如下命令，当”业务名称“和”机房名称“都有内容时，”光缆名称“的下拉菜单无法正常进行显示；问题是不是出在第二个IF。该怎么写才正确？
Dim l As WinForm.ComboBox = e.Form.Controls("业务名称")
Dim i As WinForm.ComboBox = e.Form.Controls("机房名称")
If l.Value > "" And i.Value = ""
e.Sender.ComboList = DataTables("光缆纤芯应用台帐表").GetComboListString("光缆名称","业务名称='" & l.Value & "'")
Else
If l.Value > "" And i.Value > ""
e.Sender.ComboList = DataTables("光缆纤芯应用台帐表").GetComboListString("光缆名称","业务名称='" & l.Value & "'" And "机房名称='" & i.Value & "'")
Else
If l.Value = "" And i.Value > ""
e.Sender.ComboList = DataTables("光缆纤芯应用台帐表").GetComboListString("光缆名称","机房名称='" & i.Value & "'")
Else
e.Sender.ComboList = DataTables("光缆纤芯应用台帐表").GetComboListString("光缆名称")
End If
End If
End If
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Post By：2014/2/8 14:23:00 [显示全部帖子]
