GridListContril and Column Width

[Mark Atkinson]

Using a GridDataBoundGrid with a CellType of "GridListControl", when the drop down list drops down for the first time, the last column is much wider than it needs to be. After that, the column is a reasonable width.

In the CurrentCellShowingDropDown event handler I''ve tried resixing the columns in the drop down grid but that doesn''t seem to work. Also, I''ve seen other posts where it looks like it''s possible to explicitly set the width of the entire (drop down) grid or perhaps even set the width of the last column but I don''t want to set it explicitly - I just want it to be a reasonable size (to fit) when it drops down.

Has anyone seen this behaviour? Any ideas?

[Administrator]

Hi Mark,

You need to use this code in CellButton click and CurrentCellShowing DropDown event. Here is a code snippet.

this.gridDataBoundGrid1.CurrentCell.MoveTo(e.RowIndex,e.ColIndex);
GridCurrentCell cc = this.gridDataBoundGrid1.CurrentCell;
GridDropDownGridListControlCellRenderer cr = cc.Renderer as GridDropDownGridListControlCellRenderer;
if(cr != null)
{
cr.ListControlPart.AllowResizeColumns = false;
int width = cr.ListControlPart.Grid.Model.ColWidths.GetTotal(0, cr.ListControlPart.Grid.Model.ColCount) + 16;
cr.ListControlPart.Grid.Model.ColWidths.ResizeToFit(GridRangeInfo.Table(),GridResizeToFitOptions.IncludeHeaders);
// testing:
cr.ListControlPart.Size= new Size( width,91);
}

Here is a sample.
http://www.syncfusion.com/Support/user/uploads/GridListControlResize_6a92b80a.zip

Let me know if this helps.
Best Regards,
Haneef

[Mark Atkinson]

No, this isn''t quite working for me. But I think I know why.
When the GridListControl drops down, I''m setting some of the columns as hidden (cr.ListControlPart.Grid.Cols.Hidden[columnName] = true)
I think the last column is taking up the slack of the newly hidden columns. Maybe calling ResizeTofit is actually considering the hidden columns in its calculations.

>Using a GridDataBoundGrid with a CellType of "GridListControl", when the drop down list drops down for the first time, the last column is much wider than it needs to be. After that, the column is a reasonable width.
>
>In the CurrentCellShowingDropDown event handler I''ve tried resixing the columns in the drop down grid but that doesn''t seem to work. Also, I''ve seen other posts where it looks like it''s possible to explicitly set the width of the entire (drop down) grid or perhaps even set the width of the last column but I don''t want to set it explicitly - I just want it to be a reasonable size (to fit) when it drops down.
>
>Has anyone seen this behaviour? Any ideas?

[Administrator]

Hi Mark,

Before calling the ColWidths.GetTotal method, you need to set the cols.hidden[index] property to true. Here is a code snippet.

this.gridDataBoundGrid1.CurrentCell.MoveTo(e.RowIndex,e.ColIndex);
GridCurrentCell cc = this.gridDataBoundGrid1.CurrentCell;
GridDropDownGridListControlCellRenderer cr = cc.Renderer as GridDropDownGridListControlCellRenderer;
if(cr != null)
{
cr.ListControlPart.AllowResizeColumns = false;

cr.ListControlPart.Grid.Model.Cols.Hidden[2] = true;
cr.ListControlPart.Grid.Model.Cols.Hidden[3] = true;
int width = cr.ListControlPart.Grid.Model.ColWidths.GetTotal(0, cr.ListControlPart.Grid.Model.ColCount) + 16;
cr.ListControlPart.Grid.Model.ColWidths.ResizeToFit(GridRangeInfo.Table(),GridResizeToFitOptions.IncludeHeaders);
// testing:
cr.ListControlPart.Size=new Size( width, cr.ListControlPart.Size.Height);
}

Here is a modified sample.
http://www.syncfusion.com/Support/user/uploads/GridListControlResize_f6dd038b.zip

Let me know if this helps.
Best Regards,
Haneef