title: How to display data on textbox based on selected value from dropdownlist
body: <p>I need data from database on my textbox when i choose the particular data in drop-down list.
  I do the following code but it give me the number instead of description.</p>
  
  <pre><code>int s1 = DropDownList3.SelectedIndex;
  
  SqlCommand query = new SqlCommand("Select description from vul_auto where finding_id= " + s1,con);
  
  TextBox3.Text =(query.ExecuteNonQuery()).ToString();
  </code></pre>