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Hi,
I'm in need of help to get the coding for Username validation.When i'm entering characters it should accept other than characters if im entering numbers it should not accept and it should show the message "Invalid Character"
 
Regards
Balamurugan
Posted 8-Oct-12 18:09pm
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Solution 1

 function isNumberKey(evt) {
            var charCode = (evt.which) ? evt.which : event.keyCode
            if ((charCode < 48 || charCode > 57))
                return false;
            return true;
        }
Client Side Coding Call OnKeyPress Event
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Solution 2

 function isNumberKey(evt) {
            var charCode = (evt.which) ? evt.which : event.keyCode
            if ((charCode < 48 || charCode > 57))
                return false;
            return true;
        } Client Side Coding Call OnKeyPress Event 
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Solution 4

Try this
 
function fnvalidate() {
        if (!form1.TextBox1.value.match(/^[a-zA-Z]+$/) && form1.TextBox1.value != "") {
            form1.TextBox1.value = "";
            form1.TextBox1.focus();
            alert("only alphabets are allowed as UserName");
        }
    }
 
Call the function in onblur event of ur control on client side
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