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I have a validator in my Webform.aspx

<asp:RequiredFieldValidator ID="val1" ClientIDMode="Static" runat="server"/>

In my jquery, I have a function which attempts to disable it called by a button in the markup

btnclick = function()
{
    var a = $('#val1');
    alert(a); //alerts [object Object]
    ValidatorEnable(a, false); //gets a console error
}

when this function is executed, I get an error in the console (I am using Google Chrome), saying that uncaught TypeError: Cannot set property 'visibility' of undefined

Is this saying that my var a is undefined? ... but that makes no sense since it is alerting an [object Object]

I also did alert(a.length) which gave me 1 as expected.

I have a validator in my Webform.aspx

<asp:RequiredFieldValidator ID="val1" ClientIDMode="Static" runat="server"/>

In my jquery, I have a function which attempts to disable it called by a button in the markup

btnclick = function()
{
    var a = $('#val1');
    alert(a); //alerts [object Object]
    ValidatorEnable(a, false); //gets a console error
}

when this function is executed, I get an error in the console (I am using Google Chrome), saying that uncaught TypeError: Cannot set property 'visibility' of undefined

Is this saying that my var a is undefined? ... but that makes no sense since it is alerting an [object Object]

I also did alert(a.length) which gave me 1 as expected.

• javascript
• jquery
• asp
• validation

Share Improve this question Follow edited Mar 7, 2013 at 15:20 jrummell 43.1k1818 gold badges115115 silver badges175175 bronze badges asked Mar 7, 2013 at 15:13 RhsRhs 3,3181313 gold badges5252 silver badges9090 bronze badges 7

• I just had this problem yesterday and couldn't figure it out. Went with CustomValidator, that may be a viable option for you as well. – Andrew Walters Commented Mar 7, 2013 at 15:17
• @AndrewWalters I am leaning towards that however I saw that this is a viable solution. I am just confused as to why it doesn't work. – Rhs Commented Mar 7, 2013 at 15:19
• 1 Have you tried ValidatorEnable(a[0], false)? ValidatorEnable needs an element, not a jQuery object. – jrummell Commented Mar 7, 2013 at 15:20
• Usually the requiredfield validators don't need to be invoked with a custom javascript, they will be invoked with a submit button. Why invoke with .js? – Jon Harding Commented Mar 7, 2013 at 15:20
• @jrummell that appears to be the solution thanks! – Rhs Commented Mar 7, 2013 at 15:22

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1 Answer 1

Sorted by: Reset to default 12

ValidatorEnable needs an element, not a jQuery object. You can get the first matched element using an index.

var a = $('#val1');
ValidatorEnable(a[0], false);

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