焦点到窗口窗体应用程序中的列表框中的下一个项目

Question

While developing a Windows forms application , I'm having two ListBoxs and a move button. ListBox1 contains strings and ListBox2 is empty. Whenever I'm pressing the move button, the selected item in ListBox1 should be moved to ListBox2 .

I'm getting the default focus on first item on ListBox1 ? How can I change the focus to the very next element of the element moved to ListBox2 ?

Answer 1

Do you mean the element that you just moved to listbox2? It's not very clear.

After moving the item, you could just:

listBox2.SelectedIndex = listBox2.Items.Count - 1;

Answer 2

Agree it is not very clear, anyway if he meant the next element in the ListBox2 it would be null I guess as he just added the item at the end of the ListBox2 items.

But the next element in the ListBox1, would be selected by:

private void Move()
    {
        indexOfItemMoved = listBox1.SelectedIndex;

        //move operation

        listBox1.SelectedIndex = indexOfItemMoved; //or indexOfItemMoved+1 / -1 depending on the move operation
    }

But remember to check if there is any item at the indexOfItemMoved or you will encounter an exception.