将文本框的内容添加到列表视图的已编辑列中

我的Windows应用程序中有一个listview.我可以在列表视图中编辑特定的列，并将文本框放置在该位置.
现在，我想将文本框文本添加到列表视图的编辑列中，此应用程序中不涉及数据绑定，下面是我的代码..

I have a listview in my windows application. I am able to edit particular column in listview and place textbox in that position.
Now, I want to add the textbox text into the listview edited column,No databinding involved in this application and my code is below..

void ListView1MouseDoubleClick(object sender, MouseEventArgs e)
        {
            ListViewHitTestInfo hit=listView1.HitTest(e.X,e.Y);
            foreach(ListViewItem mitem in listView1.Items)
            {
                if (mitem.Selected==true)
                  {
                                textBox1.Left = listView1.Left + hit.SubItem.Bounds.Left + 3;
                                textBox1.Top = listView1.Top + hit.SubItem.Bounds.Top;
                                textBox1.Width = hit.SubItem.Bounds.Width;
                                textBox1.Text = hit.SubItem.Text;
                                textBox1.Visible = true;
                                textBox1.Focus();
                                textBox1.SelectAll();

                }
            }
        }

void textBox1LostFocus(object sender, EventArgs e)
        {
            try
            {
                 //here i want the code for the text to be placed in the listview selected column.
            }
        
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

预先感谢，

thanks in advance,