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Checkbox on mousedown only

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14792 Jun 4,2004 06:08 AM Jun 4,2004 06:45 AM Windows Forms 1
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Tags: GridControl
Administrator [Syncfusion]
Asked On June 4, 2004 06:08 AM

I was comparing the checkbox functionality on a standard listview and it checks the box on the mouse down and not the combination of the mouse down and mouse up. Is there anyway to make the grid controls checkbox behave the same way.

Administrator [Syncfusion]
Replied On June 4, 2004 06:45 AM

The standard windows forms checkbox changes the check on mouseup. If you want change it on MouseDown, then you can try the event handler below. But there maybe undesired consequences of doing so. For example, if you mousedown on a checkbox and drag to select a range of cells, the checkbox changes. (ListView does not support this I assume.)
private void gridControl1_GridControlMouseDown(object sender, CancelMouseEventArgs e)
{
	Point pt = new Point(e.MouseEventArgs.X, e.MouseEventArgs.Y);
	int row, col;
	if(this.gridControl1.PointToRowCol(pt, out row, out col, -1))
	{
		if(this.gridControl1[row, col].CellType == "CheckBox")
		{
			if(this.gridControl1[row, col].Text == this.gridControl1[row, col].CheckBoxOptions.CheckedValue)
				this.gridControl1[row, col].Text = this.gridControl1[row, col].CheckBoxOptions.UncheckedValue;
			else
				this.gridControl1[row, col].Text = this.gridControl1[row, col].CheckBoxOptions.CheckedValue;
	        this.gridControl1.CurrentCell.MoveTo(row, col);
			e.Cancel = true;
		}
	}
}

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