c# - How to sync selection index between two ListBoxes -

i have 2 listboxes: listbox1, listbox2.

if select item in first listbox1, item of same index must automatically selected in listbox2. so, if select item 1 in listbox1 then, item 1 selected automatically in listbox2 , on.

not: found examples not work.

private void listboxcontrol2_selectedindexchanged(object sender, eventargs e)  { listboxcontrol5.selectedindex = listboxcontrol2.selectedindex; } 

edit:

i solved using selected index code in this answer in selectedvaluechanged event.

private void listboxcontrol2_selectedvaluechanged(object sender, eventargs e)     {         listboxcontrol5.selectedindex = listboxcontrol2.selectedindex;     } 

here's sample may want explore more, try add listboxto form (in sample 3 listboxes) should following:

and here's source select same index whenever click on item on it:

public partial class form1 : form {     public form1()     {         initializecomponent();         initializelistboxes();     }      private void initializelistboxes()     {         //populate listboxes         listbox1.items.add("apple");         listbox1.items.add("orange");         listbox1.items.add("mango");          listbox2.items.add("milk");         listbox2.items.add("cheese");         listbox2.items.add("butter");          listbox3.items.add("coffee");         listbox3.items.add("cream");         listbox3.items.add("sugar");          //subscribe same events         listbox1.selectedindexchanged += listbox_selectedindexchanged;         listbox2.selectedindexchanged += listbox_selectedindexchanged;         listbox3.selectedindexchanged += listbox_selectedindexchanged;     }      void listbox_selectedindexchanged(object sender, eventargs e)     {         listbox listbox = (listbox)sender;         listbox1.selectedindex = listbox.selectedindex;         listbox2.selectedindex = listbox.selectedindex;         listbox3.selectedindex = listbox.selectedindex;     } } 

what happens on initializelistboxes subscribe same event trigger selectedindexchanged event, , select appropriate item each of listbox.