Question

I have designed a page where user can write messages and send within a group but i want that if they enter any special character like <>?#@ etc a msg should be displayed irrespective of the crashing of the page.

Can anyone help me out???

Answer 1

for that you have to use javaScript validation or any server site validation
for javaScript

function validate(inputText)
{
if(inputText.match(/[<>]/))
return false;
}
function TextBoxValidate()
{
var txt1=document.getElementById(TextBoxId).value;
if(!(validate(inputText)))
{
alert(“incorrect text”)
return false;
}
else
return true;
}

call these function in that text box where you want to validate by using onClientClick=”return TextBoxValidate();”