private void EndUpdateCTreeView()
{
if (OwnerCTreeView != null)
{
OwnerCTreeView.EndUpdate();
}
}
private void BeginUpdateCTreeView()
{
if (OwnerCTreeView != null)
{
OwnerCTreeView.BeginUpdate();
}
}
/// <summary>
/// Raises the SelectNode event.
/// </summary>
/// <param name="e">A CTreeViewEventArgs that contains the event data</param>
protected internal virtual void OnSelectNode(CTreeViewEventArgs e)
{
//ParentCTreeView.Invalidate();
//ParentCTreeView.Update();
OwnerCTreeView.Refresh();
if (SelectNode != null)
{
SelectNode(this, e);
}
}
/// <summary>
/// Expands the tree node.
/// </summary>
public void Expand()
{
IsExpanded = true;
//if (Visible) foreach (CTreeNode child in Nodes) child.Visible = true;
//Nodes.TraverseNodes(node => node.ParentNode.IsExpanded, node => { node.IsShown = true; });
if (OwnerCTreeView != null)
{
OwnerCTreeView.OnExpandNode(new CTreeViewEventArgs(this));
}
}
/// <summary>
/// Collapses the tree node.
/// </summary>
public void Collapse()
{
IsExpanded = false;
//foreach (CTreeNode child in Nodes) child.Visible = false;
//Nodes.TraverseNodes(node => node.IsShown, node => { node.IsShown = false; });
if (OwnerCTreeView != null)
{
OwnerCTreeView.OnCollapseNode(new CTreeViewEventArgs(this));
}
}
/// <summary>
///
/// </summary>
public void Drag()
{
if (OwnerCTreeView.DragAndDropMode != CTreeViewDragAndDropMode.Nothing && IsSelected)
{
//Checking that all selected nodes has same parent
bool checkSameParent = true;
foreach (CTreeNode selectedNode in OwnerCTreeView.SelectedNodes)
{
if (selectedNode.ParentNode != OwnerCTreeView.SelectedNodes[0].ParentNode)
{
checkSameParent = false;
}
}
//Prepare and sort the dragged nodes
if (checkSameParent)
{
List <CTreeNode> draggedNodes = new List <CTreeNode>(OwnerCTreeView.SelectedNodes);
draggedNodes.Sort((node1, node2) => node1.Index - node2.Index);
OwnerCTreeView.DoDragDrop(draggedNodes, DragDropEffects.All);
}
}
}
