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Returns the fill type of the line.
Use this property to determine whether the line is currently configured with a solid, patterned, or gradient fill.
FillType Type { get; }
ReadOnly Property Type As FillType
IShape connector = worksheet.Shapes.AddConnector(ConnectorType.Straight, 10, 10, 200, 100);
ILineFormat line = connector.Line;
line.Patterned(PatternType.Percent10);
FillType type = line.Type;