ComboBox in Virtual Grid

I''m trying to use a combobox in a virtual grid with code like this in the QueryCellInfo event: e.Style.CellType = "ComboBox"; StringCollection sc = new StringCollection(); sc.Add("A"); sc.Add("B"); sc.Add("C"); e.Style.ChoiceList = sc; e.Style.DropDownStyle = GridDropDownStyle.Exclusive; e.Handled = true; The cell looks like a combobox but I just can''t seem to get it to activate. When I click on it I get no dropdown list. I''ve looked at all the likely properties of the grid (enabled, readonly, etc.) but to no avail.

Hi Ken, That has to work, please check out the same implementation in this sample. Best regards, Stanley

The sample works fine. Maybe the problem is in the code generated by the designer - here it is: // // vgStationCounters // this.vgStationCounters.AllowSelection = Syncfusion.Windows.Forms.Grid.GridSelectionFlags.Cell; this.vgStationCounters.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right))); this.vgStationCounters.BackColor = System.Drawing.SystemColors.ControlText; gridBaseStyle1.Name = "Header"; gridBaseStyle1.StyleInfo.Borders.Bottom = new Syncfusion.Windows.Forms.Grid.GridBorder(Syncfusion.Windows.Forms.Grid.GridBorderStyle.None); gridBaseStyle1.StyleInfo.Borders.Left = new Syncfusion.Windows.Forms.Grid.GridBorder(Syncfusion.Windows.Forms.Grid.GridBorderStyle.None); gridBaseStyle1.StyleInfo.Borders.Right = new Syncfusion.Windows.Forms.Grid.GridBorder(Syncfusion.Windows.Forms.Grid.GridBorderStyle.None); gridBaseStyle1.StyleInfo.Borders.Top = new Syncfusion.Windows.Forms.Grid.GridBorder(Syncfusion.Windows.Forms.Grid.GridBorderStyle.None); gridBaseStyle1.StyleInfo.CellType = "Header"; gridBaseStyle1.StyleInfo.Font.Bold = true; gridBaseStyle1.StyleInfo.Interior = new Syncfusion.Drawing.BrushInfo(Syncfusion.Drawing.GradientStyle.Vertical, System.Drawing.Color.FromArgb(((System.Byte)(203)), ((System.Byte)(199)), ((System.Byte)(184))), System.Drawing.Color.FromArgb(((System.Byte)(238)), ((System.Byte)(234)), ((System.Byte)(216)))); gridBaseStyle1.StyleInfo.VerticalAlignment = Syncfusion.Windows.Forms.Grid.GridVerticalAlignment.Middle; gridBaseStyle2.Name = "Column Header"; gridBaseStyle2.StyleInfo.BaseStyle = "Header"; gridBaseStyle2.StyleInfo.HorizontalAlignment = Syncfusion.Windows.Forms.Grid.GridHorizontalAlignment.Center; gridBaseStyle3.Name = "Row Header"; gridBaseStyle3.StyleInfo.BaseStyle = "Header"; gridBaseStyle3.StyleInfo.HorizontalAlignment = Syncfusion.Windows.Forms.Grid.GridHorizontalAlignment.Left; gridBaseStyle3.StyleInfo.Interior = new Syncfusion.Drawing.BrushInfo(Syncfusion.Drawing.GradientStyle.Horizontal, System.Drawing.Color.FromArgb(((System.Byte)(203)), ((System.Byte)(199)), ((System.Byte)(184))), System.Drawing.Color.FromArgb(((System.Byte)(238)), ((System.Byte)(234)), ((System.Byte)(216)))); gridBaseStyle4.Name = "Standard"; gridBaseStyle4.StyleInfo.Font.Facename = "Tahoma"; gridBaseStyle4.StyleInfo.Font.Size = 11F; gridBaseStyle4.StyleInfo.Interior = new Syncfusion.Drawing.BrushInfo(System.Drawing.Color.Black); gridBaseStyle4.StyleInfo.TextColor = System.Drawing.Color.FromArgb(((System.Byte)(224)), ((System.Byte)(224)), ((System.Byte)(224))); this.vgStationCounters.BaseStylesMap.AddRange(new Syncfusion.Windows.Forms.Grid.GridBaseStyle[] { gridBaseStyle1, gridBaseStyle2, gridBaseStyle3, gridBaseStyle4}); this.vgStationCounters.ColCount = 0; this.vgStationCounters.ColWidthEntries.AddRange(new Syncfusion.Windows.Forms.Grid.GridColWidth[] { new Syncfusion.Windows.Forms.Grid.GridColWidth(0, 35)}); this.vgStationCounters.EnterKeyBehavior = Syncfusion.Windows.Forms.Grid.GridDirectionType.None; this.vgStationCounters.ForeColor = System.Drawing.SystemColors.Control; this.vgStationCounters.Location = new System.Drawing.Point(200, 40); this.vgStationCounters.Name = "vgStationCounters"; this.vgStationCounters.Properties.BackgroundColor = System.Drawing.Color.Black; this.vgStationCounters.RowCount = 0; this.vgStationCounters.SelectCellsMouseButtonsMask = System.Windows.Forms.MouseButtons.None; this.vgStationCounters.Size = new System.Drawing.Size(568, 96); this.vgStationCounters.SmartSizeBox = false; this.vgStationCounters.TabIndex = 13; this.vgStationCounters.Text = "gridControl1"; this.vgStationCounters.QueryColCount += new Syncfusion.Windows.Forms.Grid.GridRowColCountEventHandler(this.vgStationCounters_QueryColCount); this.vgStationCounters.QueryColWidth += new Syncfusion.Windows.Forms.Grid.GridRowColSizeEventHandler(this.vgStationCounters_QueryColWidth); this.vgStationCounters.QueryRowCount += new Syncfusion.Windows.Forms.Grid.GridRowColCountEventHandler(this.vgStationCounters_QueryRowCount); this.vgStationCounters.QueryCellInfo += new Syncfusion.Windows.Forms.Grid.GridQueryCellInfoEventHandler(this.vgStationCounters_QueryCellInfo); this.vgStationCounters.SaveCellInfo += new Syncfusion.Windows.Forms.Grid.GridSaveCellInfoEventHandler(this.vgStationCounters_SaveCellInfo); this.vgStationCounters.QueryRowHeight += new Syncfusion.Windows.Forms.Grid.GridRowColSizeEventHandler(this.vgStationCounters_QueryRowHeight);

Hi Ken, Please comment out this code. this.vgStationCounters.SelectCellsMouseButtonsMask = System.Windows.Forms.MouseButtons.None; Best regards, Stanley

Thanks - that did the trick.