CustomSummaryEventArgs.TotalValueReady Property

Gets or sets whether the Calculation stage of the custom summary calculation process should be skipped.

Namespace: DevExpress.XamarinForms.DataGrid

Assembly: DevExpress.XamarinForms.Grid.dll

NuGet Package: DevExpress.XamarinForms.Grid

Declaration

public bool TotalValueReady { get; set; }

Property Value

Type	Description
Boolean	true if the Calculation stage of the custom summary calculation process should be skipped; otherwise, false.

Remarks

The process of custom summary calculation consists of three stages:

• Initialization

  The CalculateCustomSummary event is raised once with the SummaryProcess parameter set to Start.

• Calculation

  The CalculateCustomSummary event is raised multiple times - once for each data row in the group or in the whole column. The SummaryProcess property is set to Calculate.

• Finalization

  The CalculateCustomSummary event is raised once with the SummaryProcess parameter set to Finalize.

The TotalValueReady property allows you to interrupt the process of summary calculation during the Start stage. You cannot interrupt the process in the other stages. This can be useful if you need to calculate a custom summary during the Start or Finalization stage while skipping the time-consuming Calculation stage.

If the TotalValueReady property is set to true, the Calculation stage is skipped and the Finalization stage starts immediately.