Cross coupled validation using ASP .NET Validation controls

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Hello all,
I have a use case were i am supposed to implement a business rule which validates input of a control against another.The trick here is there an arithemetic expression involved between the two inputs.
Just to give a gist of my requirement:
Assume there are two fields Salary and Loan. My requirement is that the loan amount entered should be less than 30 times of the users salary.
i.e. LoanAmount < 30 * Salary.
I thought of using ComparerValidator but the CompareToValue takes a string!!
How can i implement this requirement using ASP .NET valdation controls?
As ASP .NET Validation have this nice feature of automatically generating client side scripts. I want to leverage that.

If its not possible with ASP .NET validation controls , what are the alternatives?

Posted 2-Jun-13 23:36pm

harsha_techi

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Rockstar_ 3-Jun-13 5:50am

You can write a javascript function to calculate this...

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Rockstar_ · Answer 1 · 2013-06-03T00:00:00

Hi,

JavaScript

<pre lang="xml"><script type="text/javascript">
        function validate() {
            debugger;
            var t1 = document.getElementById('t1').value;
            var t2 = document.getElementById('t2').value;
            if (t1 < (30 * t2))

               return  true;

            else
                 return false;

        }

    </script>