vcl-dxchartcore-dot-tdxchartcustomseries-03809f68.md
Specifies the reference to the data binding class that corresponds to the active data access mode.
property DataBindingClass: TdxChartSeriesDataBindingClass read; write;
| Type | Description |
|---|---|
| TdxChartSeriesDataBindingClass |
The class-reference to the data binding class that corresponds to the active data access mode.
|
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:
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. |
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. |
TdxChartXYSeriesThe DataBindingClass property’s default value is TdxChartXYSeriesUnboundDataBinding.TdxChartSimpleSeriesThe DataBindingClass property’s default value is TdxChartSimpleSeriesUnboundDataBinding.
Footnotes
The DataBindingType property setter updates DataBindingClass and DataBinding property values according to the selected data access mode.
The DataBindingClass property setter updates DataBindingType and DataBinding property values according to the selected data access mode.
See Also