GcSpreadSheet1.Sheets[0].SelectionPolicy = GrapeCity.Xaml.SpreadSheet.Data.SelectionPolicy.MultiRange;
GcSpreadSheet1.CanTouchMultiSelect = true;
GcSpreadSheet1.Sheets[0].TouchSelectionGripperBackgroundColor = Windows.UI.Colors.Red;
//GcSpreadSheet1.Sheets[0].TouchSelectionGripperBackgroundThemeColor = "Accent 3 40";
//GcSpreadSheet1.Sheets[0].ResetTouchSelectionGripperBackgroundColor();
//GcSpreadSheet1.Sheets[0].ResetTouchSelectionGripperBackgroundThemeColor();
GcSpreadSheet1.Sheets(0).SelectionPolicy = GrapeCity.Xaml.SpreadSheet.Data.SelectionPolicy.MultiRange
GcSpreadSheet1.CanTouchMultiSelect = True
GcSpreadSheet1.Sheets(0).TouchSelectionGripperBackgroundColor = Windows.UI.Colors.Red
'GcSpreadSheet1.Sheets(0).TouchSelectionGripperBackgroundThemeColor = "Accent 3 40"
'GcSpreadSheet1.Sheets(0).ResetTouchSelectionGripperBackgroundColor()
'GcSpreadSheet1.Sheets(0).ResetTouchSelectionGripperBackgroundThemeColor()