GridView - FindPanel - How to override the default exclude logic

By default, the '-' and '+' signs are special. For example, a string preceded with a dash "-" is excluded from the result set. If you want to override this logic and use these signs not as special symbols but as regular ones, create a custom grid (How to create a GridView descendant class and register it for design-time use) and override the GridView.ConvertGridFilterToDataFilter method. In this example, the '+' and '-' signs are recognized as regular ones (i.e., not as special symbols).

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Find Panel