ChartFormat.Chart Property

Allows you to obtain a spreadsheet chart object.

Namespace: DevExpress.XtraRichEdit.API.Native

Assembly: DevExpress.RichEdit.v23.2.Core.dll

NuGet Packages: DevExpress.RichEdit.Core, DevExpress.Win.Navigation

Declaration

C#

object Chart { get; }

VB.NET

ReadOnly Property Chart As Object

Property Value

Type	Description
Object	An object to be cast to a DevExpress.Spreadsheet.Charts.ChartObject object.

Remarks

Enable Charts

Before you create a chart, enable spreadsheet chart support in your word processing app, as described in these topics:

• Enable Charts for the Word Processing Document API

• Enable Charts in the WinForms Rich Text Editor

• Enable Charts in the WPF Rich Text Editor

Create a Chart

Use the ShapeCollection.InsertChart method to add a chart to a document. Pass a ChartType enumeration member to this method to specify the chart type.

Use the following properties to populate the chart with data:

Shape.ChartFormat.Chart

Cast this property value to DevExpress.Spreadsheet.Charts.ChartObject to obtain a spreadsheet chart associated with the inserted chart object. Use the Spreadsheet Chart API to specify chart settings (select the source data, define series options, and specify the chart layout).

Shape.ChartFormat.Worksheet

Cast this property value to a DevExpress.Spreadsheet.Worksheet object to obtain a worksheet that stores chart data.

The following code snippet adds a Pareto chart to a document:

C#

using DevExpress.Office.Services;
using DevExpress.XtraSpreadsheet.Services;
using DevExpress.XtraRichEdit.API.Native;
using DevExpress.Spreadsheet.Charts;
using DevExpress.Spreadsheet;
using System.Drawing;
// ...

Document document = wordProcessor.Document;
// Set measurement unit to inches.
document.Unit = DevExpress.Office.DocumentUnit.Inch;
// Create a Pareto chart.
var chartShape = document.Shapes.InsertChart(document.Range.Start, 
    DevExpress.XtraRichEdit.API.Native.ChartType.Pareto);
chartShape.Name = "Pareto chart";
// Specify the chart size and position.
chartShape.Size = new System.Drawing.SizeF(6, 4);
chartShape.RelativeHorizontalPosition = ShapeRelativeHorizontalPosition.Column;
chartShape.RelativeVerticalPosition = ShapeRelativeVerticalPosition.Paragraph;
chartShape.Offset = new PointF(0, 0);

// Access the spreadsheet chart object.
ChartObject chart = (ChartObject)chartShape.ChartFormat.Chart;
// Access a worksheet that stores chart data.
Worksheet worksheet = (Worksheet)chartShape.ChartFormat.Worksheet;
// Populate the worksheet with data.
SpecifyChartData(worksheet);
// Select chart data.
chart.SelectData(worksheet["B2:C7"]);

// Specify series options.
var options = chart.Series[0].LayoutOptions.Histogram;
options.BinType = HistogramBinType.ByCategory;
// Specify the gap width.
chart.Series[0].GapWidth = 15;

// Add the chart title.
chart.Title.Visible = true;
chart.Title.SetValue("Key Causes of Late Projects");

private static void SpecifyChartData(Worksheet sheet)
{
    // The first column.
    sheet["B2"].Value = "Key causes of late projects";
    sheet["B3"].Value = "Poor specification";
    sheet["B4"].Value = "Poor planning";
    sheet["B5"].Value = "Lack of support";
    sheet["B6"].Value = "Lack of resources";
    sheet["B7"].Value = "Technology issues";
    // The second column.
    sheet["C2"].Value = "Frequency of occurrences";
    sheet["C3"].Value = 16;
    sheet["C4"].Value = 20;
    sheet["C5"].Value = 3;
    sheet["C6"].Value = 4;
    sheet["C7"].Value = 1;
}

VB.NET

Imports DevExpress.Office.Services
Imports DevExpress.XtraSpreadsheet.Services
Imports DevExpress.XtraRichEdit.API.Native
Imports DevExpress.Spreadsheet.Charts
Imports DevExpress.Spreadsheet
Imports System.Drawing
' ...

Dim document As Document = wordProcessor.Document
' Set measurement unit to inches.
document.Unit = DevExpress.Office.DocumentUnit.Inch
' Create a Pareto chart.
Dim chartShape As DevExpress.XtraRichEdit.API.Native.Shape = 
    document.Shapes.InsertChart(document.Range.Start, 
    DevExpress.XtraRichEdit.API.Native.ChartType.Pareto)
chartShape.Name = "Pareto chart"
' Specify the chart size and position.
chartShape.Size = New System.Drawing.SizeF(6, 4)
chartShape.RelativeHorizontalPosition = ShapeRelativeHorizontalPosition.Column
chartShape.RelativeVerticalPosition = ShapeRelativeVerticalPosition.Paragraph
chartShape.Offset = New PointF(0, 0)

' Access the spreadsheet chart object.
Dim chart As ChartObject = CType(chartShape.ChartFormat.Chart, ChartObject)
' Access a worksheet that stores chart data.
Dim worksheet As Worksheet = CType(chartShape.ChartFormat.Worksheet, Worksheet)
' Populate the worksheet with data.
SpecifyChartData(worksheet)
' Select chart data.
chart.SelectData(worksheet("B2:C7"))

' Specify series options.
Dim options As HistogramSeriesOptions = 
    chart.Series(0).LayoutOptions.Histogram
options.BinType = HistogramBinType.ByCategory
' Specify the gap width.
chart.Series(0).GapWidth = 15

' Add the chart title.
chart.Title.Visible = True
chart.Title.SetValue("Key Causes of Late Projects")

Private Sub SpecifyChartData(ByVal sheet As Worksheet)
    ' The first column.
    sheet("B2").Value = "Key causes of late projects"
    sheet("B3").Value = "Poor specification"
    sheet("B4").Value = "Poor planning"
    sheet("B5").Value = "Lack of support"
    sheet("B6").Value = "Lack of resources"
    sheet("B7").Value = "Technology issues"
    ' The second column.
    sheet("C2").Value = "Frequency of occurrences"
    sheet("C3").Value = 16
    sheet("C4").Value = 20
    sheet("C5").Value = 3
    sheet("C6").Value = 4
    sheet("C7").Value = 1
End Sub