If true, the column will have the "Expand" flag of Control. Columns that have the "Expand" flag will use their "min_width" in a similar fashion to Control.sizeFlagsStretchRatio.
See Implementation
If true, the column will have the "Expand" flag of Control. Columns that have the "Expand" flag will use their "min_width" in a similar fashion to Control.sizeFlagsStretchRatio.