title: Using WriteAllText to write from ListView to the txt Document
body: <p>My questions:</p>
  
  <p>1.How can I place whole row with all subitems using  File.WriteAllText</p>
  
  <p>2.How can i make every row present in txt file without last one getting deleted from txt file</p>
  
  <pre><code>  private void txtFile_Click(object sender, EventArgs e)
    {
         File.WriteAllText(@txtFilePath.Text, listView1.SelectedItems[0].Text);//Showing only one subitem
    }
  </code></pre>