NPOI実世界ピボットの例

私は多くを検索しましたが、私はここでこの質問をしました。私の質問には満足のいく答えはありません。エクセルピボット（ワークシート1をピボットテーブル、ワークシート2をデータソースとして作成）を作成したいのですが、DataTableからDataSourceを作成することに問題はありません。しかし、DataSource（WorkSheet 2）にマッピングされている階層的な列と階層的な行と尺度を追加するためのガイダンス文書はありません。私はで行われたマッピングについてかなり確信している：NPOI実世界ピボットの例

var pt = pivotSheet.CreatePivotTable(new AreaReference(new CellReference("A2"), new CellReference(rowCount, columnCount -1)), new CellReference("A1"), dataSheet);

しかし、階層列と階層行と対策をマッピングする方法証拠はありません。

私はすでにあまりにも多くの私の時間を無駄にしているので、私は非常にひどく助ける必要があります。すべてのヘルプは...

よろしくefarukを理解されるであろう...ここで

出典

2016-07-22 efaruk

EPPlusは問題をスムーズに解決しました;）もっと良い文書化とコミュニティサポート... – efaruk

がEPPlusと私の解決策である[** ***]

public static class ExcelPivotHelper 
{ 
    public static void CreateExcelPivot(Stream outputStream, DataTable data, PivotSettings settings) 
    { 
     using (var pckg = new ExcelPackage()) 
     { 
      var book = pckg.Workbook; 
      var pivotSheet = book.Worksheets.Add("Pivot"); 
      var dataSheet = book.Worksheets.Add("Data"); 
      var dataRange = GenerateDataSheet(data, dataSheet); 
      GeneratePivotSheet(pivotSheet, dataRange, settings); 
      pckg.SaveAs(outputStream); 
     } 
    } 

    private static void GeneratePivotSheet(ExcelWorksheet pivotSheet, ExcelRangeBase dataRange, PivotSettings settings) 
    { 
     //var rowCount = data.Rows.Count; 
     //var columnCount = data.Columns.Count; 
     var pt = pivotSheet.PivotTables.Add(pivotSheet.Cells["A1"], dataRange, "PivotTable"); 

     pt.MultipleFieldFilters = true; 
     pt.RowGrandTotals = true; 
     pt.ColumGrandTotals = true; 
     pt.Compact = true; 
     pt.CompactData = true; 
     pt.GridDropZones = false; 
     pt.Outline = false; 
     pt.OutlineData = false; 
     pt.ShowError = true; 
     pt.ErrorCaption = "[error]"; 
     pt.ShowHeaders = true; 
     pt.UseAutoFormatting = true; 
     pt.ApplyWidthHeightFormats = true; 
     pt.ShowDrill = true; 
     pt.DataOnRows = false; 

     pt.FirstHeaderRow = 1; // first row has headers 
     pt.FirstDataCol = 1; // first col of data 
     pt.FirstDataRow = 2; // first row of data 

     pt.TableStyle = TableStyles.Medium6; 

     //pt.ColumGrandTotals = true; 
     //pt.RowGrandTotals = true; 
     //pt.GrandTotalCaption = "Genel Toplam"; 

     // pt.RowHeaderCaption = ""; 
     foreach (var column in settings.Columns) 
     { 
      var field = pt.Fields[column.Field]; 
      var pivotField = pt.ColumnFields.Add(field); 
      if (column.PivotDataType == PivotDataType.Date) 
      { 
       //pivotField.AddDateGrouping(eDateGroupBy.Days); 
      } 
     } 

     foreach (var row in settings.Rows) 
     { 
      var field = pt.Fields[row.Field]; 
      var pivotField = pt.RowFields.Add(field); 
      if (row.PivotDataType == PivotDataType.Date) 
      { 
       //pivotField.AddDateGrouping(eDateGroupBy.Days); 
      } 
     } 

     foreach (var measurement in settings.Measurements) 
     { 
      var field = pt.Fields[measurement.Field]; 
      var pivotField = pt.DataFields.Add(field); 
      pivotField.Format = measurement.DisplayFormat; 
      pivotField.Function = DataFieldFunctions.Sum; 
      pivotField.Name = measurement.Caption; 
     } 

