Can we display validations controls error message through javascript alert instead of ErrorMessage property

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Hi all,

Is it possible to display Validation controls error message through javascript alert
and i want to hide to display Errormessage in webform.

please any body advise me.

Thanks
Uday

Posted 20-Sep-11 21:36pm

udaysimha

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koolprasad2003 · Answer 1 · 2011-09-20T21:44:00

Solution 1

yes, it is possible. assisn same validationGroup to all validators. then use validation summary and set ShowMessageBox property to True
here is example[^]

Posted 20-Sep-11 21:44pm

koolprasad2003

Mario Majčica · Answer 2 · 2011-09-20T21:45:00

Solution 2

As your question is not clear enough, I can give you a certain answer.

However, take a look here and see if you find any useful information:

http://msdn.microsoft.com/en-us/library/aa479045.aspx#aspplusvalid_clientside[^]

Cheers!

Posted 20-Sep-11 21:45pm

Mario Majčica

arathi_suresh · Answer 3 · 2011-09-20T21:45:00

Solution 3

Instead of using validation controls you can directly go for validation using javascript.

JavaScript

function validate()
{

if(document.getElementById("name").value="")
{
alert("Name is required");
document.getElementById("name").focus();
return false;
}
return true;
}

Posted 20-Sep-11 21:45pm

arathi_suresh

Thiagarajan Duraisamy · Answer 4 · 2011-09-20T21:49:00

yes u can do.
here is an example for the same using custom validator

this is the javascript, i have used the script to check if my text entered is of length 5, u can write ur alert method inside the else loop.

XML

<head runat="server">
    <title>Untitled Page</title>
    <script language="javascript" type="text/javascript">
    function checkNAME(Source,args)
    {
    var a = document.getElementById("TextBox1").value;
    if(a.length == 5){
    args.IsValid = true;
    }
    else{
    args.IsValid = false;
    }
    }
    </script>
</head>

This is the asp control and its property

XML

<asp:CustomValidator ID="CustomValidator1" runat="server"
            ErrorMessage="CustomValidator" ClientValidationFunction="checkNAME"
            ControlToValidate="TextBox1"></asp:CustomValidator>

ClientValidationFunction wil call the javascript wher u can check for the function u want and display the message.