如何從數據表中導出到Excel中的WPF C＃文件

Question

我有一個DataTable，並希望它導出爲ex​​cel文件，它是一個WPF應用程序，我已經找到了所有解決方案都爲Web應用程序asp.net請幫助...

Answer 1

只是爲了使其更好可見，對於所有

Microsoft.Office.Interop.Excel.Application excel = null; 
Microsoft.Office.Interop.Excel.Workbook wb = null; 

object missing = Type.Missing; 
Microsoft.Office.Interop.Excel.Worksheet ws = null; 
Microsoft.Office.Interop.Excel.Range rng = null;  

try 
{ 
    excel = new Microsoft.Office.Interop.Excel.Application(); 
    wb = excel.Workbooks.Add(); 
    ws = (Microsoft.Office.Interop.Excel.Worksheet)wb.ActiveSheet; 

    for (int Idx = 0; Idx < dt.Columns.Count; Idx++) 
    { 
     ws.Range["A1"].Offset[0, Idx].Value = dt.Columns[Idx].ColumnName; 
    } 

    for (int Idx = 0; Idx < dt.Rows.Count; Idx++) 
    { // <small>hey! I did not invent this line of code, 
     // I found it somewhere on CodeProject.</small> 
     // <small>It works to add the whole row at once, pretty cool huh?</small> 
     ws.Range["A2"].Offset[Idx].Resize[1, dt.Columns.Count].Value = 
     dt.Rows[Idx].ItemArray; 
    } 

    excel.Visible = true; 
    wb.Activate(); 
} 
catch (COMException ex) 
{ 
    MessageBox.Show("Error accessing Excel: " + ex.ToString()); 
} 
catch (Exception ex) 
{ 
    MessageBox.Show("Error: " + ex.ToString()); 
} 

Answer 2

您可以從數據表中保存爲.csv（逗號分隔值文件）。這個文件可以在Excel中打開。

此外：無論是WPF或的WinForms，將因爲它的轉換代碼是寫在你的語言，即C＃，而不是具體到WPF或的WinForms在兩個相同的。

Answer 3

對我來說，做工精細謝謝你......有些人喜歡vb.net？

Dim excel As Microsoft.Office.Interop.Excel.Application = Nothing 
Dim wb As Microsoft.Office.Interop.Excel.Workbook = Nothing 

Dim missing As Object = Type.Missing 
Dim ws As Microsoft.Office.Interop.Excel.Worksheet = Nothing 
Dim rng As Microsoft.Office.Interop.Excel.Range = Nothing 

子ExcelFile（BYVAL DT作爲數據表）

Try 
     excel = New Microsoft.Office.Interop.Excel.Application() 
     wb = excel.Workbooks.Add() 
     ws = DirectCast(wb.ActiveSheet, Microsoft.Office.Interop.Excel.Worksheet) 

     For Idx As Integer = 0 To dt.Columns.Count - 1 
      ws.Range("A1").Offset(0, Idx).Value = dt.Columns(Idx).ColumnName 
     Next 

     For Idx As Integer = 0 To dt.Rows.Count - 1 
      ' <small>hey! I did not invent this line of code, 
      ' I found it somewhere on CodeProject.</small> 
      ' <small>It works to add the whole row at once, pretty cool huh?</small> 
      ' YES IT'S COOL Brother ... 
      ws.Range("A2").Offset(Idx).Resize(1, dt.Columns.Count).Value = dt.Rows(Idx).ItemArray 
     Next 

     excel.Visible = True 
     wb.Activate() 
    Catch ex As Exception 
     MessageBox.Show("Error accessing Excel: " & ex.ToString()) 

    End Try 

End Sub 

Answer 4

單程

ArrayList arr = (ArrayList)dataGridView.DataSource; 
dt = ArrayListToDataTable(arr); 

dataTable2Excel(dt, dataGridView, pFullPath_toExport, nameSheet); 

http://www.codeproject.com/Articles/30169/Excel-export-from-DatagridView

http://support.microsoft.com/default.aspx?scid=kb;en-us;317719