我有这个 ultraGrid：
http://s4.postimg.org/fhnjs4w4d/Capture.png
我需要把带有红色标记的列中的自定义值传递给汇总单元格。
Infragistics允许我在汇总单元格中放置最大值、最小值、总和、平均值等，但我需要传递自定义值。
有什么帮助吗？
我有这段代码可以放置最大值：
Dim columnToSummarizeVlrAq As UltraGridColumn = ugbBens.DisplayLayout.Bands(0).Columns(ugbBensColVlrAq)
Dim summaryVlrAq As SummarySettings = .Add(ugbBensColVlrAq,SummaryType.Maximum, columnToSummarizeVlrAq, SummaryPosition.UseSummaryPositionColumn)
这里是解决方案：
创建一个新类：
Public Class MyCustomSummarySettings
Implements ICustomSummaryCalculator
Private valor As Object = 0
Public Sub New()
End Sub
Public Sub Val()
End Sub
Private Sub BeginCustomSummary(ByVal summarySettings As SummarySettings, ByVal rows As RowsCollection) Implements ICustomSummaryCalculator.BeginCustomSummary
valor = 0
End Sub
Private Sub AggregateCustomSummary(ByVal summarySettings As SummarySettings, ByVal row As UltraGridRow) Implements ICustomSummaryCalculator.AggregateCustomSummary
'Primeiro mês
If summarySettings.Key = "COL_DeprAntExVlrRv" Then
If row.Index = 0 Then valor = CDbl(row.Cells("COL_DeprAntExVlrRv").Value)
End If
If summarySettings.Key = "fltVlrDepreciavelAct" Then
If row.Index = 0 Then valor = CDbl(row.Cells("fltVlrDepreciavelAct").Value)
End If
End Sub
Private Function EndCustomSummary(ByVal summarySettings As SummarySettings, ByVal rows As RowsCollection) As Object Implements ICustomSummaryCalculator.EndCustomSummary
Return valor
End Function
End Class
并使用自定义的摘要类型调用类，就像这样：
Dim custumSummary As New MyCustomSummarySettings
summaryDepreciavel = .Add(ugbBensColDepreciavelAceite, SummaryType.Custom, custumSummary, columnToSummarizeDepreciavel, SummaryPosition.UseSummaryPositionColumn, Nothing) '7ª Coluna