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Docs > DevExpress Pivot Grid Core Library > Pivot Grid Data Processing Modes > In-Memory Mode > In-Memory Mode Limitations
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    In-Memory Mode Limitations

    • 2 minutes to read

    The following article describes Pivot Grid’s In-Memory mode limitations that depend on the data processing engine.

    Note

    If you connect the Pivot Grid to the server mode data sources and OLAP cubes, the PivotGridOptionsData.DataProcessingEngine property is ignored because Pivot data processing engines calculate data on the client.

    Optimized Mode

    The following API are not supported in Optimized mode. The NotSupportedException occurs in Optimized mode for unavailable values, properties, and handled events.

    Events

    WinForms WPF ASP.NET
    PivotGridControl.CustomSummary PivotGridControl.CustomSummary ASPxPivotGrid.CustomSummary
    PivotGridControl.CustomGroupInterval PivotGridControl.CustomGroupInterval ASPxPivotGrid.CustomGroupInterval
    PivotGridControl.CustomUnboundFieldData PivotGridControl.CustomUnboundFieldData ASPxPivotGrid.CustomUnboundFieldData
    PivotGridControl.CustomFieldSort PivotGridControl.CustomFieldSort ASPxPivotGrid.CustomFieldSort

    Properties

    The following properties of the Pivot Grid’s field are not supported:

    WinForms WPF ASP.NET
    UnboundFieldName UnboundFieldName UnboundFieldName
    UnboundExpressionMode UnboundExpressionMode UnboundExpressionMode
    ExpressionFieldName ExpressionFieldName ExpressionFieldName
    FilterColumnName FilterColumnName FilterColumnName
    RunningTotal RunningTotal RunningTotal
    SummaryDisplayType SummaryDisplayType SummaryDisplayType

    The following properties of the Pivot Grid’s field are not supported when its value is set to Custom:

    Property Value
    PivotGridField.SummaryType PivotSummaryType.Custom
    PivotGridField.GroupInterval PivotGroupInterval.Custom
    PivotGridField.SortMode PivotSortMode.Custom

    The following properties of the Pivot Grid’s field are ignored when you use the Data Binding API:

    You can set the PivotGridFieldBase.DataBinding property to null to use them.

    You cannot use the CalculationBindingBase descendants to apply summary filter or sorting by summary when Pivot Grid operates with Optimized calculation engine.

    Legacy and LegacyOptimized

    Legacy and LegacyOptimized modes do not support the Data Binding API.

    WinForms WPF ASP.NET
    DataSourceColumnBinding DataSourceColumnBinding DataSourceColumnBinding
    ExpressionDataBinding ExpressionDataBinding ExpressionDataBinding
    OLAPExpressionBinding OlapExpressionBinding OLAPExpressionBinding
    RankBinding RankBinding RankBinding
    MovingCalculationBinding MovingCalculationBinding MovingCalculationBinding
    DifferenceBinding DifferenceBinding DifferenceBinding
    PercentOfTotalBinding PercentOfTotalBinding PercentOfTotalBinding
    RunningTotalBinding RunningTotalBinding RunningTotalBinding
    WindowExpressionBinding WindowExpressionBinding WindowExpressionBinding

    The PivotGridFieldBase.DataBinding property is ignored.

    You cannot use the control’s CreateDrillDownDataSource methods to request underlying data in the following events:

    WinForms WPF ASP.NET
    PivotGridControl.CustomSummary[1] PivotGridControl.CustomSummary[1] ASPxPivotGrid.CustomSummary[1]
    PivotGridControl.CustomFieldSort PivotGridControl.CustomFieldSort ASPxPivotGrid.CustomFieldSort
    PivotGridControl.CustomUnboundFieldData PivotGridControl.CustomUnboundFieldData ASPxPivotGrid.CustomUnboundFieldData
    PivotGridControl.CustomGroupInterval PivotGridControl.CustomGroupInterval ASPxPivotGrid.CustomGroupInterval
    Footnotes

    1. Call the PivotCustomSummaryEventArgs.CreateDrillDownDataSource() method to get the underlying data when you handle the CustomSummary event.