I want to set ASP.net custom validator error parameter text through client side javascript. How can access it via sender, args parameters in my function?
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See also stackoverflow.com/questions/1230281/…Dexter– Dexter2010-10-25 07:20:40 +00:00Commented Oct 25, 2010 at 7:20
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2 Answers
All you need to do is define the callback method in the ClientValidationFunction property of the CustomValidator definition:
<asp:CustomValidator id="CustomValidator1"
...
ClientValidationFunction="ClientValidationFunction" />
You can then define a client side validation script:
<script language="javascript">
function ClientValidationFunction(sender, args){
var valid = false;
// Validation logic..
sender.errormessage = "Validation failed";
args.IsValid = valid;
return;
}
</script>
Update: The sender variable holds a reference to the custom validator control - because JavaScript is dynamically typed, we can just update its errormessage property directly:
sender.errormessage = "This is a new validation message";
This worked for me:
var clientValidationFunction = function(sender, args) {
sender.textContent = sender.innerText = sender.innerHTML = "My new error text";
// etc...
};
I just looked at the sender object and replaced all occurrences of the current error string, with the new error string.
