c＃如何获取列表框中的选定项目是否已更改。 ？

Question

i understand listbox.selectedItem will get me the current item thats seletected in a listbox... how do i get if the current item has been changed. so i want to know if the user's selection has changed from what it was to a different item.

Answer 1

Subscribe to the SelectedIndexChanged event like this:

this.listBox1.SelectedIndexChanged += new System.EventHandler(this.listBox1_SelectedIndexChanged);

The listener is:

    private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
    {

    }

Add code in the listener above to react to the event.

Answer 2

您自然可以监听SelectedIndexChanged事件，这是Windows.Forms 。