AxisScaleBreakStyle.StartFromZero Propriété

Définition

Espace de noms:

System.Web.UI.DataVisualization.Charting

Assembly:

System.Web.DataVisualization.dll

Obtient ou définit une StartFromZero valeur d’énumération qui indique s’il faut démarrer le saut d’échelle de zéro.

public:
 property System::Web::UI::DataVisualization::Charting::StartFromZero StartFromZero { System::Web::UI::DataVisualization::Charting::StartFromZero get(); void set(System::Web::UI::DataVisualization::Charting::StartFromZero value); };

public System.Web.UI.DataVisualization.Charting.StartFromZero StartFromZero { get; set; }

member this.StartFromZero : System.Web.UI.DataVisualization.Charting.StartFromZero with get, set

Public Property StartFromZero As StartFromZero

Valeur de propriété

StartFromZero

Valeur StartFromZero d’énumération qui indique s’il faut démarrer le saut d’échelle de zéro.

Exemples

L’exemple de code suivant montre comment activer et personnaliser un saut d’échelle après l’ajout du Chart contrôle à l’aire de conception.

Imports System.Web.UI.DataVisualization.Charting

Private Function AddChartData()

    chart1.Series("Default").Points.Add(New DataPoint(1, 2))
    chart1.Series("Default").Points.Add(New DataPoint(2, 4))
    chart1.Series("Default").Points.Add(New DataPoint(3, 400000))
    chart1.Series("Default").Points.Add(New DataPoint(4, 3))

End Sub

Private Function AddScaleBreaks()

   ' Enable scale breaks.
   chart1.ChartAreas("Default").AxisY.ScaleBreakStyle.Enabled = True

   ' Show scale break if more than 25% of the chart is empty space.
   chart1.ChartAreas("Default").AxisY.ScaleBreakStyle.CollapsibleSpaceThreshold = 25

   ' Set the line width of the scale break.
   chart1.ChartAreas("Default").AxisY.ScaleBreakStyle.LineWidth = 2

   ' Set the color of the scale break.
   chart1.ChartAreas("Default").AxisY.ScaleBreakStyle.LineColor = Color.Red

   ' If all data points are significantly far from zero, the chart will calculate the scale minimum value.
   chart1.ChartAreas("Default").AxisY.ScaleBreakStyle.StartFromZero = StartFromZero.Auto

   ' Set the spacing gap between the lines of the scale break (as a percentage of the Y-axis).
   chart1.ChartAreas["Default"].AxisY.ScaleBreakStyle.Spacing = 2;

End Function

using System.Web.UI.DataVisualization.Charting

private void AddChartData()
{
   chart1.Series["Series1"].Points.Add(new DataPoint(1, 2));
   chart1.Series["Series1"].Points.Add(new DataPoint(2, 4));
   chart1.Series["Series1"].Points.Add(new DataPoint(3, 400000));
   chart1.Series["Series1"].Points.Add(new DataPoint(4, 3));
}

private void AddScaleBreaks()
{
   // Enable scale breaks.
   chart1.ChartAreas["ChartArea1"].AxisY.ScaleBreakStyle.Enabled = true;

   // Show scale break if more than 25% of the chart is empty space.
   chart1.ChartAreas["ChartArea1"].AxisY.ScaleBreakStyle.CollapsibleSpaceThreshold = 25;

   // Set the line width of the scale break.
   chart1.ChartAreas["ChartArea1"].AxisY.ScaleBreakStyle.LineWidth = 2;

   // Set the color of the scale break.
   chart1.ChartAreas["ChartArea1"].AxisY.ScaleBreakStyle.LineColor = Color.Red;

   // If all data points are significantly far from zero, the chart will calculate the scale minimum value.
   chart1.ChartAreas["ChartArea1"].AxisY.ScaleBreakStyle.StartFromZero = StartFromZero.Auto;

   // Set the spacing gap between the lines of the scale break (as a percentage of the Y-axis).
    chart1.ChartAreas["ChartArea1"].AxisY.ScaleBreakStyle.Spacing = 2;
}

Remarques

Si la StartFromZero propriété est définie Autosur , le graphique calcule automatiquement s’il faut démarrer le minimum d’échelle de l’axe Y à partir de la valeur la plus basse de la série ou de zéro.