MS SQLテーブルからデータテーブルを作成した後、これをExcelに表示する方法です。それを行うためのより速い方法がありますか?データテーブルから高速データへの高速挿入
.CopyFromRecordset
シートにSQL DBからデータを取得する方法速く
Private Sub ExportToExcel(ByVal dtTemp As DataTable, ByVal filepath As String)
Dim strFileName As String = filepath
Dim _excel As New Excel.Application
Dim wBook As Excel.Workbook
Dim wSheet As Excel.Worksheet
Dim newCulture As System.Globalization.CultureInfo
Dim OldCulture As System.Globalization.CultureInfo
OldCulture = System.Threading.Thread.CurrentThread.CurrentCulture
newCulture = New System.Globalization.CultureInfo(_
_excel.LanguageSettings.LanguageID(Office.MsoAppLanguageID.msoLanguageIDUI))
System.Threading.Thread.CurrentThread.CurrentCulture = newCulture
wBook = _excel.Workbooks.Add()
wSheet = wBook.ActiveSheet()
Dim dt As System.Data.DataTable = dtTemp
Dim dc As System.Data.DataColumn
Dim dr As System.Data.DataRow
Dim colIndex As Integer = 0
Dim rowIndex As Integer = 0
For Each dc In dt.Columns
colIndex = colIndex + 1
wSheet.Cells(1, colIndex) = dc.ColumnName
Next
For Each dr In dt.Rows
rowIndex = rowIndex + 1
colIndex = 0
For Each dc In dt.Columns
colIndex = colIndex + 1
wSheet.Cells(rowIndex + 1, colIndex) = dr(dc.ColumnName)
Next
Next
wSheet.Columns.AutoFit()
wBook.SaveAs(strFileName)
_excel.Visible = True
End Sub