Insérer un graphique dans un document de feuille de calcul

Cette rubrique montre comment utiliser les classes du Kit de développement logiciel (SDK) Open XML pour Office afin d’insérer un graphique dans un document de feuille de calcul par programmation.

Élément Row

Dans cette procédure, nous abordons les éléments Row, Cell et CellValue. Ainsi, il peut être utile de vous familiariser avec ces éléments. Le texte suivant de la spécification ISO/IEC 29500 introduit l’élément row (<row/>).

L'élément ligne représente des informations sur une ligne entière d'une feuille de calcul, et contient toutes les définitions de cellule d'une ligne particulière de la feuille de calcul.

Cette ligne représente les informations sur la ligne 2 de la feuille de calcul, et contient 3 définitions de cellule.

    <row r="2" spans="2:12">
      <c r="C2" s="1">
        <f>PMT(B3/12,B4,-B5)</f>
        <v>672.68336574300008</v>
      </c>
      <c r="D2">
        <v>180</v>
      </c>
      <c r="E2">
        <v>360</v>
      </c>
    </row>

© ISO/IEC 29500 : 2016

L'exemple de code suivant de schéma XML définit le contenu de l'élément ligne.

    <complexType name="CT_Row">
       <sequence>
           <element name="c" type="CT_Cell" minOccurs="0" maxOccurs="unbounded"/>
           <element name="extLst" minOccurs="0" type="CT_ExtensionList"/>
       </sequence>
       <attribute name="r" type="xsd:unsignedInt" use="optional"/>
       <attribute name="spans" type="ST_CellSpans" use="optional"/>
       <attribute name="s" type="xsd:unsignedInt" use="optional" default="0"/>
       <attribute name="customFormat" type="xsd:boolean" use="optional" default="false"/>
       <attribute name="ht" type="xsd:double" use="optional"/>
       <attribute name="hidden" type="xsd:boolean" use="optional" default="false"/>
       <attribute name="customHeight" type="xsd:boolean" use="optional" default="false"/>
       <attribute name="outlineLevel" type="xsd:unsignedByte" use="optional" default="0"/>
       <attribute name="collapsed" type="xsd:boolean" use="optional" default="false"/>
       <attribute name="thickTop" type="xsd:boolean" use="optional" default="false"/>
       <attribute name="thickBot" type="xsd:boolean" use="optional" default="false"/>
       <attribute name="ph" type="xsd:boolean" use="optional" default="false"/>
    </complexType>

Élément de cellule

Le texte suivant de la spécification ISO/IEC 29500 introduit l’élément cellule (<c/>).

Cette collection représente une cellule de la feuille de calcul. Elle contient les informations emplacement de la cellule (référence), valeur, type de données, mise en forme et formule.

Cet exemple montre les informations stockées pour une cellule dont l'adresse dans la grille est C6, l'index de style est 6, et l'index des métadonnées de valeur est 15. La cellule contient une formule et le résultat calculé de celle-ci.

    <c r="C6" s="1" vm="15">
      <f>CUBEVALUE("xlextdat9 Adventure Works",C$5,$A6)</f>
      <v>2838512.355</v>
    </c>

© ISO/IEC 29500 : 2016

L'exemple de code suivant de schéma XML définit le contenu de cet élément.

    <complexType name="CT_Cell">
       <sequence>
           <element name="f" type="CT_CellFormula" minOccurs="0" maxOccurs="1"/>
           <element name="v" type="ST_Xstring" minOccurs="0" maxOccurs="1"/>
           <element name="is" type="CT_Rst" minOccurs="0" maxOccurs="1"/>
           <element name="extLst" minOccurs="0" type="CT_ExtensionList"/>
       </sequence>
       <attribute name="r" type="ST_CellRef" use="optional"/>
       <attribute name="s" type="xsd:unsignedInt" use="optional" default="0"/>
       <attribute name="t" type="ST_CellType" use="optional" default="n"/>
       <attribute name="cm" type="xsd:unsignedInt" use="optional" default="0"/>
       <attribute name="vm" type="xsd:unsignedInt" use="optional" default="0"/>
       <attribute name="ph" type="xsd:boolean" use="optional" default="false"/>
    </complexType>

Élément de valeur de cellule

Le texte suivant de la spécification ISO/IEC 29500 introduit l’élément Cell Value (<c/>).

Cet élément exprime la valeur contenue dans une cellule. Si la cellule contient une chaîne, cette valeur est un index du tableau de chaînes partagé, pointant sur la valeur de chaîne réelle. Sinon, la valeur de la cellule est exprimée directement dans cet élément. Les cellules contenant des formules expriment le dernier résultat calculé de la formule dans cet élément.

Pour les applications qui ne souhaitent pas implémenter la table de chaînes partagée, une « chaîne inline » peut être exprimée dans un <is/> élément sous <c/> (au lieu d’un <v/> élément sous <c/>), de la même façon qu’une chaîne serait exprimée dans la table de chaînes partagée.

© ISO/IEC 29500 : 2016

Dans l'exemple suivant, la cellule B4 contient le nombre 360.

