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I want to use a two way binding for a checkbox, but if I use the [(ngModel)] it is showing true or false instead of the value of the checked item. Does anybody know how this is done?

If i want to use a two way binding and set it to "expression.value" in my case how do i do that: 

<input type="checkbox" type="checkbox"/>&nbsp;Option 1</a></li>

I would like to bind the value of the checkbox in this case: Option 1 into the expression class.

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  • Dup of stackoverflow.com/questions/34872843/… Commented Apr 11, 2016 at 9:16
  • I updated my answer. It takes into account that expression might not yet be set when when Angular tries to resolve the binding. Commented Apr 11, 2016 at 9:36

1 Answer 1

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This is a known issue

There are different workarounds like using event.target.checked instead of the value from the model.

You can use

<input type="checkbox"  
    (change)="expression && expression.Option1=$event.target.checked ? true : undefiend"
    [ngModel]="expression?.Option1">
<input type="checkbox"  
    (change)="expression && expression.Option2=$event.target.checked ? true : undefiend"
    [ngModel]="expression?.Option2">

Plunker example

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12 Comments

As you can see it is logging the event itself: i66.tinypic.com/2qd4z6t.png
I updated the answer. I mentioned it in the text but forgot to update the code.
It is logging value: "on" and not Option1 in my case
Sorry, It should be $event.target.checked
Wait i think you do not understand what my goal is. I have got multiple checkboxes Option1, option2 etc I want to bind the checked Option into my expression class. So that if i log the value of the checked items I see the label of the checked Option1, Option2
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