[]
Gets or sets whether the equation for the trendline is displayed on the chart.
bool DisplayEquation { get; set; }
Property DisplayEquation As Boolean
worksheet.Range["A1:A4"].Value = new object[] { 10, 20, 30, 40 };
IShape shape = worksheet.Shapes.AddChart(ChartType.ColumnClustered, 20, 20, 360, 220);
shape.Chart.SeriesCollection.Add(worksheet.Range["A1:A4"], RowCol.Columns);
ITrendline trendline = shape.Chart.SeriesCollection[0].Trendlines.Add();
trendline.DisplayEquation = true;
bool displayEquation = trendline.DisplayEquation;