listbox - Moving item from one list box to another list box (c# webforms) -

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i encountering odd issue whereby can move items 1 list box another, cannot move items original list box. here code:

private void movelistboxitems(listbox from, listbox to) {     for(int = 0; < first_listbox.items.count; i++)     {         if (first_listbox.items[i].selected)         {             to.items.add(from.selecteditem);             from.items.remove(from.selecteditem);         }        }     from.selectedindex = -1;     to.selectedindex = -1; }  protected void button2_click(object sender, eventargs e) {     movelistboxitems(first_listbox, second_listbox); }  protected void button1_click(object sender, eventargs e) {     movelistboxitems(second_listbox, first_listbox);  }

the button2 event works fine, button1 event not. list boxes not data bound , have manually added items them.

maybe there obvious missing here?

thanks in advance.

change this:

private void movelistboxitems(listbox from, listbox to) {     for(int = 0; < from.items.count; i++)     {         if (from.items[i].selected)         {             to.items.add(from.selecteditem);             from.items.remove(from.selecteditem);              // should this:             to.items.add(from.items[i]);             from.items.remove(from.items[i]);         }        }     from.selectedindex = -1;     to.selectedindex = -1; }

your original method using first_listbox in these 2 places, instead of from. also, imagine code not work if more 1 item selected.


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