System.Windows.Forms 2.0.0.0 System.EventArgs Use data from the method to make decisions about actions to take when a drop-down control closes. Provides data for the event. Constructor Use the constructor to make decisions about actions to take when a drop-down control closes for the specified reason. Initializes a new instance of the class. One of the values. 2.0.0.0 Property System.Windows.Forms.ToolStripDropDownCloseReason To be added. To be added. Gets the reason that the closed. 2.0.0.0