    <c r="B4">
      <v>360</v>
    </c>

Fonctionnement de l’exemple de code

Après avoir ouvert le fichier de tableur en lecture/écriture, le code vérifie si la feuille de calcul spécifiée existe. Il ajoute ensuite un nouvel DrawingsPart objet à l’aide de la AddNewPart méthode , l’ajoute à la feuille de calcul et enregistre la partie feuille de calcul. Le code ajoute ensuite un nouvel ChartPart objet, ajoute un nouvel ChartSpace objet à l’objet ChartPart , puis ajoute un nouvel EditingLanguage objet à l’objet ChartSpace qui spécifie que la langue du graphique est Anglais-États-Unis.

C#

IEnumerable<Sheet>? sheets = document.WorkbookPart?.Workbook.Descendants<Sheet>().Where(s => s.Name == worksheetName);

if (sheets is null || sheets.Count() == 0)
{
    // The specified worksheet does not exist.
    return;
}

string? id = sheets.First().Id;

if (id is null)
{
    // The worksheet does not have an ID.
    return;
}

WorksheetPart worksheetPart = (WorksheetPart)document.WorkbookPart!.GetPartById(id);

// Add a new drawing to the worksheet.
DrawingsPart drawingsPart = worksheetPart.AddNewPart<DrawingsPart>();
worksheetPart.Worksheet.Append(new DocumentFormat.OpenXml.Spreadsheet.Drawing()
{ Id = worksheetPart.GetIdOfPart(drawingsPart) });

// Add a new chart and set the chart language to English-US.
ChartPart chartPart = drawingsPart.AddNewPart<ChartPart>();
chartPart.ChartSpace = new ChartSpace();
chartPart.ChartSpace.Append(new EditingLanguage() { Val = new StringValue("en-US") });
DocumentFormat.OpenXml.Drawing.Charts.Chart chart = chartPart.ChartSpace.AppendChild<DocumentFormat.OpenXml.Drawing.Charts.Chart>(
    new DocumentFormat.OpenXml.Drawing.Charts.Chart());

Visual Basic

Dim sheets As IEnumerable(Of Sheet) = document.WorkbookPart?.Workbook.Descendants(Of Sheet)().Where(Function(s) s.Name = worksheetName)

If sheets Is Nothing OrElse sheets.Count() = 0 Then
    ' The specified worksheet does not exist.
    Return
End If

Dim id As String = sheets.First().Id

If id Is Nothing Then
    ' The worksheet does not have an ID.
    Return
End If

Dim worksheetPart As WorksheetPart = CType(document.WorkbookPart.GetPartById(id), WorksheetPart)

' Add a new drawing to the worksheet.
Dim drawingsPart As DrawingsPart = worksheetPart.AddNewPart(Of DrawingsPart)()
worksheetPart.Worksheet.Append(New DocumentFormat.OpenXml.Spreadsheet.Drawing() With {.Id = worksheetPart.GetIdOfPart(drawingsPart)})

' Add a new chart and set the chart language to English-US.
Dim chartPart As ChartPart = drawingsPart.AddNewPart(Of ChartPart)()
chartPart.ChartSpace = New ChartSpace()
chartPart.ChartSpace.Append(New EditingLanguage() With {.Val = New StringValue("en-US")})
Dim chart As DocumentFormat.OpenXml.Drawing.Charts.Chart = chartPart.ChartSpace.AppendChild(Of DocumentFormat.OpenXml.Drawing.Charts.Chart)(New DocumentFormat.OpenXml.Drawing.Charts.Chart())

Le code crée un histogramme cluster en créant un BarChart objet avec BarDirectionValues l’objet défini sur Column et BarGroupingValues l’objet Clustereddéfini sur .

Le code itère ensuite au sein de chaque clé de la Dictionary classe . Pour chaque clé, il ajoute un BarChartSeries objet à l’objet BarChart et définit l’objet SeriesText de l’objet BarChartSeries pour qu’il soit égal à la clé. Pour chaque clé, il ajoute un NumberLiteral objet à la Values collection de l’objet BarChartSeries et définit l’objet NumberLiteral pour qu’il soit égal à la valeur de Dictionary classe correspondant à la clé.

C#

        // Create a new clustered column chart.
        PlotArea plotArea = chart.AppendChild<PlotArea>(new PlotArea());
        Layout layout = plotArea.AppendChild<Layout>(new Layout());
        BarChart barChart = plotArea.AppendChild<BarChart>(new BarChart(new BarDirection()
        { Val = new EnumValue<BarDirectionValues>(BarDirectionValues.Column) },
            new BarGrouping() { Val = new EnumValue<BarGroupingValues>(BarGroupingValues.Clustered) }));

        uint i = 0;

        // Iterate through each key in the Dictionary collection and add the key to the chart Series
        // and add the corresponding value to the chart Values.
        foreach (string key in data.Keys)
        {
            BarChartSeries barChartSeries = barChart.AppendChild<BarChartSeries>(new BarChartSeries(new Index()
            {
                Val = new UInt32Value(i)
            },
                new Order() { Val = new UInt32Value(i) },
                new SeriesText(new NumericValue() { Text = key })));

