private void onMouseDown(object sender, MouseEventArgs e)
{
this.DoWithinExceptionHandler(() =>
{
var hitInfo = _treeView.CalcHitInfo(e.Location);
if (hitInfo == null)
{
return;
}
if (hitInfo.Node == null)
{
return;
}
var treeNode = _treeView.NodeFrom(hitInfo.Node);
if (treeNode.IsAnImplementationOf <HierarchicalStructureNode>() && e.Button.Equals(MouseButtons.Left))
{
HierarchicalStructureNode node = (HierarchicalStructureNode)treeNode;
var dragItem = _presenter.GetReferenceObjectFrom(node.Tag);
if (dragItem != null)
{
DoDragDrop(dragItem, DragDropEffects.Copy);
}
}
});
}
private ITreeNode nodeFrom(TreeListNode treeListNode)
{
return(_treeView.NodeFrom(treeListNode));
}