[]
Gets the parent IShape that contains the chart.
Use this property to access the shape object that hosts the chart, such as when you need to work with the chart through the worksheet's shape collection.
IShape Parent { get; }
ReadOnly Property Parent As IShape
IChart chart = worksheet.Shapes.AddChart(ChartType.ColumnClustered, 20, 20, 300, 200).Chart;
IShape parent = chart.Parent;