            StringLiteral strLit = barChartSeries.AppendChild<CategoryAxisData>(new CategoryAxisData()).AppendChild<StringLiteral>(new StringLiteral());
            strLit.Append(new PointCount() { Val = new UInt32Value(1U) });
            strLit.AppendChild<StringPoint>(new StringPoint() { Index = new UInt32Value(0U) }).Append(new NumericValue(title));

            NumberLiteral numLit = barChartSeries.AppendChild<DocumentFormat.OpenXml.Drawing.Charts.Values>(
                new DocumentFormat.OpenXml.Drawing.Charts.Values()).AppendChild<NumberLiteral>(new NumberLiteral());
            numLit.Append(new FormatCode("General"));
            numLit.Append(new PointCount() { Val = new UInt32Value(1U) });
            numLit.AppendChild<NumericPoint>(new NumericPoint() { Index = new UInt32Value(0u) }).Append
(new NumericValue(data[key].ToString()));

            i++;
        }

Visual Basic

' Create a new clustered column chart.
Dim plotArea As PlotArea = chart.AppendChild(Of PlotArea)(New PlotArea())
Dim layout As Layout = plotArea.AppendChild(Of Layout)(New Layout())
Dim barChart As BarChart = plotArea.AppendChild(Of BarChart)(New BarChart(New BarDirection() With {.Val = New EnumValue(Of BarDirectionValues)(BarDirectionValues.Column)}, New BarGrouping() With {.Val = New EnumValue(Of BarGroupingValues)(BarGroupingValues.Clustered)}))

Dim i As UInteger = 0

' Iterate through each key in the Dictionary collection and add the key to the chart Series
' and add the corresponding value to the chart Values.
For Each key As String In data.Keys
    Dim barChartSeries As BarChartSeries = barChart.AppendChild(Of BarChartSeries)(New BarChartSeries(New Index() With {.Val = New UInt32Value(i)}, New Order() With {.Val = New UInt32Value(i)}, New SeriesText(New NumericValue() With {.Text = key})))

    Dim strLit As StringLiteral = barChartSeries.AppendChild(Of CategoryAxisData)(New CategoryAxisData()).AppendChild(Of StringLiteral)(New StringLiteral())
    strLit.Append(New PointCount() With {.Val = New UInt32Value(1UI)})
    strLit.AppendChild(Of StringPoint)(New StringPoint() With {.Index = New UInt32Value(0UI)}).Append(New NumericValue(title))

    Dim numLit As NumberLiteral = barChartSeries.AppendChild(Of DocumentFormat.OpenXml.Drawing.Charts.Values)(New DocumentFormat.OpenXml.Drawing.Charts.Values()).AppendChild(Of NumberLiteral)(New NumberLiteral())
    numLit.Append(New FormatCode("General"))
    numLit.Append(New PointCount() With {.Val = New UInt32Value(1UI)})
    numLit.AppendChild(Of NumericPoint)(New NumericPoint() With {.Index = New UInt32Value(0UI)}).Append(New NumericValue(data(key).ToString()))

    i += 1
Next

Le code ajoute l’objet CategoryAxis et l’objet au graphique et définit la valeur des propriétés suivantes : Scaling, AxisPosition, TickLabelPosition, CrossingAxis, AutoLabeledCrosses, LabelAlignment, et LabelOffset.ValueAxis Il ajoute également l’objet Legend au graphique et enregistre le composant graphique.

C#

        barChart.Append(new AxisId() { Val = new UInt32Value(48650112u) });
        barChart.Append(new AxisId() { Val = new UInt32Value(48672768u) });

        // Add the Category Axis.
        CategoryAxis catAx = plotArea.AppendChild<CategoryAxis>(new CategoryAxis(new AxisId()
        { Val = new UInt32Value(48650112u) }, new Scaling(new Orientation()
        {
            Val = new EnumValue<DocumentFormat.OpenXml.Drawing.Charts.OrientationValues>(DocumentFormat.OpenXml.Drawing.Charts.OrientationValues.MinMax)
        }),
            new AxisPosition() { Val = new EnumValue<AxisPositionValues>(AxisPositionValues.Bottom) },
            new TickLabelPosition() { Val = new EnumValue<TickLabelPositionValues>(TickLabelPositionValues.NextTo) },
            new CrossingAxis() { Val = new UInt32Value(48672768U) },
            new Crosses() { Val = new EnumValue<CrossesValues>(CrossesValues.AutoZero) },
            new AutoLabeled() { Val = new BooleanValue(true) },
            new LabelAlignment() { Val = new EnumValue<LabelAlignmentValues>(LabelAlignmentValues.Center) },
            new LabelOffset() { Val = new UInt16Value((ushort)100) }));

