Javascript validation in MVC view

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I have a MVC view in which I am using

C#

@using (Html.BeginForm(ProductdetailSave,Product_Catalog, FormMethod.Post))

I have two textboxes MRP and selling price . I want to validate selling price should not be greater than MRP . so I using on click- "checkSP()".
It is executing function but though it is returning false, my form gets submitted

What I have tried:

JavaScript

function checkSP()
{
    debugger;

    var MRP = $("#MRP").val();
    var SP = $("#Selling_price").val();

    if (parseInt(MRP) < parseInt(SP)) {
        alert("Selling Price Should be Less Than MRP");

        return false;
    }

}

Posted 28-Mar-16 20:50pm

Member 10814343

Updated 30-Mar-16 3:17am

Passion4Code

v2

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Karthik_Mahalingam 29-Mar-16 4:01am

post your form code.

2 solutions

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Parveen Siwach · Answer 1 · 2016-03-28T21:06:00

Solution 1

You can use onclick="return checkSP()"

When you call a method (that return value) on an onclick event then put return before that method, because your method will return value (either true/false).

Thanks,

Posted 28-Mar-16 21:06pm

Parveen Siwach

Comments

Karthik_Mahalingam 29-Mar-16 4:03am

yes, you are right.

Passion4Code · Answer 2 · 2016-03-30T03:17:00

After the return false, the event is propagating through. You can try e.preventDefault() as well.
And one more thing is on tab out of the selling price itself have the function check using onfocusout event, rather than doing that on submit. That will alert user before filling in other values as well.

Thanks