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Gets the ITextFrame object that contains the text frame settings of the chart title.
ITextFrame TextFrame { get; }
ReadOnly Property TextFrame As ITextFrame
IChart chart = worksheet.Shapes.AddChart(ChartType.ColumnClustered, 20, 20, 300, 200).Chart;
chart.ChartTitle.Text = "Sales Analysis";
IChartTitle title = chart.ChartTitle;
ITextFrame textFrame = title.TextFrame;
textFrame.TextRange.Text = "Quarterly Sales";