        // Add the Value Axis.
        ValueAxis valAx = plotArea.AppendChild<ValueAxis>(new ValueAxis(new AxisId() { Val = new UInt32Value(48672768u) },
            new Scaling(new Orientation()
            {
                Val = new EnumValue<DocumentFormat.OpenXml.Drawing.Charts.OrientationValues>(
                DocumentFormat.OpenXml.Drawing.Charts.OrientationValues.MinMax)
            }),
            new AxisPosition() { Val = new EnumValue<AxisPositionValues>(AxisPositionValues.Left) },
            new MajorGridlines(),
            new DocumentFormat.OpenXml.Drawing.Charts.NumberingFormat()
            {
                FormatCode = new StringValue("General"),
                SourceLinked = new BooleanValue(true)
            }, new TickLabelPosition()
            {
                Val = new EnumValue<TickLabelPositionValues>
(TickLabelPositionValues.NextTo)
            }, new CrossingAxis() { Val = new UInt32Value(48650112U) },
            new Crosses() { Val = new EnumValue<CrossesValues>(CrossesValues.AutoZero) },
            new CrossBetween() { Val = new EnumValue<CrossBetweenValues>(CrossBetweenValues.Between) }));

        // Add the chart Legend.
        Legend legend = chart.AppendChild<Legend>(new Legend(new LegendPosition() { Val = new EnumValue<LegendPositionValues>(LegendPositionValues.Right) },
            new Layout()));

        chart.Append(new PlotVisibleOnly() { Val = new BooleanValue(true) });

Visual Basic

barChart.Append(New AxisId() With {.Val = New UInt32Value(48650112UI)})
barChart.Append(New AxisId() With {.Val = New UInt32Value(48672768UI)})

' Add the Category Axis.
Dim catAx As CategoryAxis = plotArea.AppendChild(Of CategoryAxis)(New CategoryAxis(New AxisId() With {.Val = New UInt32Value(48650112UI)}, New Scaling(New Orientation() With {.Val = New EnumValue(Of DocumentFormat.OpenXml.Drawing.Charts.OrientationValues)(DocumentFormat.OpenXml.Drawing.Charts.OrientationValues.MinMax)}), New AxisPosition() With {.Val = New EnumValue(Of AxisPositionValues)(AxisPositionValues.Bottom)}, New TickLabelPosition() With {.Val = New EnumValue(Of TickLabelPositionValues)(TickLabelPositionValues.NextTo)}, New CrossingAxis() With {.Val = New UInt32Value(48672768UI)}, New Crosses() With {.Val = New EnumValue(Of CrossesValues)(CrossesValues.AutoZero)}, New AutoLabeled() With {.Val = New BooleanValue(True)}, New LabelAlignment() With {.Val = New EnumValue(Of LabelAlignmentValues)(LabelAlignmentValues.Center)}, New LabelOffset() With {.Val = New UInt16Value(CUShort(100))}))

' Add the Value Axis.
Dim valAx As ValueAxis = plotArea.AppendChild(Of ValueAxis)(New ValueAxis(New AxisId() With {.Val = New UInt32Value(48672768UI)}, New Scaling(New Orientation() With {.Val = New EnumValue(Of DocumentFormat.OpenXml.Drawing.Charts.OrientationValues)(DocumentFormat.OpenXml.Drawing.Charts.OrientationValues.MinMax)}), New AxisPosition() With {.Val = New EnumValue(Of AxisPositionValues)(AxisPositionValues.Left)}, New MajorGridlines(), New DocumentFormat.OpenXml.Drawing.Charts.NumberingFormat() With {.FormatCode = New StringValue("General"), .SourceLinked = New BooleanValue(True)}, New TickLabelPosition() With {.Val = New EnumValue(Of TickLabelPositionValues)(TickLabelPositionValues.NextTo)}, New CrossingAxis() With {.Val = New UInt32Value(48650112UI)}, New Crosses() With {.Val = New EnumValue(Of CrossesValues)(CrossesValues.AutoZero)}, New CrossBetween() With {.Val = New EnumValue(Of CrossBetweenValues)(CrossBetweenValues.Between)}))

' Add the chart Legend.
Dim legend As Legend = chart.AppendChild(Of Legend)(New Legend(New LegendPosition() With {.Val = New EnumValue(Of LegendPositionValues)(LegendPositionValues.Right)}, New Layout()))

chart.Append(New PlotVisibleOnly() With {.Val = New BooleanValue(True)})

Le code positionne le graphique sur la feuille de calcul en créant un WorksheetDrawing objet et en ajoutant un TwoCellAnchor objet . L’objet TwoCellAnchor spécifie comment déplacer ou redimensionner le graphique si vous déplacez les lignes et les colonnes entre les FromMarker ancres et ToMarker . Le code crée ensuite un GraphicFrame objet pour contenir le graphique et nomme le graphique « Graphique 1 ».

