How Enter key behaves for a textbox in the IWindowsFormsEditorService.DropDownControl(userControl)

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I have a custom control with a property Value.

The property grid displays the editor in the dropdown style, using the IWindowsFormsEditorService.DropDownControl(userControl) method within the

MyUITypeEditor.EditValue(...).

The drop down editor has a text box that displays the value.

The entered text is validated in the event handler for Validating event. With this, when enter some text and press Enter key, the dropdown does not close down.

However, if along with Validaing event, I hook onto TextChanged event, then when I hit enter the dropdown closes.

In the editor code, i dont have any code to handle the Enter key.

I am wondering how the DropDownControl(...) internally works by handling the Enter key.

Any explanation is most welcome.

Thanks

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