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private void gridGroupingControl1_TableControlCurrentCellControlKeyMessage(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridTableControlCurrentCellControlKeyMessageEventArgs e) { Keys keyCode = (Keys) ((int)e.Inner.Msg.WParam) & Keys.KeyCode; if(e.Inner.Msg.Msg == 0x100 && keyCode == Keys.V && 0 != (Control.ModifierKeys & Keys.Control)) { GridTextBoxCellRenderer cr = e.TableControl.CurrentCell.Renderer as GridTextBoxCellRenderer; if(cr != null && cr.TextBox.Text.Length == cr.TextBox.SelectionLength) { if(Clipboard.GetDataObject().GetDataPresent(typeof(string))) { string s = (string)Clipboard.GetDataObject().GetData(typeof(string)); cr.TextBox.SelectedText = s; e.Inner.Handled = true; e.Inner.Result = true; } } } }
cr.TextBox.SelectedText = s;
Try
cr.TextBox.SelectedAll();
cr.TextBox.SelectedText = s;