Hi Ephem,
Thanks for your interest in Syncfusion Products.
In case of the GridDataBoundGrid, by default, the grid will resize its columns accordingly to text in the column. Please try calling the ResizeToFit method after setting format properties in load event.
+++++++ Code Snippet +++++++++
this.gridDataBoundGrid1.AllowResizeToFit = false;
this.gridDataBoundGrid1.Model.ColWidths.ResizeToFit(this.gridDataBoundGrid1.ViewLayout.VisibleCellsRange, Syncfusion.Windows.Forms.Grid.GridResizeToFitOptions.IncludeHeaders);
+++++++ Code Snippet +++++++++
Sample:
http://websamples.syncfusion.com/samples/kb/grid.windows/GDBGColwidth/main.htmPlease let me know am I missing anything.
Regards,
Nisha