Message in Portuguese (Brazil) (Português (Brasil))
As SortDescriptions adicionadas não são válidas. Soluções prováveis: definir CanUserSort na Coluna como false, usar a propriedade SortMemberPath na Coluna ou tratar o evento Sorting em DataGrid.
Unlocalized message
The SortDescriptions added are not valid. The probable solutions are to set the CanUserSort on the Column to false, or to use SortMemberPath property on the Column, or to handle the Sorting event on DataGrid.
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