. Net C # the key and text of ListBox are separated, similar to the data of ListBox in Delphi.

// Define a class
Public class idname
...{
Private int myid;
Private string myname;
Public idname (int id, string name)
...{
This. myname = Name;
This. myid = ID;
}
Public int ID
...{
Get
...{
Return myid;
}
}

Public string name
...{

Get
...{
Return myname;
}
}

}

Private void button9_click (Object sender, eventargs E)
...{
// Bind
// By Lei Email: Landgis@126.com, yanleigis@21cn.com 2007.10.16

Arraylist list = new arraylist ();
List. Add (New idname (1, "AA "));
List. Add (New idname (2, "BB "));

Listbox3.datasource = List;
Listbox3.displaymember = "name ";
Listbox3.valuemember = "ID ";


}
// Call to obtain the value
Private void listbox3_click (Object sender, eventargs E)
...{
MessageBox. Show (listbox3.items [listbox3.selectedindex]. tostring ());
}