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HasLines Property

The HasLines property specifies whether or not tree lines are drawn in a TreeView object. It is a single integer with the value 0, 1 or 2:

0 No tree lines
1 Tree lines are drawn at all levels except the top level
2 Tree lines are drawn at all levels

The user can cause a parent item to expand or collapse by clicking on its corresponding tree line.

Application

Objects: TreeView