How to disable All child Controls in a div with the help of KnockoutJS

[sudhans...@gmail.com]

How to disable All child Controls in a div with the help of Knockout JS

[Patrick Steele]

You could create a custom binding handler that would add/remove the "disabled" attribute on a set of elements.  Here's a quick sample I threw together:

ko.bindingHandlers.toggleAll = {
    update: function(element, valueAccessor, allBindingsAccessor) {
        var aa = allBindingsAccessor();
        var selector = aa.selector;
        var va = valueAccessor();
        var value = ko.utils.unwrapObservable(va);
        if( value )
        {
            $(selector).children().removeAttr('disabled');
        }
        else
        {
            $(selector).children().attr('disabled', 'disabled');
        }
    }
};

Here's the jsFiddle showing how it works:

http://jsfiddle.net/psteele/bde8H/

---
Patrick Steele
http://weblogs.asp.net/psteele

On Wed, Jul 10, 2013 at 5:38 AM, <sudhans...@gmail.com> wrote:

How to disable All child Controls in a div with the help of Knockout JS

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[Sudhanshu Shukla]

Thanks Patrick for Replay.

But I have only sever side controls in that Div, which I want to disable.

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Thanks & Regards,

Sudhanshu Shukla

[Patrick Steele]

How would you disable them without knockout?  What's the technology behind these server side controls?

---
Patrick Steele
http://weblogs.asp.net/psteele