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V25.1
  • TdxChartCustomSeries.DataBindingClass Property

    Specifies the reference to the data binding class that corresponds to the active data access mode.

    Declaration

    property DataBindingClass: TdxChartSeriesDataBindingClass read; write;

    Property Value

    Type Description
    TdxChartSeriesDataBindingClass

    The class-reference to the data binding class that corresponds to the active data access mode.

    Remarks

    Use the DataBindingClass or DataBindingType property to switch between data access modes available for the series. Different TdxChartCustomSeries class descendants use different data binding setting classes:

    TdxChartXYSeries

    An XY series uses the following data binding classes depending on the DataBindingType property value:

    DataBindingType[1] Value DataBindingClass[2] Value Description
    'Unbound' TdxChartXYSeriesUnboundDataBinding An XY chart series is not bound to a dataset. You need to populate series with data points manually.
    'DB' TdxChartXYSeriesDBDataBinding An XY chart series connects to a dataset and loads all data records into memory.
    TdxChartSimpleSeries

    A simple series uses the following data binding classes depending on the DataBindingType property value:

    DataBindingType[1] Value DataBindingClass[2] Value Description
    Unbound TdxChartSimpleSeriesUnboundDataBinding A simple series is not bound to a dataset. You need to populate series with data points manually.
    'DB' TdxChartSimpleSeriesDBDataBinding A simple series connects to a dataset and loads all data records into memory.

    Default Value

    TdxChartXYSeries
    The DataBindingClass property’s default value is TdxChartXYSeriesUnboundDataBinding.
    TdxChartSimpleSeries
    The DataBindingClass property’s default value is TdxChartSimpleSeriesUnboundDataBinding.
    Footnotes
    1. The DataBindingType property setter updates DataBindingClass and DataBinding property values according to the selected data access mode.

    2. The DataBindingClass property setter updates DataBindingType and DataBinding property values according to the selected data access mode.

    See Also