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Check for Multiple Selected Rows
This tip was submitted by Charles Ginzel.

Often times you need to have functionality enabled dependent on the number of rows selected in a datawindow (e.g. multi-selecting and deleting rows is usually valid, but multi-selecting and editing may not be). Below is a quick and easy way to determine if more than one row is currently selected within a datawindow.

// only allow copy to be enabled when a single row is selected
m_copy.Enabled = ldw.GetSelectedRow( ldw.GetSelectedRow( 0 ) ) = 0

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