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prevent combobox cell from dropping down

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22932 Dec 29,2004 06:12 PM UTC Dec 29,2004 07:04 PM UTC WinForms 2
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Tags: GridControl
Jeff Lancaster
Asked On December 29, 2004 06:12 PM UTC

I have a databound grid which contains a GridBoundColumn which I initialize with a CellType of "ComboBox". I then set the DataSource, DisplayMember, and ValueMember in order to display the proper value in the cell. For certain rows, however, I need to set the cells to readonly which I do by setting e.Style.ReadOnly = True in the grid.model.QueryCellInfo routine. Although this prevents the user from selecting a different choice it does not prevent the combobox from displaying the drop down. I tried setting e.Style.CellType = "Static" for these cells in PrepareViewStyleInfo, however this caused the cell to no longer display the DisplayMember. Is there a way to retain the properties of the ComboBox cell while dynamically preventing it from showing the dropdown?

Administrator [Syncfusion]
Replied On December 29, 2004 06:35 PM UTC

You can handle the grid.CurrentCellShowingDropDown event and cancel it if the currentcell is readonly.
private void gridControl1_CurrentCellShowingDropDown(object sender, GridCurrentCellShowingDropDownEventArgs e)
{
	GridCurrentCell cc = this.gridControl1.CurrentCell;
	if(this.gridControl1[cc.RowIndex, cc.ColIndex].ReadOnly)
		e.Cancel = true;
}

Jeff Lancaster
Replied On December 29, 2004 07:04 PM UTC

Excellent! Thanks Clay.

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