Question

最近我一直致力于一个项目，旨在允许用户将DataGridView中完成的数据作为Excel表发送，首先必须将表保存在用户的PC中。我正在使用下面显示的代码：

Private Sub Bt2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bt2.Click
    Dim xlApp As Excel.Application
    Dim xlWorkBook As Excel.Workbook
    Dim xlWorkSheet As Excel.Worksheet
    Dim misValue As Object = System.Reflection.Missing.Value

    Dim i As Int16, j As Int16

    xlApp = New Excel.Application
    xlWorkBook = xlApp.Workbooks.Add(misValue)
    xlWorkSheet = xlWorkBook.Sheets("sheet1")


    For i = 0 To dg.RowCount - 2
        For j = 0 To dg.ColumnCount - 1
            xlWorkSheet.Cells(i + 1, j + 1) = dg(j, i).Value.ToString()
        Next
    Next

    xlWorkBook.SaveAs("C:\Users\Abstract\Desktop\file1.xls", Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue,
         Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue)
    xlWorkBook.Close(True, misValue, misValue)
    xlApp.Quit()

    releaseObject(xlWorkSheet)
    releaseObject(xlWorkBook)
    releaseObject(xlApp)

    MessageBox.Show("Over")
End Sub
Private Sub releaseObject(ByVal obj As Object)
    Try
        System.Runtime.InteropServices.Marshal.ReleaseComObject(obj)
        obj = Nothing
    Catch ex As Exception
        obj = Nothing
        MessageBox.Show("Exception Occured while releasing object " + ex.ToString())
    Finally
        GC.Collect()
    End Try
End Sub

用户单击该按钮将其DataGrid另存为Excel表格。但是，执行此操作后，我得到一个异常（在第一行，我将xlApp设置为Excel应用程序），并带有以下文本：

COM Exception Ocurred
Exception thrown: 'System.Runtime.InteropServices.COMException' in trimitere_excel.exe
Additional information: Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

我一直在寻找将近2天才能克服这个问题。如果您对我应该做的事情有任何了解，我会非常感激任何可以让我摆脱困境的建议！祝你今天愉快！ :)

Answer 1

也许这会有所帮助：

Imports Excel = Microsoft.Office.Interop.Excel
Imports Microsoft.Office
Imports Microsoft.Office.Interop


Private Sub Bt2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bt2.Click

Dim pathExcel As String = "C:\Users\Abstract\Desktop\file1.xls"
Dim xlApp As Excel.Application = New Excel.Application
Dim misValue As Object = System.Reflection.Missing.Value
Dim xlWorkBook As Excel.Workbook
xlWorkBook = xlApp.Workbooks.Add(misValue)
Dim xlWorksheet As Excel.Worksheet = xlWorkBook.Sheets("sheet1")

For i = 0 To dg.RowCount - 2
    For j = 0 To dg.ColumnCount - 1
        xlWorkSheet.Cells(i + 1, j + 1) = dg(j, i).Value.ToString()
    Next
Next

xlWorkBookSum.SaveAs(pathExcel)
xlWorkBookSum.Close()
xlApp.Quit()

releaseObject(xlWorkSheet)
releaseObject(xlWorkBook)
releaseObject(xlApp)

MessageBox.Show("Over")

End Sub

使用VB.NET将数据从DataGridView导出为Excel表

1 个答案: