如何检索ListBox的ValueMember属性的值 [英] How to retrieve ValueMember property's value of ListBox

问题描述

我们同时具有一个列表框的DisplayMember和ValueMember属性，该列表框填充了表的2个字段.在选择列表框中的任何元素时，我们要获取ValueMember属性的值以从表中检索关联的记录.

为此，我们使用了ListBox1.SelectedValue，它返回"System.Data.DataRowView".

We have both DisplayMember and ValueMember properties of a listbox filled with 2 field of a table. On selecting any element in listbox, we want to get ValueMember property''s value to retrieve associated record from the table.

We used ListBox1.SelectedValue for this purpose which returns "System.Data.DataRowView".

listBox2.DataSource = MainDataSet.Tables["Members"];
                listBox2.DisplayMember = "MemberName";
                listBox2.ValueMember = "MemCode";
                MessageBox.Show(listBox2.SelectedValue.ToString());

推荐答案

您将需要创建自己的类以获取SelectedValue.
请注意如何在此USState 类. 100％29.aspx> msdn示例 [

You will need to create your own class to get the SelectedValue.
Notice how the listbox datasource is set to the USState class in this msdn example[^].

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