bind value to checkbox

Question

<input type="checkbox" name="chkbox" 
 onclick="Utility('<%# Eval("id") %>');"
checked='<%# Eval("Contacted") %> ' />

onclick is used to run AJAX, which updates the record in the DB depending on wether the checkbox was selected or unselected.

My Q being....I want to grab 'T' or 'F' which is stored in 'contacted' in code behind I was trying to do this through the normal binding Eval("Contacted")...(as in code behind 'Contacted' will have the value.

Any ideas? thanks

Checked is a boolean property = 'checked' or = '', It is not intended to hold a value, that's what the VALUE attribute is for. — Diodeus - James MacFarlane, Mar 11 '13 at 14:49
When i mean value I meant 'true' or 'false' for if it is checked out not, as 'contacted' in code behind will either be t or f...so I wanted it to know what it was stored as — John, Mar 11 '13 at 14:51
on an html input checked = "checked" or "", checked="true" doesn't mean anything. Use an asp.net checkbox control for the behavior you want — Ben Robinson, Mar 11 '13 at 14:52
IT IS NOT A TRUE/FALSE FLAG. It is a boolean property that can = 'checked' or ='' < -- nothing. — Diodeus - James MacFarlane, Mar 11 '13 at 14:52
[Duplicate](http://stackoverflow.com/questions/426258/how-do-i-check-a-checkbox-with-jquery-or-javascript) — Jack Pettinger, Mar 11 '13 at 14:57

score 1 · Answer 1 · answered Mar 11 '13 at 14:54

1

You can grab the value of checked (true or false) with:

var isChecked = $("#chkbox").is(":checked"); //returns true or false

You can set the value with prop

$("#chkbox").prop("checked", true); //Sets box to checked.

answered Mar 11 '13 at 14:54

tymeJV

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score 1 · Answer 2 · answered Mar 11 '13 at 15:02

I believe what you want to achive is something like this:

<input type="checkbox" name="chkbox" id="chkbox" />


    $('#chkbox').change(function(e) {
        if($(this).is(':checked')) {
            // do whatever
        }
        else{
            // do whatever
        }
    });

bind value to checkbox

2 Answers2