Posting search results to textbox

hi guy i have a problem that i try every way to make Posting search results to textbox but always return nothing this is my code

private void btnNamesearch_Click(object sender, EventArgs e)
      {

         bool temp = false;
          SqlConnection con = new SqlConnection("Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=Educational System;Data Source=DREAMS");
          con.Open();
          SqlCommand cmd = new SqlCommand("SELECT EmpName, ExcutionOrder FROM Employee WHERE EmpName  ='" + txtusernameSearch.Text.Trim() + "'", con);
          SqlDataReader dr = cmd.ExecuteReader();
          while (dr.Read())
          {
              txtemployee.Text = dr["EmpName"].ToString();
              txtExcutionOrder.Text = dr["ExcutionOrder"].ToString();

              temp = true;
          }
          if (temp == false)
              MessageBox.Show("not found");

          con.Close();
          dr.Close();

      }

its work and when i make breakpoints it gets date but nothing display
and i have another problem that i have got 4 com boxes which fill in form load
suppose when i make search it should display the value of selected from search and this will make problem because it loads with form load ?? plz help really i think more but still need experiences through windows form thanks a lot

Tags: C#