C#

        // Position the chart on the worksheet using a TwoCellAnchor object.
        drawingsPart.WorksheetDrawing = new WorksheetDrawing();
        TwoCellAnchor twoCellAnchor = drawingsPart.WorksheetDrawing.AppendChild<TwoCellAnchor>(new TwoCellAnchor());
        twoCellAnchor.Append(new DocumentFormat.OpenXml.Drawing.Spreadsheet.FromMarker(new ColumnId("9"),
            new ColumnOffset("581025"),
            new RowId("17"),
            new RowOffset("114300")));
        twoCellAnchor.Append(new DocumentFormat.OpenXml.Drawing.Spreadsheet.ToMarker(new ColumnId("17"),
            new ColumnOffset("276225"),
            new RowId("32"),
            new RowOffset("0")));

        // Append a GraphicFrame to the TwoCellAnchor object.
        DocumentFormat.OpenXml.Drawing.Spreadsheet.GraphicFrame graphicFrame =
            twoCellAnchor.AppendChild<DocumentFormat.OpenXml.
Drawing.Spreadsheet.GraphicFrame>(new DocumentFormat.OpenXml.Drawing.
Spreadsheet.GraphicFrame());
        graphicFrame.Macro = "";

        graphicFrame.Append(new DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualGraphicFrameProperties(
            new DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualDrawingProperties() { Id = new UInt32Value(2u), Name = "Chart 1" },
            new DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualGraphicFrameDrawingProperties()));

        graphicFrame.Append(new Transform(new Offset() { X = 0L, Y = 0L },
                                                                new Extents() { Cx = 0L, Cy = 0L }));

        graphicFrame.Append(new Graphic(new GraphicData(new ChartReference() { Id = drawingsPart.GetIdOfPart(chartPart) })
        { Uri = "http://schemas.openxmlformats.org/drawingml/2006/chart" }));

        twoCellAnchor.Append(new ClientData());

Visual Basic

' Position the chart on the worksheet using a TwoCellAnchor object.
drawingsPart.WorksheetDrawing = New WorksheetDrawing()
Dim twoCellAnchor As TwoCellAnchor = drawingsPart.WorksheetDrawing.AppendChild(Of TwoCellAnchor)(New TwoCellAnchor())
twoCellAnchor.Append(New DocumentFormat.OpenXml.Drawing.Spreadsheet.FromMarker(New ColumnId("9"), New ColumnOffset("581025"), New RowId("17"), New RowOffset("114300")))
twoCellAnchor.Append(New DocumentFormat.OpenXml.Drawing.Spreadsheet.ToMarker(New ColumnId("17"), New ColumnOffset("276225"), New RowId("32"), New RowOffset("0")))

' Append a GraphicFrame to the TwoCellAnchor object.
Dim graphicFrame As DocumentFormat.OpenXml.Drawing.Spreadsheet.GraphicFrame = twoCellAnchor.AppendChild(Of DocumentFormat.OpenXml.Drawing.Spreadsheet.GraphicFrame)(New DocumentFormat.OpenXml.Drawing.Spreadsheet.GraphicFrame())
graphicFrame.Macro = ""

graphicFrame.Append(New DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualGraphicFrameProperties(New DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualDrawingProperties() With {.Id = New UInt32Value(2UI), .Name = "Chart 1"}, New DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualGraphicFrameDrawingProperties()))

graphicFrame.Append(New Transform(New Offset() With {.X = 0L, .Y = 0L}, New Extents() With {.Cx = 0L, .Cy = 0L}))

graphicFrame.Append(New Graphic(New GraphicData(New ChartReference() With {.Id = drawingsPart.GetIdOfPart(chartPart)}) With {.Uri = "http://schemas.openxmlformats.org/drawingml/2006/chart"}))

twoCellAnchor.Append(New ClientData())

Exemple de code

Remarque

[!REMARQUE] Ce code n'est exécutable qu'une seule fois. Vous ne pouvez pas créer plus d'une instance du graphique.

Voici l'exemple de code complet en C# et Visual Basic.

C#

static void InsertChartInSpreadsheet(string docName, string worksheetName, string title, Dictionary<string, int> data)
{
    // Open the document for editing.
    using (SpreadsheetDocument document = SpreadsheetDocument.Open(docName, true))
    {
        IEnumerable<Sheet>? sheets = document.WorkbookPart?.Workbook.Descendants<Sheet>().Where(s => s.Name == worksheetName);

        if (sheets is null || sheets.Count() == 0)
        {
            // The specified worksheet does not exist.
            return;
        }

        string? id = sheets.First().Id;

        if (id is null)
        {
            // The worksheet does not have an ID.
            return;
        }

        WorksheetPart worksheetPart = (WorksheetPart)document.WorkbookPart!.GetPartById(id);

        // Add a new drawing to the worksheet.
        DrawingsPart drawingsPart = worksheetPart.AddNewPart<DrawingsPart>();
        worksheetPart.Worksheet.Append(new DocumentFormat.OpenXml.Spreadsheet.Drawing()
        { Id = worksheetPart.GetIdOfPart(drawingsPart) });

        // Add a new chart and set the chart language to English-US.
        ChartPart chartPart = drawingsPart.AddNewPart<ChartPart>();
        chartPart.ChartSpace = new ChartSpace();
        chartPart.ChartSpace.Append(new EditingLanguage() { Val = new StringValue("en-US") });
        DocumentFormat.OpenXml.Drawing.Charts.Chart chart = chartPart.ChartSpace.AppendChild<DocumentFormat.OpenXml.Drawing.Charts.Chart>(
            new DocumentFormat.OpenXml.Drawing.Charts.Chart());

