Disable some ASP.Net validation controls when a checkbox is checked

Question

I'm using old fashioned ASP.NET validation (ugh) for a checkout process. I have a checkbox -"I'll call with my credit card details"-. If checked I need to disable the required field validator and cc validator for the credit card number both on the client and on the Postback.

How do it do it?

Eduardo Molteni · Accepted Answer · 2009-04-21 23:16:32Z

11

You can disable the validators client-side (in javascript):

function disable(validatorId)
{
   var validator = document.getElementById(validatorId);
   ValidatorEnable(validator, false);
}

Where validatorId is the clientID of the validator to be disabled. See this page for a complete example.

edited Apr 21, 2009 at 23:16

Eduardo Molteni

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answered Apr 21, 2009 at 23:08

M4N

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2 Comments

Daniel Ballinger Over a year ago

I needed to add the following after ValidatorEnable() to hide any existing validator messages. validator.isvalid = true; ValidatorUpdateDisplay(validator);

Jaider Over a year ago

A better solution will be using jQuery selector of those validators where they may have a common css state, such as, hidden

Eduardo Molteni · Accepted Answer · 2009-04-21 23:15:45Z

3

You can disable the validators server-side:

MyFieldValidator.Enabled = MyCheckBox.Checked

Page.Validate()
If Page.IsValid Then
   'stuff
end if

edited Apr 21, 2009 at 23:15

answered Apr 21, 2009 at 23:00

Eduardo Molteni

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Comments

henda79 · Accepted Answer · 2012-12-06 17:55:28Z

2

If you're disabling server side then you can do

button1.CausesValidation = False

in your CheckChangedEvent this is more helpful if you have a lot of validators and need to disable them all.

answered Dec 6, 2012 at 17:55

henda79

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1 Comment

Terence Golla Over a year ago

protected void NoValidation_CheckedChanged(object sender, EventArgs e) { SubmitButton.CausesValidation = !NoValidation.Checked; }

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