public bool IsCurrent(GridCell gridCell)
{
var index = VerifyGridCell(gridCell, nameof(gridCell));
if (!gridCell.IsKeyboardFocusWithin && DataPresenter.View.IsKeyboardFocusWithin) // Another element in DataView has keyboard focus
{
return(false);
}
return(CurrentBindingIndex == index && gridCell.GetRowPresenter() == CurrentRow);
}
public bool IsSelected(GridCell gridCell)
{
if (DataPresenter.SelectedRows.Count > 0)
{
return(gridCell.GetRowPresenter().IsSelected);
}
if (Mode == GridCellMode.Edit)
{
return(SelectFullRowInEditMode && gridCell.GetRowPresenter().IsCurrent);
}
if (CurrentBindingIndex < 0)
{
return(false);
}
var bindingIndex = VerifyGridCell(gridCell, nameof(gridCell));
return(IsBindingSelected(bindingIndex) && IsRowSelected(gridCell.GetRowPresenter().Index));
}
public void Select(GridCell gridCell, bool isExtended)
{
if (Mode != GridCellMode.Select)
{
throw new InvalidOperationException(DiagnosticMessages.GridCell_Presenter_SelectionNotAllowedInEditMode);
}
var bindingIndex = VerifyGridCell(gridCell, nameof(gridCell));
SuspendInvalidateView();
DeselectAllRows();
if (CurrentBindingIndex == -1)
{
CurrentBindingIndex = bindingIndex;
}
if (isExtended)
{
_extendedBindingSelection += CurrentBindingIndex - bindingIndex;
_extendedRowSelection += CurrentRow.Index - gridCell.GetRowPresenter().Index;
}
else
{
ClearExtendedSelection();
}
if (!gridCell.IsKeyboardFocusWithin)
{
_isExtendedSelectionLocked = true;
try
{
gridCell.Focus();
}
finally
{
_isExtendedSelectionLocked = false;
}
}
Debug.Assert(CurrentBindingIndex == bindingIndex);
InvalidateView();
ResumeInvalidateView();
}
