主题：独占式编辑之一的项目的问题？

If e.DataRow("编辑者") = User.Name Then '如果编辑者是当前用户

    Return

End If

systemready = False

Dim cmd As New SQLCommand

cmd.ConnectionName = "仓管系统"

Dim id As Integer = e.DataRow("_Identify")

cmd.CommandText = "Select 用户名 From {入库表} Where [_Identify] = " & id

Dim nm As String = cmd.ExecuteScalar

If nm <> User.Name Then

    e.DataRow.Load()

End If

systemready = True

'msgbox(e.DataCol.Name)

Dim cmd2 As New SQLCommand

Dim exp2 As String  = "编辑者 Is Null And [_Identify] = " & e.DataRow("_Identify")

cmd2.ConnectionName = "仓管系统"

cmd2.CommandText = "Update {入库表} Set 编辑者 = '" & User.Name & "' Where " & exp2

If cmd2.ExecuteNonQuery = 1 Then

    systemready = False

    e.DataRow("编辑者") = User.Name

    systemready = True

Else

    cmd2.CommandText = "Select 编辑者 From {入库表} Where [_Identify] = " & e.DataRow("_Identify")

    Dim nm2 As String = cmd2.ExecuteScalar

    If nm2 > "" Then

        MessageBox.show(nm2 & "正在编辑此行!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)

    Else

        MessageBox.show("此行可能已经被删除,无法编辑!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)

    End If

    e.Cancel = True '取消编辑

End If