listview 数据移动

Question

如果是拖动的
AllowDrop 属性打开     private void listBox_FenLei_DragDrop(object sender, DragEventArgs e)  private void listBox_FenLei_DragOver(object sender, DragEventArgs e)写好  根据拖动后改变两个项的index 吧  就可以了 要是用按钮 意思是一样的

Answer 1

        /// <summary>
        /// 移上
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnUp_Click(object sender, EventArgs e)
        {
            if (lvwColumn.SelectedItems.Count == 0)
            {
                lvwColumn.Focus();
                return;
            }
            int sIndex = lvwColumn.SelectedItems[0].Index;
            int eIndex = lvwColumn.SelectedItems[lvwColumn.SelectedItems.Count - 1].Index;
            if (eIndex == 0)
            {
                lvwColumn.Focus();
                return;
            }
            ListViewItem sitem = (ListViewItem)lvwColumn.Items[sIndex - 1].Clone();
            lvwColumn.Items[sIndex - 1].Remove();
            lvwColumn.Items.Insert(eIndex, sitem);
            lvwColumn.Focus();
        }        /// <summary>
        /// 移下
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnDown_Click(object sender, EventArgs e)
        {
            if (lvwColumn.SelectedItems.Count == 0)
            {
                lvwColumn.Focus();
                return;
            }
            int sIndex = lvwColumn.SelectedItems[0].Index;
            int eIndex = lvwColumn.SelectedItems[lvwColumn.SelectedItems.Count - 1].Index;
            if (sIndex == lvwColumn.Items.Count - 1)
            {
                lvwColumn.Focus();
                return;
            }
            ListViewItem sitem = (ListViewItem)lvwColumn.Items[eIndex + 1].Clone();
            lvwColumn.Items[eIndex + 1].Remove();
            lvwColumn.Items.Insert(sIndex, sitem);
            lvwColumn.Focus();
        }