TreeListCustomSummaryEventArgs.SummaryStage Property

Specifies a calculation stage.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.1.dll

NuGet Package: DevExpress.Blazor

Declaration

public TreeListCustomSummaryStage SummaryStage { get; }

Property Value

Type	Description
TreeListCustomSummaryStage	An enumeration value.

Available values:

Name	Description
Start	The CustomSummary event fires once at this stage before TreeList rows are processed. This allows you to initialize a summary value.
Calculate	The CustomSummary event fires for each data row in a TreeList. You can calculate a summary value at this stage.
Finalize	The CustomSummary event fires once at this stage after TreeList rows are processed. At this stage, you can finalize the summary calculation.

Remarks

The summary calculation consists of three stages:

Initialization

The CustomSummary event fires once at this stage. The event’s SummaryStage property value is Start. Use this stage to initialize a summary value (for example, reset internal counters).

Calculation

The CustomSummary event fires for each data row in a TreeList. The event’s SummaryStage property value is Calculate. Use this stage to calculate a summary value.

Finalization

The CustomSummary event fires once at this stage. The event’s SummaryStage property value is Finalize. Use this stage to assign the calculated summary value to the TotalValue property.

You can interrupt summary calculations at any time. To do so, set the TotalValueReady event argument to true.

Refer to the DxTreeListSummaryItem and TreeListCustomSummaryEventArgs class descriptions for more information and examples.