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Number of selected rows in the specified TreeView control. This number can be greater than 1 for multi-selection TreeView controls. 0 if no row is selected.
Name of TreeView control to use.A WLanguage error occurs if this parameter does not correspond to the name of a TreeView control.If this parameter corresponds to an empty string (""), the control used will be the TreeView control to which the current event belongs.
Last update: 09/13/2021
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All you have to do is configure your product as follows: