void treeView1_MouseDoubleClick(object sender, MouseEventArgs e)
{
TreeNode tn = treeView1.GetNodeAt(e.Location);
if (tn == null || tn.Tag == null)
{
return;
}
enumCatalogItemType cType = GetCatalogItemType(tn.Tag as ICatalogItem);
if (cType == _selectableType)
{
_selectedCatalogItem = tn.Tag as ICatalogItem;
if (OnCatalogItemDoubleClicked != null)
{
OnCatalogItemDoubleClicked(this, tn.Tag as ICatalogItem);
}
}
}
void treeView1_MouseDown(object sender, MouseEventArgs e)
{
_selectedCatalogItem = null;
TreeNode tn = treeView1.GetNodeAt(e.Location);
treeView1.SelectedNode = tn;
if (tn != null && tn.Tag != null)
{
(tn.Tag as CatalogItem).LoadChildren();
if (_preNode == null || !_preNode.Equals(tn))
{
enumCatalogItemType cType = GetCatalogItemType(tn.Tag as ICatalogItem);
if (cType == _selectableType)
{
_selectedCatalogItem = (tn.Tag as ICatalogItem);
if (OnSelectedCatalogItemChanged != null)
{
OnSelectedCatalogItemChanged(this, tn.Tag as ICatalogItem);
}
}
}
_preNode = tn;
}
}
