/// <summary>
/// Links the specified tree view to this tree view. Whenever either treeview
/// scrolls, the other will scroll too.
/// </summary>
/// <param name="treeView">The TreeView to link.</param>
public void AddLinkedTreeView(LinkableTreeView treeView)
{
if (treeView == this)
throw new ArgumentException("Cannot link a TreeView to itself!", "treeView");
if (!linkedTreeViews.Contains(treeView))
{
//add the treeview to our list of linked treeviews
linkedTreeViews.Add(treeView);
//add this to the treeview's list of linked treeviews
treeView.AddLinkedTreeView(this);
//make sure the TreeView is linked to all of the other TreeViews that this TreeView is linked to
for (int i = 0; i < linkedTreeViews.Count; i++)
{
//get the linked treeview
var linkedTreeView = linkedTreeViews[i];
//link the treeviews together
if (linkedTreeView != treeView)
linkedTreeView.AddLinkedTreeView(treeView);
}
}
}
/// <summary>
/// Sets the destination's scroll positions to that of the source.
/// </summary>
/// <param name="source">The source of the scroll positions.</param>
/// <param name="dest">The destinations to set the scroll positions for.</param>
private void SetScrollPositions(LinkableTreeView source, LinkableTreeView dest)
{
//get the scroll positions of the source
int horizontal = User32.GetScrollPos(source.Handle, Orientation.Horizontal);
int vertical = User32.GetScrollPos(source.Handle, Orientation.Vertical);
//set the scroll positions of the destination
User32.SetScrollPos(dest.Handle, Orientation.Horizontal, horizontal, true);
User32.SetScrollPos(dest.Handle, Orientation.Vertical, vertical, true);
}