        // Create a new clustered column chart.
        PlotArea plotArea = chart.AppendChild<PlotArea>(new PlotArea());
        Layout layout = plotArea.AppendChild<Layout>(new Layout());
        BarChart barChart = plotArea.AppendChild<BarChart>(new BarChart(new BarDirection()
        { Val = new EnumValue<BarDirectionValues>(BarDirectionValues.Column) },
            new BarGrouping() { Val = new EnumValue<BarGroupingValues>(BarGroupingValues.Clustered) }));

        uint i = 0;

        // Iterate through each key in the Dictionary collection and add the key to the chart Series
        // and add the corresponding value to the chart Values.
        foreach (string key in data.Keys)
        {
            BarChartSeries barChartSeries = barChart.AppendChild<BarChartSeries>(new BarChartSeries(new Index()
            {
                Val = new UInt32Value(i)
            },
                new Order() { Val = new UInt32Value(i) },
                new SeriesText(new NumericValue() { Text = key })));

            StringLiteral strLit = barChartSeries.AppendChild<CategoryAxisData>(new CategoryAxisData()).AppendChild<StringLiteral>(new StringLiteral());
            strLit.Append(new PointCount() { Val = new UInt32Value(1U) });
            strLit.AppendChild<StringPoint>(new StringPoint() { Index = new UInt32Value(0U) }).Append(new NumericValue(title));

            NumberLiteral numLit = barChartSeries.AppendChild<DocumentFormat.OpenXml.Drawing.Charts.Values>(
                new DocumentFormat.OpenXml.Drawing.Charts.Values()).AppendChild<NumberLiteral>(new NumberLiteral());
            numLit.Append(new FormatCode("General"));
            numLit.Append(new PointCount() { Val = new UInt32Value(1U) });
            numLit.AppendChild<NumericPoint>(new NumericPoint() { Index = new UInt32Value(0u) }).Append
(new NumericValue(data[key].ToString()));

            i++;
        }

        barChart.Append(new AxisId() { Val = new UInt32Value(48650112u) });
        barChart.Append(new AxisId() { Val = new UInt32Value(48672768u) });

        // Add the Category Axis.
        CategoryAxis catAx = plotArea.AppendChild<CategoryAxis>(new CategoryAxis(new AxisId()
        { Val = new UInt32Value(48650112u) }, new Scaling(new Orientation()
        {
            Val = new EnumValue<DocumentFormat.OpenXml.Drawing.Charts.OrientationValues>(DocumentFormat.OpenXml.Drawing.Charts.OrientationValues.MinMax)
        }),
            new AxisPosition() { Val = new EnumValue<AxisPositionValues>(AxisPositionValues.Bottom) },
            new TickLabelPosition() { Val = new EnumValue<TickLabelPositionValues>(TickLabelPositionValues.NextTo) },
            new CrossingAxis() { Val = new UInt32Value(48672768U) },
            new Crosses() { Val = new EnumValue<CrossesValues>(CrossesValues.AutoZero) },
            new AutoLabeled() { Val = new BooleanValue(true) },
            new LabelAlignment() { Val = new EnumValue<LabelAlignmentValues>(LabelAlignmentValues.Center) },
            new LabelOffset() { Val = new UInt16Value((ushort)100) }));

        // Add the Value Axis.
        ValueAxis valAx = plotArea.AppendChild<ValueAxis>(new ValueAxis(new AxisId() { Val = new UInt32Value(48672768u) },
            new Scaling(new Orientation()
            {
                Val = new EnumValue<DocumentFormat.OpenXml.Drawing.Charts.OrientationValues>(
                DocumentFormat.OpenXml.Drawing.Charts.OrientationValues.MinMax)
            }),
            new AxisPosition() { Val = new EnumValue<AxisPositionValues>(AxisPositionValues.Left) },
            new MajorGridlines(),
            new DocumentFormat.OpenXml.Drawing.Charts.NumberingFormat()
            {
                FormatCode = new StringValue("General"),
                SourceLinked = new BooleanValue(true)
            }, new TickLabelPosition()
            {
                Val = new EnumValue<TickLabelPositionValues>
(TickLabelPositionValues.NextTo)
            }, new CrossingAxis() { Val = new UInt32Value(48650112U) },
            new Crosses() { Val = new EnumValue<CrossesValues>(CrossesValues.AutoZero) },
            new CrossBetween() { Val = new EnumValue<CrossBetweenValues>(CrossBetweenValues.Between) }));

        // Add the chart Legend.
        Legend legend = chart.AppendChild<Legend>(new Legend(new LegendPosition() { Val = new EnumValue<LegendPositionValues>(LegendPositionValues.Right) },
            new Layout()));

        chart.Append(new PlotVisibleOnly() { Val = new BooleanValue(true) });

        // Position the chart on the worksheet using a TwoCellAnchor object.
        drawingsPart.WorksheetDrawing = new WorksheetDrawing();
        TwoCellAnchor twoCellAnchor = drawingsPart.WorksheetDrawing.AppendChild<TwoCellAnchor>(new TwoCellAnchor());
        twoCellAnchor.Append(new DocumentFormat.OpenXml.Drawing.Spreadsheet.FromMarker(new ColumnId("9"),
            new ColumnOffset("581025"),
            new RowId("17"),
            new RowOffset("114300")));
        twoCellAnchor.Append(new DocumentFormat.OpenXml.Drawing.Spreadsheet.ToMarker(new ColumnId("17"),
            new ColumnOffset("276225"),
            new RowId("32"),
            new RowOffset("0")));

