper]

Write a Custom JavaScritp function to validate the same and attach the function to the submit button.

In pageLoad
btnSubmit.Attri butes.Add("onCl ick", "javascript:ret urn ValidateRangeVa lue()")

JavaScript
<script language="javas cript" type="text/javascript">
function ValidateNumber( iValue)
{
for(var i=0;i< iValue.length;i ++)
{
// Check that current character is number.
var c = iValue.charAt(i );

if ((c < "0") || (c > "9"))
{
alert(c);
return false;
}
}
}
function ValidateRangeVa lue()
{
var txtField=form1. document.getEle mentById('TextB ox1');
if(txtField.val ue!="")
{
if (ValidateNumber (txtField.value )==false)
{
alert('Enter Number only');
return false;
}
else
{
if(parseInt(txt Field.value)>=5 0 && parseInt(txtFie ld.value)<100)
{
return true;
}
else
{
alert('Value should be between 50-100');
return false;
}
}
}
}
</script>
Hope this helps you.

Hai friends,

I am having a

Textbox1 and Submit button

Whenever any user press that submit button....

i should validate such a way that , they can enter only integer between 50 and 100

if they enter 150 or any String i should show a error...

i dont want to use any rangevalidator , because i have to use this concept in array......

if u know any simple coding send me....

Thank U

Davidson

1 March 2008