Windows Form Changes from 1.0 to 1.1 of the Framework

The following are some of the differences between versions 1.0 and 1.1 of the framework that relate to Windows forms:

• Calling Form.Close in the Load event of a modal form now closes the form.

• The Validating event no longer fires twice when closing a form.

• Adding a nonserializable object to the Clipboard now generates an exception.

• The ListView object no longer fires the MouseUp event when the ListItem is dragged.

• The TreeView object raises the MouseUp event correctly when the mouse button is released.

• The TrackBar control now raises ValueChangedEvents when the value is changed via the mouse scroll wheel.

• Setting the DataSource property of a ListBox or ComboBox to Null will now clear the contents of the control.

• A data-bound ComboBox with its DropDownStyle property set to DropDownList now finds items by programmatically setting the Text property.

• When a form is closed, the Validating event does not fire for the control that has focus if that control is in a UserControl.