listbox selected item winform

Question

Listbox.SelectedItem = value對我不起作用。其實我想以編程方式改變選擇。我沒有要選擇的列表框的索引，但只有文本。實際上，顯示器部件由組合框提供。當組合框中的選擇更改時，生成的更改也將反映在列表框中。

 void PopulateList() 
    { 
     this.list.DataSource = (IList)ClassDsnManager.GetDataSourceNames(); 
     this.list.DisplayMember = "Name"; 
     this.list.ValueMember = "Driver"; 

    } 
void ComboSelectedIndexChanged(object sender, EventArgs e) 
     { 
     if (Combo.SelectedIndex != -1) 
     { 
      ClassDatabase selecteditem = (ClassDatabase)Combo.SelectedItem; 

      source.Text = selecteditem.source; 

      string destination= selecteditem.SqlConn; 
      if (!string.IsNullOrEmpty(destination)) 
      { 
       string[] connectionValue = connection.Split(Convert.ToChar(";")); 
       string dsnName = connectionValue[0].Substring(4, connectionValue[0].Length - 4); 
       // this is the list box whose value i want to set 
       lbDSN.SelectedItem = dsnName; 

      } 

     } 

    } 

Answer 1

解決方法1：在Combobox的SelectedIndexChanged簡單的寫

listBox1.SelectedItem = comboBox1.SelectedItem.ToString(); 

溶液2：變化Combobox的DropDownStyle到Simple。它將顯示Combobox，如Listbox。