Make the selection arrow to the left of a row in a GridGroupingControl disappear programmatically.

[José Manuel]

Hello, everybody,

I have two GridGroupingControl's and a single detail panel where I show detailed information about the selected row, no matter which GridGroupingControl it belongs to.

I want to use the standard black arrow to the left of a row to mark the row for which I'm giving detailed information (see picture), and I want to be only one arrow, not one for each grid.

For that purpose, I need to make the arrow in a grid disappear when a row in the other grid is clicked; programmatically.

I don't know what events/objects allow to control selection arrow.

I've tried GridGroupingControl.TableControl.CurrentCell.Deactivate() to make the arrow go, but it doesn't work.

Any advice?

Thank you very much.
Jose Manuel

arrow.zip

[Administrator]

One way you can do this is to subscribe to the Enter and Leave events on the grids, and there toggle the row header cell types between Header (shows no arrow) and RowHeaderCell (shows the arrow).

            this.gridGroupingControl1.Leave += new EventHandler(grid_Leave);
            this.gridGroupingControl1.Enter += new EventHandler(grid_Enter);
            this.gridGroupingControl2.Leave += new EventHandler(grid_Leave);
            this.gridGroupingControl2.Enter += new EventHandler(grid_Enter);

//the handlers
        void grid_Enter(object sender, EventArgs e)
        {
            GridGroupingControl grid = sender as GridGroupingControl;
            if (grid != null)
            {
                grid.Appearance.RecordRowHeaderCell.CellType = "RowHeaderCell";
                grid.Appearance.AlternateRecordRowHeaderCell.CellType = "RowHeaderCell";
            }
        }

        void grid_Leave(object sender, EventArgs e)
        {
            GridGroupingControl grid = sender as GridGroupingControl;
            if (grid != null)
            {
                grid.Appearance.RecordRowHeaderCell.CellType = "Header";
                grid.Appearance.AlternateRecordRowHeaderCell.CellType = "Header";
            }
        }