1 Answer, 1 is accepted
Hello, Jure,
I would like to note that when you click a cell for the first time, the row gets selected (GridViewSelectionMode.FullRowSelect). If you click again the same cell, it is expected to enter edit mode. Hence, the row remains selected.
If you need to deselect the already selected row after clicking it, you need to customize this desired behavior. RadGridView manages user mouse and keyboard input over its rows by GridRowBehavior. Depending on the row type, RadGridView introduces different behaviors:
https://docs.telerik.com/devtools/winforms/controls/gridview/rows/row-behaviors
I have prepared a sample code snippet for your reference which result is illustrated in the attached gif file:
public RadForm1()
{
InitializeComponent();
this.radGridView1.Columns.Add("Id");
this.radGridView1.Columns.Add("Name");
this.radGridView1.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
for (int i = 0; i < 10; i++)
{
this.radGridView1.Rows.Add(i, Guid.NewGuid().ToString());
}
this.radGridView1.MultiSelect = false;
this.radGridView1.SelectionMode = GridViewSelectionMode.FullRowSelect;
//register the custom row behavior
BaseGridBehavior gridBehavior = radGridView1.GridBehavior as BaseGridBehavior;
gridBehavior.UnregisterBehavior(typeof(GridViewDataRowInfo));
gridBehavior.RegisterBehavior(typeof(GridViewDataRowInfo), new CustomGridDataRowBehavior());
}
public class CustomGridDataRowBehavior : GridDataRowBehavior
{
bool isSelected = false;
protected override bool OnMouseDownLeft(MouseEventArgs e)
{
GridCellElement cellUnderMouse = this.GridViewElement.ElementTree.GetElementAtPoint(e.Location) as GridCellElement;
if (cellUnderMouse != null)
{
isSelected = cellUnderMouse.RowInfo.IsSelected;
}
return base.OnMouseDownLeft(e);
}
protected override bool OnMouseUpLeft(MouseEventArgs e)
{
GridCellElement cellUnderMouse = this.GridViewElement.ElementTree.GetElementAtPoint(e.Location) as GridCellElement;
bool result = base.OnMouseUpLeft(e);
if (this.GridViewElement.ActiveEditor != null)
{
this.GridViewElement.CloseEditor();
}
if (cellUnderMouse != null)
{
if (isSelected == cellUnderMouse.RowInfo.IsSelected)
{
cellUnderMouse.RowInfo.IsSelected = !cellUnderMouse.RowInfo.IsSelected;
if (!cellUnderMouse.RowInfo.IsSelected)
{
cellUnderMouse.RowInfo.IsCurrent = false;
}
}
}
return result;
}
}Regards,
Dess | Tech Support Engineer, Principal
Progress Telerik
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