C＃中CheckListBox的奇怪问题

Question

我正在玩的应用程序中有很多复选框。所以，我决定改用CheckedListBox。我使用下面的代码遍历列表...

private void CheckedListBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (CheckedListBox1.CheckedItems.Count != 0)
        {
            string x = "";
            for (int x = 0; x <= ServicesCheckedListBox3.CheckedItems.Count - 1; x++)
            {
                x = x + "Checked Item " + (x + 1).ToString() + " = " +                         ServicesCheckedListBox3.CheckedItems[x].ToString() + "\n";
            }
            Line.Add(x);
        }
    }

输出给了我这个......

System.Collections.Generic.List`1[System.String].

我很新，从未见过这个。应用程序运行良好，但输出不正确。有什么建议吗？

Answer 1

使用foreach迭代CheckedItems

foreach(string item in ServicesCheckedListBox3.CheckedItems)
{
    Line.Add(item)
}

Answer 2

private void checkedListBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    string x="";
    foreach(string chk in checkedListBox1.CheckedItems)
    {
        x = x + "Checked Item " + checkedListBox1.Items.IndexOf(chk).ToString() + " = " + chk + "\n";
    }
    MessageBox.Show(x);
}