How do I set the width of a column in the WinForms GridDataBoundGrid?

You need to do two things in order to change the width of the columns in GridDataBoundGrid.

• First, you need to set the property grid.AllowResizeToFit to False. This can be done once in the form’s constructor or Form.Load event. It turns off the grid’s default sizing behavior so your explicit sizing will work. Otherwise, the default sizing takes precedence. The default sizing uses the width of the header text to size the columns.
• Second, explicitly set the width of the particular column by passing the column index in the ColWidths property.

C#

//set size of column 3 to 250

this.gridDataBoundGrid1.AllowResizeToFit = false;

this.gridDataBoundGrid1.Model.ColWidths[3] = 250;

VB

'set size of column 3 to 150

Me.GridDataBoundGrid1.AllowResizeToFit = False

Me.GridDataBoundGrid1.Model.ColWidths(3) = 250