c＃listBox DisplayMember

Question

c＃WinForms.Listbox。

listBox1.DataSource = ds.Tables[0].DefaultView; 
listBox1.DisplayMember = "Question"; 
listBox1.ValueMember = "idQuestion"; 

//for ValueMember showing... 
textBox2.Text = listBox1.SelectedValue.ToString(); 

//What I must use for DisplayMember showing? 
textbox3.Text = ?????????? 

Answer 1

对于无类型表，这可能不那么容易。组合框具有文本属性，用于列表框：

textbox3.Text = listBox1.SelectedItem; 

获取到'item'，但可能是DataRowView。你可以将它转换：
((DataRowViw) SelectedItem).Row[3]

Answer 2

这将与您
textbox3.Text = listBox1.GetItemText（listBox1.SelectedItem）工作;