C# экспорт SQL в Excel шаблоны

Question

Я строю страницу для извлечения данных SQL в листы шаблонов Excel. Я запускаю исключение «Данный ключ не присутствовал в словаре». При отладке, он указывает на

public void AddField(string Column, dynamic Value) 
{ 
    AddField(_KeyList[Column.ToUpper()], Value); 
} 

часть "ExcelExport.cs"

Вот мой "ExcelExport.cs" код

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using OfficeOpenXml; 
using System.IO; 
using System.Reflection; 

namespace ScanPortal 
{ 
    public class ExcelExport 
    { 
     private FileInfo _TemplateFile; 
     private int _StartRow; 
     private int _CurrentRow; 
     private Dictionary<int, Dictionary<int, string>> _ValueGrid; 
     private Dictionary<string, int> _KeyList; 
     private Dictionary<int, int> _InsertList; 

     public ExcelExport(string Template = "", int StartRowIndex = 1, int KeyRow = 0) 
     { 
      if (Template != "") 
      { 
       _TemplateFile = new FileInfo(Template); 
      } 

      _InsertList = new Dictionary<int, int>(); 

      if (KeyRow > 0) 
      { 
       using (var package = new ExcelPackage(_TemplateFile)) 
       { 
        _KeyList = new Dictionary<string, int>(); 
        ExcelWorksheet worksheet = package.Workbook.Worksheets.First(); 
        int ColIndex = 1; 
        int NumBlank = 0; 
        do 
        { 
         object Value = worksheet.Cells[KeyRow, ColIndex].Value; 
         if (Value == null) { NumBlank++; ColIndex++; continue; } 
         NumBlank = 0; 
         _KeyList.Add(Value.ToString().ToUpper(), ColIndex); 
         ColIndex++; 
        } while (NumBlank < 5); 
       } 
      } 

      _StartRow = StartRowIndex; 
      _CurrentRow = _StartRow; 

      _ValueGrid = new Dictionary<int, Dictionary<int, string>>(); 
      _ValueGrid.Add(_StartRow, new Dictionary<int, string>()); 
     } 

     public void AddField(int Row, int Column, dynamic Value) 
     { 
      if (Column < 1 || Row < 1) throw new IndexOutOfRangeException(); 
      if (Value == null) Value = ""; 

      if (!_ValueGrid.ContainsKey(_CurrentRow)) 
      { 
       _ValueGrid.Add(Row, new Dictionary<int, string>()); 
      } 

      _ValueGrid[Row].Add(Column, Value.ToString()); 
     } 

     public void AddField(string Column, dynamic Value) 
     { 
      AddField(_KeyList[Column.ToUpper()], Value); 
     } 

     public void AddField(int Column, dynamic Value) 
     { 
      if (Column < 1) throw new System.IndexOutOfRangeException(); 
      if (Value == null) Value = ""; 

      _ValueGrid[_CurrentRow].Add(Column, Value.ToString()); 
     } 

     public void NextRow() 
     { 
      _CurrentRow++; 
      _ValueGrid.Add(_CurrentRow, new Dictionary<int, string>()); 
     } 

     public void InsertRow(int count = 1) 
     { 
      _CurrentRow++; 
      _ValueGrid.Add(_CurrentRow, new Dictionary<int, string>()); 
      _InsertList.Add(_CurrentRow, count); 
     } 

     public bool GenerateWorkbook(string FileName, bool DownloadSheet = true) 
     { 
      if (!FileName.ToUpper().Contains(".XLSX")) 
      { 
       FileName += ".xlsx"; 
      } 
      using (ExcelPackage pck = (_TemplateFile != null ? new ExcelPackage(_TemplateFile, true) : new ExcelPackage())) 
      { 
       ExcelWorksheet ws = pck.Workbook.Worksheets[1]; 

       foreach (var DictRow in _ValueGrid) 
       { 
        int RowIndex = DictRow.Key; 
        if (_InsertList.ContainsKey(RowIndex)) 
        { 
         ws.InsertRow(RowIndex, _InsertList[RowIndex]); 
        } 
        foreach (var DictColumn in DictRow.Value) 
        { 
         int ColumnIndex = DictColumn.Key; 
         string ColumnValue = DictColumn.Value; 

         ws.Cells[RowIndex, ColumnIndex].LoadFromText(ColumnValue); 
        } 
       } 

       if (DownloadSheet) 
       { 
        HttpResponse Response = System.Web.HttpContext.Current.Response; 
        Response.Clear(); 
        Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"; 
        Response.AddHeader("content-disposition", "attachment; filename=" + FileName); 
        Response.BinaryWrite(pck.GetAsByteArray()); 
        Response.End(); 
       } 
      } 

      return true; 
     } 
    } 
} 

Вот мой «ExportReports.aspx. cs "

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using OfficeOpenXml; 
using System.Web.UI; 
using System.Web.UI.WebControls; 

namespace ScanPortal 
{ 
    public partial class ExportReports : System.Web.UI.Page 
    { 
     Dictionary<int, string> DropDowns; 

protected void btnVisitation_Click(object sender, EventArgs e) 
     { 
      ExcelExport excel = new ExcelExport(Server.MapPath("JSPRC Visit Summary Data Template.xlsx"), 3, 2); 

      using (var db = new FormsDataContext()) 
      { 


       excel.AddField("agency", "SCAN"); 
      } 
      excel.GenerateWorkbook("Visit Summary Data"); 
     } 
    } 
} 

Answer 1

Понял. Я указывал на неправильный ряд на шаблоне excel.