<p>I have a ComboBox that I bind to a standard HTTPService, I would like to add an event listener so that I can run some code after the ComboBox is populated from the data provider.</p>

<p>How can I do this?</p>

You can use
```
BindingUtils
```
to get notified when the
```
dataProvider
```
property of the combo box changes:
```
```
BindingUtils.bindSetter(comboBoxDataProviderChanged, comboBox, "dataProvider");
```
```
```
BindingUtils
```
lives in the
```
mx.binding.utils
```
package.
I have a longer description of how to work with
```
BindingUtils
```
here:
Does painless programmatic data binding exist?