        // Append a GraphicFrame to the TwoCellAnchor object.
        DocumentFormat.OpenXml.Drawing.Spreadsheet.GraphicFrame graphicFrame =
            twoCellAnchor.AppendChild<DocumentFormat.OpenXml.
Drawing.Spreadsheet.GraphicFrame>(new DocumentFormat.OpenXml.Drawing.
Spreadsheet.GraphicFrame());
        graphicFrame.Macro = "";

        graphicFrame.Append(new DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualGraphicFrameProperties(
            new DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualDrawingProperties() { Id = new UInt32Value(2u), Name = "Chart 1" },
            new DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualGraphicFrameDrawingProperties()));

        graphicFrame.Append(new Transform(new Offset() { X = 0L, Y = 0L },
                                                                new Extents() { Cx = 0L, Cy = 0L }));

        graphicFrame.Append(new Graphic(new GraphicData(new ChartReference() { Id = drawingsPart.GetIdOfPart(chartPart) })
        { Uri = "http://schemas.openxmlformats.org/drawingml/2006/chart" }));

        twoCellAnchor.Append(new ClientData());
    }

}

Visual Basic

Sub InsertChartInSpreadsheet(docName As String, worksheetName As String, title As String, data As Dictionary(Of String, Integer))
    ' Open the document for editing.
    Using document As SpreadsheetDocument = SpreadsheetDocument.Open(docName, True)
        Dim sheets As IEnumerable(Of Sheet) = document.WorkbookPart?.Workbook.Descendants(Of Sheet)().Where(Function(s) s.Name = worksheetName)

        If sheets Is Nothing OrElse sheets.Count() = 0 Then
            ' The specified worksheet does not exist.
            Return
        End If

        Dim id As String = sheets.First().Id

        If id Is Nothing Then
            ' The worksheet does not have an ID.
            Return
        End If

        Dim worksheetPart As WorksheetPart = CType(document.WorkbookPart.GetPartById(id), WorksheetPart)

        ' Add a new drawing to the worksheet.
        Dim drawingsPart As DrawingsPart = worksheetPart.AddNewPart(Of DrawingsPart)()
        worksheetPart.Worksheet.Append(New DocumentFormat.OpenXml.Spreadsheet.Drawing() With {.Id = worksheetPart.GetIdOfPart(drawingsPart)})

        ' Add a new chart and set the chart language to English-US.
        Dim chartPart As ChartPart = drawingsPart.AddNewPart(Of ChartPart)()
        chartPart.ChartSpace = New ChartSpace()
        chartPart.ChartSpace.Append(New EditingLanguage() With {.Val = New StringValue("en-US")})
        Dim chart As DocumentFormat.OpenXml.Drawing.Charts.Chart = chartPart.ChartSpace.AppendChild(Of DocumentFormat.OpenXml.Drawing.Charts.Chart)(New DocumentFormat.OpenXml.Drawing.Charts.Chart())

        ' Create a new clustered column chart.
        Dim plotArea As PlotArea = chart.AppendChild(Of PlotArea)(New PlotArea())
        Dim layout As Layout = plotArea.AppendChild(Of Layout)(New Layout())
        Dim barChart As BarChart = plotArea.AppendChild(Of BarChart)(New BarChart(New BarDirection() With {.Val = New EnumValue(Of BarDirectionValues)(BarDirectionValues.Column)}, New BarGrouping() With {.Val = New EnumValue(Of BarGroupingValues)(BarGroupingValues.Clustered)}))

        Dim i As UInteger = 0

        ' Iterate through each key in the Dictionary collection and add the key to the chart Series
        ' and add the corresponding value to the chart Values.
        For Each key As String In data.Keys
            Dim barChartSeries As BarChartSeries = barChart.AppendChild(Of BarChartSeries)(New BarChartSeries(New Index() With {.Val = New UInt32Value(i)}, New Order() With {.Val = New UInt32Value(i)}, New SeriesText(New NumericValue() With {.Text = key})))

            Dim strLit As StringLiteral = barChartSeries.AppendChild(Of CategoryAxisData)(New CategoryAxisData()).AppendChild(Of StringLiteral)(New StringLiteral())
            strLit.Append(New PointCount() With {.Val = New UInt32Value(1UI)})
            strLit.AppendChild(Of StringPoint)(New StringPoint() With {.Index = New UInt32Value(0UI)}).Append(New NumericValue(title))

            Dim numLit As NumberLiteral = barChartSeries.AppendChild(Of DocumentFormat.OpenXml.Drawing.Charts.Values)(New DocumentFormat.OpenXml.Drawing.Charts.Values()).AppendChild(Of NumberLiteral)(New NumberLiteral())
            numLit.Append(New FormatCode("General"))
            numLit.Append(New PointCount() With {.Val = New UInt32Value(1UI)})
            numLit.AppendChild(Of NumericPoint)(New NumericPoint() With {.Index = New UInt32Value(0UI)}).Append(New NumericValue(data(key).ToString()))

            i += 1
        Next

        barChart.Append(New AxisId() With {.Val = New UInt32Value(48650112UI)})
        barChart.Append(New AxisId() With {.Val = New UInt32Value(48672768UI)})

