is there any editable combobox in GWT?

I want to add editable combo 开发者_高级运维box in GWT , so please tell me the solution ?

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Try the Advanced GWT Components, specifically

org.gwt.advanced.client.ui.widget.ComboBox

You can see them in action at the demo page here, just select the Text & Button Widgets tab and have look at the source code behind it.