    } 

    private static readonly Type[] NumericTypes = { typeof(decimal), typeof(double), typeof(float), typeof(int), typeof(long), typeof(short), typeof(byte) }; 
    private static ExcelRangeBase GenerateDataSheet(DataTable data, ExcelWorksheet dataSheet) 
    { 
     dataSheet.Hidden = eWorkSheetHidden.VeryHidden; 
     var range = dataSheet.Cells["A1"].LoadFromDataTable(data, true, TableStyles.Medium6); 
     range.AutoFitColumns(); 
     for (var i = 0; i < data.Columns.Count; i++) 
     { 
      var ix = i + 1; 
      var cell = dataSheet.Cells[2, ix, data.Rows.Count + 1, ix]; 
      var column = data.Columns[i]; 
      if (NumericTypes.Contains(column.DataType)) 
      { 
       cell.Style.Numberformat.Format = "#,##0"; 
      } 
      else if (column.DataType == typeof(DateTime)) 
      { 
       cell.Style.Numberformat.Format = "dd.MM.yyyy"; 
      } 
     } 

     return range; 
    } 
} 


public class PivotSettings 
{ 
    private string _generalTotalText = "Genel Toplam"; 
    private string _yesText = "Evet"; 
    private string _noText = "Hayır"; 
    private string _fileExtension = ".xlsx"; 

    /// <summary> 
    ///  Default ctor 
    /// </summary> 
    public PivotSettings() 
    { 
     Columns = new List<PivotItemSetting>(10); 
     Rows = new List<PivotItemSetting>(10); 
     Measurements = new List<MeasureSetting>(10); 
    } 

    /// <summary> 
    /// Column Item Settings 
    /// </summary> 
    public List<PivotItemSetting> Columns { get; set; } 

    /// <summary> 
    /// Row Item Settings 
    /// </summary> 
    public List<PivotItemSetting> Rows { get; set; } 

    /// <summary> 
    /// Measure Settings 
    /// </summary> 
    public List<MeasureSetting> Measurements { get; set; } 

    /// <summary> 
    ///  Display text for 'Genel Toplam' word. Default is 'Genel Toplam' 
    /// </summary> 
    public string GeneralTotalText 
    { 
     get { return _generalTotalText; } 
     set { _generalTotalText = value; } 
    } 

    /// <summary> 
    ///  Display text for 'Evet' word. Default is 'Evet' 
    /// </summary> 
    public string YesText 
    { 
     get { return _yesText; } 
     set { _yesText = value; } 
    } 

    /// <summary> 
    ///  Display text for 'Hayır' word. Default is 'Hayır' 
    /// </summary> 
    public string NoText 
    { 
     get { return _noText; } 
     set { _noText = value; } 
    } 

    /// <summary> 
    ///  Excel File Extension 
    /// </summary> 
    public string FileExtension 
    { 
     get { return _fileExtension; } 
     set { _fileExtension = value; } 
    } 
} 


/// <summary> 
///  Setting for Pivot Column and Row 
/// </summary> 
public class PivotItemSetting 
{ 
    private string _displayFormat = "{0}"; 

    /// <summary> 
    ///  Field Name 
    /// </summary> 
    public string Field { get; set; } 

    /// <summary> 
    ///  Desired data type of the field 
    /// </summary> 
    public PivotDataType PivotDataType { get; set; } 

    /// <summary> 
    ///  Desired display format string for field 
    /// </summary> 
    public string DisplayFormat 
    { 
     get { return _displayFormat; } 
     set { _displayFormat = value; } 
    } 

    /// <summary> 
    ///  Automatically filled by generation process. Don't fill manually. 
    /// </summary> 
    public int CalculatedItemCount { get; set; } 
} 

/// <summary> 
///  Pivot Measure Setting 
/// </summary> 
public class MeasureSetting 
{ 
    private string _displayFormat = "#,##0"; 

    /// <summary> 
    ///  Field Name 
    /// </summary> 
    public string Field { get; set; } 

    /// <summary> 
    ///  Measure Caption 
    /// </summary> 
    public string Caption { get; set; } 

    /// <summary> 
    ///  Type of Measure 
    /// </summary> 
    public MeasureType MeasureType { get; set; } 

    /// <summary> 
    ///  Desired display format string for measure 
    /// </summary> 
    public string DisplayFormat 
    { 
     get { return _displayFormat; } 
     set { _displayFormat = value; } 
    } 
} 

/// <summary> 
///  Masure type 
/// </summary> 
public enum MeasureType 
{ 
    /// <summary> 
    ///  Sum of the values for measure field 
    /// </summary> 
    Sum 
}

更新

うんDataTableには、あなたQUESなどの通常のDataTableは...です...私の場合のMemoryStreamには、ファイルのダウンロードとASP.Net MVCレスポンスを作成するために、ここで

は、カスタムタイプです：ストリームは、ストリームの任意のタイプは、あなたがそれを使用する方法に依存している

/// <summary> 
///  Settings for Pivot Table 
/// </summary> 
public class PivotSettings 
{ 
    private string _generalTotalText = "Genel Toplam"; 
    private string _yesText = "Evet"; 
    private string _noText = "Hayır"; 
    private string _fileExtension = ".xlsx"; 

