Gets the column's width. This is a dependency property.
A Double value that specifies the column's width, in pixels.
Column widths can be changed automatically, so that the total columns' width matches the grid's width. In this instance, changing the width of one column automatically changes the widths of other columns. This behavior is controlled by the view's TableView.AutoWidth property. To obtain the actual width of columns, use their ActualWidth property.
To learn more, see Columns Layout and Width.