Hi,

There are few ways to auto resize the columns present in a WebGrid.

1) The TableLayout property in the DisplayLayout can be set to "Auto". This property can be set either in Design Mode or in Code Behind. Here is the line of code:

this.UltraWebGrid1.DisplayLayout.TableLayout = Infragistics.WebUI.UltraWebGrid.TableLayout.Auto;

2) The PerformAutoResizeColumns method can be used as follows,

this.ultraGrid1.DisplayLayout.PerformAutoResizeColumns(false, PerformAutoSizeType.VisibleRows);

3) This also can be done using JavaScript. Please refer to this forum thread

http://forums.infragistics.com/forums/t/4650.aspx

The WinGrid has a set up to make the last column to be extended. In the WebGrid, this feature is not available through a direct property set up. But I'm sure the width of the last column can be set manually to achieve the functionality.

Hope this helps.

Thanks