c# listview控件上移下移功能函数

C# LISTVIEW控件使用方法

z直接上代码
//朝上移动功能函数
private void ListViewItemUpMove(ListView listView)
{
if (listView.SelectedItems.Count == 0)
{
return;
}
listView.BeginUpdate();
if (listView.SelectedItems[0].Index > 0)
{
foreach (ListViewItem listViewItem in listView.SelectedItems)
{
ListViewItem listViewSelectItem = listViewItem;
int indexSelectedItem = listViewItem.Index;
listView.Items.RemoveAt(indexSelectedItem);
listView.Items.Insert(indexSelectedItem - 1, listViewSelectItem);
}
}
listView.EndUpdate();
if (listView.Items.Count > 0 && listView.SelectedItems.Count > 0)
{
listView.Focus();
listView.SelectedItems[0].Focused = true;
listView.SelectedItems[0].EnsureVisible();
}
}

    //朝下移动功能函数
    private void ListViewItemDownMove(ListView listView)
    {
        if (listView.SelectedItems.Count == 0)
        {
            return;
        }
        listView.BeginUpdate();
        int IndexMaxSelectedItem = listView.SelectedItems[listView.SelectedItems.Count - 1].Index;

        if (IndexMaxSelectedItem < listView.Items.Count - 1)
        {
            for (int i = listView.SelectedItems.Count - 1; i >= 0; i--)
            {
                ListViewItem listViewSelectItem = listView.SelectedItems[i];
                int indexSelectItem = listViewSelectItem.Index;
                listView.Items.RemoveAt(indexSelectItem);
                listView.Items.Insert(indexSelectItem + 1, listViewSelectItem);
            }
        }
        listView.EndUpdate();
        if (listView.Items.Count > 0 && listView.SelectedItems.Count > 0)
        {
            listView.Focus();
            listView.SelectedItems[listView.SelectedItems.Count - 1].Focused = true;
            listView.SelectedItems[listView.SelectedItems.Count - 1].EnsureVisible();
        }
    }

目的是通过对listview控件中的选项进行上移动和下移动顺序的重新设置。