private Forms::DragDropEffects GetEffect_Node(TreeTreeNode <T> _dst, TreeNode src, Forms::DragDropEffects mask)
{
TreeTreeNode <T> _src = src as TreeTreeNode <T>;
if (_src == null)
{
return(Forms::DragDropEffects.None);
}
mask &= _src.DragEffectToTreeNode;
if (_src.IsDescendant(_dst) || _src == _dst)
{
mask &= ~Forms::DragDropEffects.Move;
}
return(mask);
}
private Forms::DragDropEffects GetEffect_List(TreeTreeNode <T> _dst, Gen::List <TreeNode> list, Forms::DragDropEffects mask)
{
foreach (TreeNode node2 in list)
{
TreeTreeNode <T> _src = node2 as TreeTreeNode <T>;
if (_src == null)
{
return(Forms::DragDropEffects.None);
}
mask &= _src.DragEffectToTreeNode;
if (_src.IsDescendant(_dst) || _src == _dst)
{
mask &= ~Forms::DragDropEffects.Move;
}
}
return(mask);
}