# Indeterminate checkbox

### What?

Provides an easy way to toggle a checkbox input's special 'indeterminate' property. This is a visual toggle only and in no way affects the model or value outside of native browser behavior at this time.

Indeterminate:
Toggle indeterminate here:

### Why?

Convenience.

### How?

    Indeterminate: <input type="checkbox" ui-indeterminate="isKnown" readonly>
    Toggle indeterminate here: <input type="checkbox" ng-model="isKnown">