DevExpress MVC Pivotgrid：如何 summarize/aggregate 在分组级别上有所不同

Question

我有一个 DevExpress MVC PivotGrid。它有一个 header，最高级别是季度，然后是月，然后是周。传递给网格的数据需要对周的数据求和，但对月的周数据求平均，对季度的数据（周或月）求平均。

网格截图如下：

我希望第 201632、201633、201634、201635 周为 0.1，但 2016 年 7 月也应为 0.1（因为这是平均值）并且与 9 月相同。那么2016年Q2、2016年Q4应该也有0.1（因为这是平均值）。

这是网格字段的代码

settings.Fields.Add(field =>
{
    field.Area = PivotArea.ColumnArea;
    field.AreaIndex = 0;
    field.TotalsVisibility = PivotTotalsVisibility.None;
    field.CellStyle.Wrap = DefaultBoolean.False;
    field.Width = 150;
    field.Caption = "Quarter Year";
    field.FieldName = "YYYYQ";
    field.CellStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
    field.Options.AllowSort = DefaultBoolean.False;
    field.Options.AllowFilter = DefaultBoolean.False;
});

settings.Fields.Add(field =>
{
    field.Area = PivotArea.ColumnArea;
    field.AreaIndex = 1;
    field.TotalsVisibility = PivotTotalsVisibility.None;
    field.CellStyle.Wrap = DefaultBoolean.False;
    field.Width = 150;
    field.Caption = "Month Year";
    field.FieldName = "YYYYMM";
    field.CellStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
    field.Options.AllowSort = DefaultBoolean.False;
    field.Options.AllowFilter = DefaultBoolean.False;
});

settings.Fields.Add(field =>
{
    field.Area = PivotArea.ColumnArea;
    field.AreaIndex = 2;
    field.CellStyle.Wrap = DefaultBoolean.False;
    field.Width = 150;
    field.Caption = "Work Week";
    field.FieldName = "YYYYWW";
    field.Options.AllowSort = DefaultBoolean.False;
    field.Options.AllowFilter = DefaultBoolean.False;
});

settings.Fields.Add(field =>
{
    field.Area = PivotArea.DataArea;
    field.FieldName = summaryField;
    field.Caption = summaryField;
    field.CellFormat.FormatType = FormatType.Numeric;
    field.CellFormat.FormatString = format;
});

我尝试使用

field.SummaryType = DevExpress.Data.PivotGrid.PivotSummaryType.Average;

在季度和月份中，但这没有效果。我尝试了很多其他方法，但似乎没有任何改变计算结果。

有什么建议吗？

Answer 1

我明白了。我需要使用自定义摘要类型

这是 PivotGrid 的代码

@using DevExpressPivotGridTest;

@{
    string summaryField = ViewBag.SummaryField;
    WWMMQ wwmmq = new WWMMQ();
}

@Html.DevExpress().PivotGrid(settings =>
{
    settings.Name = "PivotGridProject";
    settings.CallbackRouteValues = new { Controller = "PivotGrid", Action = "Project"};
    settings.OptionsPager.RowsPerPage = 100;
    settings.OptionsView.ShowFilterHeaders = false;

    settings.OptionsView.ColumnTotalsLocation = PivotTotalsLocation.Near;

    settings.CustomSummary = (sender, e) =>
    {
        int nbrWWs;
        string fieldName = "";

        if (e.ColumnField == null)
            fieldName = "";
        else
            fieldName = e.ColumnField.FieldName;


        switch (fieldName)
        {
            case "YYYYMM":
                nbrWWs = wwmmq.GetWorkWeeksInMonth(e.ColumnFieldValue.ToInt());
                e.CustomValue = e.SummaryValue.Summary.ToDecimal() / nbrWWs;
                break;

            case "YYYYQ":
                nbrWWs = wwmmq.GetWorkWeeksInQuarter(e.ColumnFieldValue.ToInt());
                e.CustomValue = e.SummaryValue.Summary.ToDecimal() / nbrWWs;
                break;

            case "YYYYWW":
            default:
                e.CustomValue = e.SummaryValue.Summary;
                break;
        }
    };

    settings.Fields.Add(field =>
    {
        field.Area = PivotArea.RowArea;
        field.AreaIndex = 0;
        field.FieldName = "ProjectName";
        field.Caption = "Project";
        field.Options.AllowFilter = DefaultBoolean.False;
    });

    settings.Fields.Add(field =>
    {
        field.Area = PivotArea.RowArea;
        field.AreaIndex = 2;
        field.FieldName = "SupplierName";
        field.Caption = "Supplier";
        field.Options.AllowFilter = DefaultBoolean.False;
    });

    settings.Fields.Add(field =>
    {
        field.Area = PivotArea.ColumnArea;
        field.AreaIndex = 0;
        field.TotalsVisibility = PivotTotalsVisibility.None;
        field.CellStyle.Wrap = DefaultBoolean.False;
        field.Width = 150;
        field.Caption = "Quarter Year";
        field.FieldName = "YYYYQ";
        field.CellStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
        field.Options.AllowSort = DefaultBoolean.False;
        field.Options.AllowFilter = DefaultBoolean.False;
    });

    settings.Fields.Add(field =>
    {
        field.Area = PivotArea.ColumnArea;
        field.AreaIndex = 1;
        field.TotalsVisibility = PivotTotalsVisibility.None;
        field.CellStyle.Wrap = DefaultBoolean.False;
        field.Width = 150;
        field.Caption = "Month Year";
        field.FieldName = "YYYYMM";
        field.CellStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
        field.Options.AllowSort = DefaultBoolean.False;
        field.Options.AllowFilter = DefaultBoolean.False;
    });

    settings.Fields.Add(field =>
    {
        field.Area = PivotArea.ColumnArea;
        field.AreaIndex = 2;
        field.CellStyle.Wrap = DefaultBoolean.False;
        field.Width = 150;
        field.Caption = "Work Week";
        field.FieldName = "YYYYWW";
        field.Options.AllowSort = DefaultBoolean.False;
        field.Options.AllowFilter = DefaultBoolean.False;
    });

    settings.Fields.Add(field =>
    {
        field.SummaryType = PivotSummaryType.Custom;

        field.Area = PivotArea.DataArea;
        field.FieldName = summaryField;
        field.Caption = summaryField;
        field.CellFormat.FormatType = FormatType.Numeric;
        field.CellFormat.FormatString = "n2";
    });
}).Bind(Model).GetHtml()

public class WWMMQ
{
    private List<MyDates> dates;   

    public WWMMQ()
    {
        dates = MyDates.Get();
    }

    public WWMMQ(string startDate, string endDate)
    {
        dates = MyDates.Get(startDate, endDate);
    }

    public int GetWorkWeeksInMonth(int month)
    {
        // some months have 4, some months have 5
        return dates.Count(d => d.YYYYMM == month);
    }

    public int GetWorkWeeksInQuarter(int quarter)
    {
        // most quarters have 13, some quarters have 14
        return dates.Count(d => d.YYYYQ == quarter);
    }

诀窍是定义自定义摘要函数。 DevExpress 已经计算了所有的聚合。对于周摘要，我只是像往常一样使用 Sum 值，但对于月和季度，我使用 Sum，但将其除以月或季度中的周数以获得平均值。

DevExpress MVC Pivotgrid：如何 summarize/aggregate 在分组级别上有所不同

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