GC: Click in frozen column to select the whole row

[Richard Bysouth]

Hi

In my grid I would like users to be able to click in any frozen column to select the whole row. I have cols.headcount = -1 as I don't want any row headers. ListBoxSelectionMode is set to None as I would like to retain normal per-cell/cell range selection in the rest of the grid.
I have used the following code yet this only works ok for single row selections - I would like to retain CTRL and SHIFT-selection for rows.
Private Sub GridControl1_CellClick(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Grid.GridCellClickEventArgs) Handles GridControl1.CellClick

Dim grid As GridControl = CType(sender, GridControl)

'clicking in any of the frozen columns should select the whole row
If e.ColIndex > 0 And e.ColIndex < grid.Cols.FrozenCount Then
e.Cancel = True
grid.Model.Selections.Add(GridRangeInfo.Row(e.RowIndex))
End If

End Sub

What do I need to change here?

thanks

Richard

[haneefm]

Hi Richard,

You can try these code snippet.

Private Sub GridControl1_CellClick(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Grid.GridCellClickEventArgs) Handles GridControl1.CellClick
'clicking in any of the frozen columns should select the whole row
If e.ColIndex > 0 And e.ColIndex < GridControl1.Cols.FrozenCount Then
e.Cancel = True
If Control.ModifierKeys() = Keys.Control Then
GridControl1.Model.Selections.Add(oldSelection);
If GridControl1.Model.SelectedRanges.AnyRangeIntersects(GridRangeInfo.Row(e.RowIndex)) Then
GridControl1.Model.Selections.Remove(GridRangeInfo.Row(e.RowIndex))
Else
GridControl1.Model.Selections.Add(GridRangeInfo.Row(e.RowIndex))
End If
ElseIf Control.ModifierKeys() = Keys.Shift Then
GridControl1.Model.Selections.Add(GridRangeInfo.Rows(GridControl1.CurrentCell.MoveFromRowIndex(), e.RowIndex))
Else
GridControl1.Model.Selections.Add(GridRangeInfo.Row(e.RowIndex))
End If
End If
End Sub

Best regards,
Haneef

[Richard Bysouth]

Haneef

What is the variable "oldSelection" in that code snippet? Not sure where this should be defined or where its value is set.

thanks

Richard

[haneefm]

Hi Richard,

Here is a minimal sample that shows you "How to implement the MultiExtend selection behavior in grid when you click on the frozen column?"
GridStyleSample.zip

Best regards,
Haneef