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Gets or sets the text orientation of the chart title.
The returned value is the rotation angle of the chart title text, in degrees.
int Orientation { get; set; }
Property Orientation As Integer
IChart chart = worksheet.Shapes.AddChart(ChartType.ColumnClustered, 20, 20, 300, 200).Chart;
chart.ChartTitle.Text = "Sales Analysis";
chart.ChartTitle.Orientation = 45;
int orientation = chart.ChartTitle.Orientation;