本文通過一個具體事例來給大家演示，如何實現DevExpress XtraGrid網格控求平均值、和、最大最小值。

灰色背景部分的數據，分別實現求平均值、和、最大最小值。

代碼如下：

C#

using DevExpress.Data.PivotGrid;
using DevExpress.XtraPivotGrid;

// Get a reference to the CategoryName field.
PivotGridField field = pivotGridControl1.Fields["CategoryName"];
pivotGridControl1.BeginUpdate();
try {
   // Clear the custom total collection.
   field.CustomTotals.Clear();
   // Add four items to the custom total collection to calculate the Average, 
   // Sum, Max and Min summaries.
   field.CustomTotals.Add(PivotSummaryType.Average);
   field.CustomTotals.Add(PivotSummaryType.Sum);
   field.CustomTotals.Add(PivotSummaryType.Max);
   field.CustomTotals.Add(PivotSummaryType.Min);
   // Make the custom totals visible for this field.
   field.TotalsVisibility = PivotTotalsVisibility.CustomTotals; 
}
finally {
   pivotGridControl1.EndUpdate();
}

VB

Imports DevExpress.Data.PivotGrid
Imports DevExpress.XtraPivotGrid

' Get a reference to the CategoryName field.
Dim field As PivotGridField = pivotGridControl1.Fields("CategoryName")
pivotGridControl1.BeginUpdate()
Try
   ' Clear the custom total collection.
   field.CustomTotals.Clear()
   ' Add four items to the custom total collection to calculate the Average, 
   ' Sum, Max and Min summaries.
   field.CustomTotals.Add(PivotSummaryType.Average)
   field.CustomTotals.Add(PivotSummaryType.Sum)
   field.CustomTotals.Add(PivotSummaryType.Max)
   field.CustomTotals.Add(PivotSummaryType.Min)
   ' Make the custom totals visible for this field.
   field.TotalsVisibility = PivotTotalsVisibility.CustomTotals
Finally
   pivotGridControl1.EndUpdate()
End Try