[VB.NET]救助:将datagrid中的数据导入到excel中时遇到错误??

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救助:将datagrid中的数据导入到excel中时遇到错误??
Public Sub ExportToExcel(ByVal tb As DataTable)
If datagrid1.VisibleRowCount > 0 Then
Try
Dim datav As New DataView
datav = tb.DefaultView
Dim i, j As Integer
Dim rows As Integer = datav.Table.Rows.Count
Dim cols As Integer = datav.Table.Columns.Count
Dim DataArray(rows - 1, cols - 1) As String
For i = 0 To rows - 1
For j = 0 To cols - 1
If datav.Table.Rows(i).Item(j) Is System.DBNull.Value Then
Else
DataArray(i, j) = datav.Table.Rows(i).Item(j)
End If
Next
Next
Dim myExcel As Excel.Application = New Excel.Application
myExcel.Application.Workbooks.Add(True)
myExcel.Visible = True
For j = 0 To cols - 1
myExcel.Cells(1, j + 1) = datav.Table.Columns(j).ColumnName
Next
myExcel.Range( A2 ).Resize(rows, cols).Value = DataArray
Catch exp As Exception
MessageBox.Show( 数据导出失败!请查看是否已经安装了Excel , Me.Text, MessageBoxButtons.OK, MessageBoxIcon.Warning)
End Try
Else
MessageBox.Show( 没有数据! , Me.Text, MessageBoxButtons.OK, MessageBoxIcon.Information)
End If
End Sub

一直提示:数据导出失败!请查看是否已经安装了Excel,,,哪有错吗???帮忙一下,非常感激.....
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根据上面的描述，如果LZ确定准了office的话，可能是execl的版本问题；
加外，lz看下有没有引用系统自带的Microsoft excel 11.0 object library组件
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Debug一下

一直提示:数据导出失败!请查看是否已经安装了Excel

是因为中间段出现错误
程序抛异常处理到
Catch exp As Exception段

检查Try Catch段
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