ChartControl.ValidateDataMembers Property

Specifies whether to validate data members.

Namespace : DevExpress.XtraCharts

Assembly : DevExpress.XtraCharts.v25.2.UI.dll

NuGet Package : DevExpress.Win.Charts

Declaration

• C#
• VB.NET

public bool ValidateDataMembers { get; set; }

Public Property ValidateDataMembers As Boolean

Property Value

true if data members should be validated; otherwise, false. The default value is true.

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Remarks

• C#
• VB.NET

ChartControl chart = new ChartControl();
chart.ValidateDataMembers = true;

Dim chart As ChartControl = New ChartControl()
chart.ValidateDataMembers = True

When the ValidateDataMembers property is set to true , the Chart Control verifies whether data member fields exist in the data source. The following property values pass this validation:

• SeriesBase.ArgumentDataMember
• SeriesBase.ColorDataMember
• SeriesBase.ToolTipHintDataMember
• SeriesBase.ValueDataMembers
• SeriesDataSourceColorizer.SeriesColorMember
• SeriesDataSourceColorizer.SeriesKeyMember

If a field does not exist in the data source, the System.ArgumentException is thrown with the following message: “The data source does not contain a data member with the <field_name>.”

When the ValidateDataMembers property is set to false , the Chart displays available data source values.

See Also

ChartControl Class

ChartControl Members

DevExpress.XtraCharts Namespace