        ' Add the Category Axis.
        Dim catAx As CategoryAxis = plotArea.AppendChild(Of CategoryAxis)(New CategoryAxis(New AxisId() With {.Val = New UInt32Value(48650112UI)}, New Scaling(New Orientation() With {.Val = New EnumValue(Of DocumentFormat.OpenXml.Drawing.Charts.OrientationValues)(DocumentFormat.OpenXml.Drawing.Charts.OrientationValues.MinMax)}), New AxisPosition() With {.Val = New EnumValue(Of AxisPositionValues)(AxisPositionValues.Bottom)}, New TickLabelPosition() With {.Val = New EnumValue(Of TickLabelPositionValues)(TickLabelPositionValues.NextTo)}, New CrossingAxis() With {.Val = New UInt32Value(48672768UI)}, New Crosses() With {.Val = New EnumValue(Of CrossesValues)(CrossesValues.AutoZero)}, New AutoLabeled() With {.Val = New BooleanValue(True)}, New LabelAlignment() With {.Val = New EnumValue(Of LabelAlignmentValues)(LabelAlignmentValues.Center)}, New LabelOffset() With {.Val = New UInt16Value(CUShort(100))}))

        ' Add the Value Axis.
        Dim valAx As ValueAxis = plotArea.AppendChild(Of ValueAxis)(New ValueAxis(New AxisId() With {.Val = New UInt32Value(48672768UI)}, New Scaling(New Orientation() With {.Val = New EnumValue(Of DocumentFormat.OpenXml.Drawing.Charts.OrientationValues)(DocumentFormat.OpenXml.Drawing.Charts.OrientationValues.MinMax)}), New AxisPosition() With {.Val = New EnumValue(Of AxisPositionValues)(AxisPositionValues.Left)}, New MajorGridlines(), New DocumentFormat.OpenXml.Drawing.Charts.NumberingFormat() With {.FormatCode = New StringValue("General"), .SourceLinked = New BooleanValue(True)}, New TickLabelPosition() With {.Val = New EnumValue(Of TickLabelPositionValues)(TickLabelPositionValues.NextTo)}, New CrossingAxis() With {.Val = New UInt32Value(48650112UI)}, New Crosses() With {.Val = New EnumValue(Of CrossesValues)(CrossesValues.AutoZero)}, New CrossBetween() With {.Val = New EnumValue(Of CrossBetweenValues)(CrossBetweenValues.Between)}))

        ' Add the chart Legend.
        Dim legend As Legend = chart.AppendChild(Of Legend)(New Legend(New LegendPosition() With {.Val = New EnumValue(Of LegendPositionValues)(LegendPositionValues.Right)}, New Layout()))

        chart.Append(New PlotVisibleOnly() With {.Val = New BooleanValue(True)})

        ' Position the chart on the worksheet using a TwoCellAnchor object.
        drawingsPart.WorksheetDrawing = New WorksheetDrawing()
        Dim twoCellAnchor As TwoCellAnchor = drawingsPart.WorksheetDrawing.AppendChild(Of TwoCellAnchor)(New TwoCellAnchor())
        twoCellAnchor.Append(New DocumentFormat.OpenXml.Drawing.Spreadsheet.FromMarker(New ColumnId("9"), New ColumnOffset("581025"), New RowId("17"), New RowOffset("114300")))
        twoCellAnchor.Append(New DocumentFormat.OpenXml.Drawing.Spreadsheet.ToMarker(New ColumnId("17"), New ColumnOffset("276225"), New RowId("32"), New RowOffset("0")))

        ' Append a GraphicFrame to the TwoCellAnchor object.
        Dim graphicFrame As DocumentFormat.OpenXml.Drawing.Spreadsheet.GraphicFrame = twoCellAnchor.AppendChild(Of DocumentFormat.OpenXml.Drawing.Spreadsheet.GraphicFrame)(New DocumentFormat.OpenXml.Drawing.Spreadsheet.GraphicFrame())
        graphicFrame.Macro = ""

        graphicFrame.Append(New DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualGraphicFrameProperties(New DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualDrawingProperties() With {.Id = New UInt32Value(2UI), .Name = "Chart 1"}, New DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualGraphicFrameDrawingProperties()))

        graphicFrame.Append(New Transform(New Offset() With {.X = 0L, .Y = 0L}, New Extents() With {.Cx = 0L, .Cy = 0L}))

        graphicFrame.Append(New Graphic(New GraphicData(New ChartReference() With {.Id = drawingsPart.GetIdOfPart(chartPart)}) With {.Uri = "http://schemas.openxmlformats.org/drawingml/2006/chart"}))

        twoCellAnchor.Append(New ClientData())
    End Using
End Sub

Voir aussi

Informations de référence sur la bibliothèque de classes du Kit de développement logiciel (SDK) Open XML