    /// <summary> 
    ///  Default ctor 
    /// </summary> 
    public PivotSettings() 
    { 
     Columns = new List<PivotItemSetting>(10); 
     Rows = new List<PivotItemSetting>(10); 
     Measurements = new List<MeasureSetting>(10); 
    } 

    /// <summary> 
    /// Column Item Settings 
    /// </summary> 
    public List<PivotItemSetting> Columns { get; set; } 

    /// <summary> 
    /// Row Item Settings 
    /// </summary> 
    public List<PivotItemSetting> Rows { get; set; } 

    /// <summary> 
    /// Measure Settings 
    /// </summary> 
    public List<MeasureSetting> Measurements { get; set; } 

    /// <summary> 
    ///  Display text for 'Genel Toplam' word. Default is 'Genel Toplam' 
    /// </summary> 
    public string GeneralTotalText 
    { 
     get { return _generalTotalText; } 
     set { _generalTotalText = value; } 
    } 

    /// <summary> 
    ///  Display text for 'Evet' word. Default is 'Evet' 
    /// </summary> 
    public string YesText 
    { 
     get { return _yesText; } 
     set { _yesText = value; } 
    } 

    /// <summary> 
    ///  Display text for 'Hayır' word. Default is 'Hayır' 
    /// </summary> 
    public string NoText 
    { 
     get { return _noText; } 
     set { _noText = value; } 
    } 

    /// <summary> 
    ///  Excel File Extension 
    /// </summary> 
    public string FileExtension 
    { 
     get { return _fileExtension; } 
     set { _fileExtension = value; } 
    } 
} 

/// <summary> 
///  Setting for Pivot Column and Row 
/// </summary> 
public class PivotItemSetting 
{ 
    private string _displayFormat = "{0}"; 

    /// <summary> 
    ///  Field Name 
    /// </summary> 
    public string Field { get; set; } 

    /// <summary> 
    ///  Desired data type of the field 
    /// </summary> 
    public PivotDataType PivotDataType { get; set; } 

    /// <summary> 
    ///  Desired display format string for field 
    /// </summary> 
    public string DisplayFormat 
    { 
     get { return _displayFormat; } 
     set { _displayFormat = value; } 
    } 

    /// <summary> 
    ///  Automatically filled by generation process. Don't fill manually. 
    /// </summary> 
    public int CalculatedItemCount { get; set; } 
} 

/// <summary> 
///  Pivot Measure Setting 
/// </summary> 
public class MeasureSetting 
{ 
    private string _displayFormat = "#,##0"; 

    /// <summary> 
    ///  Field Name 
    /// </summary> 
    public string Field { get; set; } 

    /// <summary> 
    ///  Measure Caption 
    /// </summary> 
    public string Caption { get; set; } 

    /// <summary> 
    ///  Type of Measure 
    /// </summary> 
    public MeasureType MeasureType { get; set; } 

    /// <summary> 
    ///  Desired display format string for measure 
    /// </summary> 
    public string DisplayFormat 
    { 
     get { return _displayFormat; } 
     set { _displayFormat = value; } 
    } 
} 

/// <summary> 
///  Masure type 
/// </summary> 
public enum MeasureType 
{ 
    /// <summary> 
    ///  Sum of the values for measure field 
    /// </summary> 
    Sum 
} 

/// <summary> 
///  Pivot Item type 
/// </summary> 
public enum PivotDataType 
{ 
    /// <summary> 
    ///  Not Defined, Default 
    /// </summary> 
    None, 
    /// <summary> 
    ///  String 
    /// </summary> 
    String, 
    /// <summary> 
    /// Date Part of DateTime 
    /// </summary> 
    Date, 
    /// <summary> 
    /// DateTime 
    /// </summary> 
    DateTime, 
    /// <summary> 
    /// Numeric 
    /// </summary> 
    Numeric, 
    /// <summary> 
    /// Boolean 
    /// </summary> 
    Boolean 
}

よろしく...

出典

2016-07-23 05:17:16 efaruk

CreateExcelPivot（）の呼び出し方法の例も表示できますか？たとえば、Stream a System.IO.Streamですか？ DataTableはSystem.Data.DataTableですか？ –

また、PivotDataTypeは未認識です。 –

PivotDataType列挙型です。独自のストリームを使用できます。ストリームはIO.Streamで、DataTableは通常のデータ型です。 – efaruk

NPOI実世界ピボットの例

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