datagrid.columns(yourColumn).autosizemode = fill

数据表 - 你不能改变列的宽度





DatagridView - 看看这里：

DataGridView.AutoSizeColumnsMode Property [ ^ ]

DataGridViewColumn.Width属性 [ ^ ]

Datatable - you can't change width of column


DatagridView - have a look here:
DataGridView.AutoSizeColumnsMode Property [^]
DataGridViewColumn.Width Property[^]