By default, the AllowSizing property is True. Use the AllowSizing property to fix the column's width. Use the ColumnAutoResize property of the control to fit the visible columns to the control's client area. Use the AllowSort property to avoid sorting a column when the user clicks the column's header. Use the AllowDragging property to specify whether the user can click the column's header and drag it to another position. Use the Width property to specify the column's width, at runtime. Use the ColumnsAllowSizing property to allow resizing the columns, when the control's header bar is not visible.