display number of rows was found

hi , i'm new here :-) , i have textbox with search button the result it's show , but if there is a way to count how many rows was found were cathing the data  form database ,,,,

note.

i'm using gridview + ado.net + gridview i handle all the events manually :-)

protected void btnSearch_Click(object sender, EventArgs e)         {
             if (txtSearch.Text == "")             {
                 lblMessage.Text = "";
                 lblMessage.Text = "Empty charchter, Try Again";
             }
              else  if(txtSearch.Text!="")             {
                    lblMessage.Text = "";
             string connect = ConfigurationManager.ConnectionStrings["Employee_TestConnectionString"].ConnectionString;
             string query = "Select EmployeeID,Name,Age,Mobile From Employee where EmployeeID=@EmployeeID";
             SqlConnection con = new SqlConnection(connect);
             SqlCommand cmd = new SqlCommand();
             try             {
                 SqlDataAdapter da = new SqlDataAdapter(cmd);
                 int x = GridView1.Rows.Count;
                 con.Open();
                 if (Convert.ToInt16(DropCatogry.SelectedValue) == 3)                 {
                     txtSearch.Visible = false;
                     bindgridview();
                 }
                 else if (Convert.ToInt16(DropCatogry.SelectedValue) == 1)                 {
                     cmd.Parameters.AddWithValue("@EmployeeID", txtSearch.Text);
                     cmd.CommandType = CommandType.Text;
                     cmd.CommandText = query;
                     cmd.Connection = con;
                     DataSet ds = new DataSet();
                     da.Fill(ds);
                     GridView1.DataSource = ds;
                   lblMessage.Text=  GridView1.Rows.Count.ToString() ;
                 //  lblMessage.Text=  ds.Tables.Count.ToString();
                     if (x == 0)                     {
                         lblMessage.Visible = true;
                         lblMessage.Text = "";
                         lblMessage.Text += "There Is No  Result ,Try Again";
                     }
                       else if (x > 0)                     {
                         lblMessage.Visible = true;
                         lblMessage.Text = "";
                         lblMessage.Text += string.Format("{
0}
 Rows Found!", x);
                         GridView1.DataBind();
                     }
                   }
                   else if (Convert.ToInt16(DropCatogry.SelectedValue) == 2)                 {
                     string query2 = "Select EmployeeID,Name,Age,Mobile From Employee where Name like '%" + txtSearch.Text + "%'";
                     cmd.CommandType = CommandType.Text;
                     cmd.CommandText = query2;
                     cmd.Connection = con;
                     DataSet ds = new DataSet();
                     da.Fill(ds);
                     GridView1.DataSource = ds;
                       if (x == 0)                     {
                         lblMessage.Visible = true;
                         lblMessage.Text += "There Is No  Result ,Try Again";
                     }
                       else if (x > 0)                     {
                         lblMessage.Visible = true;
                         lblMessage.Text += string.Format("{
0}
 Row Found!", x);
                         GridView1.DataBind();
                     }
                 }
             }
                 catch (Exception w)             {
                 string msg = "Error";
                 msg += w.Message;
                 throw new Exception(msg);
             }
                 finally                  {
                  con.Close();
                  con.Dispose();
                           }
             }
         }