Spread WPF 14
Spread WPF Documentation / Developer's Guide / Working with Charts / Understanding Charts / Legend
In This Topic
    Legend
    In This Topic

    The legend is a separate area used to display labels of all the data series in one chart. You can set the font, background color, foreground color, and border for the legend.

    An example of custom chart legend

    Using Code

    The following code creates a chart.

    1. Add values to the control.
    2. Create a Legend object and set the properties of the Legend class.
    3. Create a chart using the SpreadChart class.
    4. Add the chart.
    CS
    Copy Code
    private double strokeThickness;
    private Brush stroke;
    private Brush fillBrush;
    private double chartFontSize;
    private double axisFontSize;
    private FontFamily fontFamily;
    private FontStyle fontStyle;
    private FontWeight fontWeight;
    private FontStretch fontStretch;
    private Brush foreground;
    
    strokeThickness = 2;
    stroke = new SolidColorBrush(Colors.Green);
    fillBrush = new SolidColorBrush(Colors.Red);
    foreground = new SolidColorBrush(Colors.Blue);
    chartFontSize = 25;
    axisFontSize = 25;
    fontFamily = new FontFamily("Arial Narrow");
    fontStyle = FontStyles.Italic;
    fontWeight = FontWeights.Bold;
    fontStretch = FontStretches.ExtraExpanded;
    
    GrapeCity.Windows.SpreadSheet.Data.SpreadChart chart = new GrapeCity.Windows.SpreadSheet.Data.SpreadChart("Chart", GrapeCity.Windows.SpreadSheet.Data.SpreadChartType.BarStacked, "Sheet1!$A$1:$A$7", 0, 0, 200, 200);
    gcSpreadSheet1.ActiveSheet.SetArray(0, 0, new object[,] { { 1 }, { 2 }, { 3 }, { 4 }, { 5 }, { 6 }, { 7 }, { 8 }, { 9 }, { 10 } });
    
    GrapeCity.Windows.SpreadSheet.Data.Legend chartLegend = new GrapeCity.Windows.SpreadSheet.Data.Legend();
    chartLegend.Fill = fillBrush;
    chartLegend.FontSize = chartFontSize;
    chartLegend.FontFamily = fontFamily;
    chartLegend.FontStretch = fontStretch;
    chartLegend.FontStyle = fontStyle;
    chartLegend.FontWeight = fontWeight;
    chartLegend.Foreground = foreground;
    chartLegend.Stroke = stroke;
    chartLegend.StrokeThickness = strokeThickness;
    chartLegend.Orientation = Orientation.Vertical;
    chartLegend.Alignment = GrapeCity.Windows.SpreadSheet.Data.LegendAlignment.TopCenter;
    chartLegend.Text = "Legend";
    chartLegend.StrokeDashType = GrapeCity.Windows.SpreadSheet.Data.StrokeDashType.LongDashDotDot;
    chart.Legend = chartLegend;
    
    gcSpreadSheet1.ActiveSheet.Charts.Add(chart);
    
    VB.NET
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    Private strokeThickness As Double
    Private stroke As Brush
    Private fillBrush As Brush
    Private chartFontSize As Double
    Private axisFontSize As Double
    Private fontFamily As FontFamily
    Private fontStyle As FontStyle
    Private fontWeight As FontWeight
    Private fontStretch As FontStretch
    Private foreground As Brush
    
    strokeThickness = 2
    stroke = New SolidColorBrush(Colors.Green)
    fillBrush = New SolidColorBrush(Colors.Red)
    foreground = New SolidColorBrush(Colors.Blue)
    chartFontSize = 25
    axisFontSize = 25
    fontFamily = New FontFamily("Arial Narrow")
    fontStyle = FontStyles.Italic
    fontWeight = FontWeights.Bold
    fontStretch = FontStretches.ExtraExpanded
    
    Dim chart As New GrapeCity.Windows.SpreadSheet.Data.SpreadChart("Chart", GrapeCity.Windows.SpreadSheet.Data.SpreadChartType.BarStacked, "Sheet1!$A$1:$A$7", 0, 0, 200, 200)
    GcSpreadSheet1.ActiveSheet.SetArray(0, 0, New Object(,) {{1}, {2}, {3}, {4}, {5}, {6}, {7}, {8}, {9}, {10}})
    
    Dim chartLegend As New GrapeCity.Windows.SpreadSheet.Data.Legend()
    chartLegend.Fill = fillBrush
    chartLegend.FontSize = chartFontSize
    chartLegend.FontFamily = fontFamily
    chartLegend.FontStretch = fontStretch
    chartLegend.FontStyle = fontStyle
    chartLegend.FontWeight = fontWeight
    chartLegend.Foreground = foreground
    chartLegend.Stroke = stroke
    chartLegend.StrokeThickness = strokeThickness
    chartLegend.Orientation = Orientation.Vertical
    chartLegend.Alignment = GrapeCity.Windows.SpreadSheet.Data.LegendAlignment.TopCenter
    chartLegend.Text = "Legend"
    chartLegend.StrokeDashType = GrapeCity.Windows.SpreadSheet.Data.StrokeDashType.LongDashDotDot
    chart.Legend = chartLegend
    
    GcSpreadSheet1.ActiveSheet.Charts.Add(chart)
    
    See Also