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- Node to expand
- Selection bar
Expands a node in a TreeView control. The "child" elements (nodes or leaves) of this node become visible. Example of TreeView control:
Reminder At runtime, a node is unrolled when the "-" sign precedes the node name. // Expand the "Desserts" node in the "TREE_TVRecipe" TreeView control
Res = TreeExpand(TREE_TVRecipe, "Recipes" + TAB + "Desserts")
Sintaxis
<Result> = TreeExpand(<TreeView control> , <Node to expand>)
<Result>: Boolean - True if the node was expanded,
- False otherwise.
<TreeView control>: Control name Name of the TreeView control to be used. <Node to expand>: Character string Path of node to expand. This parameter has the following format:
"<Root name>" + TAB + ["<Name of 1st node>" + TAB + ...
["<Name of 2nd node>" + TAB + [...]]]"<Leaf name>" Observaciones Node to expand If the node to expand: - is not found, TreeExpand returns False.
- is a leaf, TreeExpand returns True.
- is already expanded, TreeExpand returns True.
- is not visible, TreeExpand makes this node visible. Its "parent" and "sibling" elements are also displayed. The "parent" elements are expanded.
When TreeExpand is called, if the specified branch has a procedure associated via the AddChildDelayed property, this procedure will be executed.Selection bar TreeExpand does not change the position of the selection bar.
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