vb.net datagridview更新不到数据源
xudof 2017-07-27 11:17:09 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
conn.Open()
' If ds.HasChanges() Then
Dim ocb As New OleDbCommandBuilder(da)
da.Update(ds, "dt1")
ds.Tables("dt1").AcceptChanges()
MessageBox.Show("更新成功")
conn.Close()
' End If
Catch ex As Exception
MessageBox.Show("更新失败!>_<")
End Try
End Sub
‘’请问以上代码执行时显示更新失败是什么原因???