Data plotted on a chart.
The ChartData instance is usually created from data located in the spreadsheet cells using the static ChartData.FromRange method, or from literal data contained in the array using the ChartData.FromArray method.
The example below demonstrates how to add data series to a chart and change the cell range containing data for a specific series.
The code uses the SeriesCollection.Add method to create a series and add it to the ChartObject.Series collection. To specify series values contained in the worksheet range, create a ChartData object using the ChartData.FromRange method and assign it to the Series.Values property.
Dim worksheet As Worksheet = workbook.Worksheets("chartTask3") workbook.Worksheets.ActiveWorksheet = worksheet ' Create a chart and specify its location. Dim chart As Chart = worksheet.Charts.Add(ChartType.ColumnClustered) chart.TopLeftCell = worksheet.Cells("H2") chart.BottomRightCell = worksheet.Cells("N14") ' Add series using a worksheet range as the data source. chart.Series.Add(worksheet("D2"), worksheet("B3:B6"), worksheet("D3:D6")) chart.Series.Add(worksheet("F2"), worksheet("B3:B6"), worksheet("F3:F6")) ' Change the data range for the series values. chart.Series(1).Values = ChartData.FromRange(worksheet("E3:E6")) ' Specify the cell that is the source for the series name. chart.Series(1).SeriesName.SetReference(worksheet("E2"))
Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the ChartData class.
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