System.Windows.Forms 2.0.0.0 System.EventArgs To be added. Provides data for the event. Constructor You can determine the column whose width is being change by checking the property. Initializes a new instance of the class. The index of the column whose width is being changed. 2.0.0.0 Property System.Int32 To be added. To be added. Gets the column index for the column whose width is being changed. 2.0.0.0