C# listview添加combobox到单元格的实现代码

实现代码：

using system;
using system.collections.generic;
using system.componentmodel;
using system.data;
using system.drawing;
using system.linq;
using system.text;
using system.threading.tasks;
using system.windows.forms;

namespace windowsformsapplication1
{
  public partial class form1 : form
  {
    listviewitem lvi;
    public form1()
    {
      initializecomponent();
    }

    private void form1_load(object sender, eventargs e)
    {
      combobox1.visible = false;
      listview1.columns.add("第一列");
      listview1.columns.add("第二列");
      listview1.columns.add("第三列");
      this.combobox1.items.add("科比");
      this.combobox1.items.add("姚明");
      this.combobox1.items.add("杜兰特");
      this.combobox1.items.add("邓肯");
      listviewitem item;
      item = new listviewitem(1.tostring());
      item.subitems.add("姚明");
      item.subitems.add("科比");
      listview1.items.add(item);
      item = new listviewitem(2.tostring());
      item.subitems.add("邓肯");
      item.subitems.add("杜兰特");
      listview1.items.add(item);

    }

    private void listview1_mouseup(object sender, mouseeventargs e)
    {

      lvi = this.listview1.getitemat(e.x, e.y);
      if (lvi != null)
      {
        //获取选中行的bounds 
        rectangle rect = lvi.bounds;
        int lx = listview1.columns[0].width;
        int rx = listview1.columns[0].width + listview1.columns[1].width;
        // if (e.x > rx || e.x < lx)
        //{
        this.combobox1.visible = false;
        rect.x = listview1.left + listview1.columns[0].width + 2;
        rect.y = this.listview1.top + 2+rect.y;
        rect.width = listview1.columns[1].width + 2;
        this.combobox1.bounds = rect;
        this.combobox1.text = lvi.subitems[1].text;
        this.combobox1.visible = true; 
        this.combobox1.bringtofront();
        this.combobox1.focus();
        //}
        // int intcolindex = lvi.subitems.indexof(lvi.getsubitemat(e.x, e.y));
      }
    }

    private void combobox1_selectedindexchanged(object sender, eventargs e)
    {
      lvi.subitems[1].text = combobox1.text;
      // combobox1.visible = false;
    }

    private void combobox1_mouseleave(object sender, eventargs e)
    {
      lvi.subitems[1].text = combobox1.text;
     // combobox1.visible = false;
    }
  }
}