How to fetch data from database and show in a label

public void FetchData_and_Show_in_Label()
   {
       String ConnStr = "Data Source=ServerName;Initial Catalog=DBNamae;User ID=UserName;Password='password';";
       String SQL = "SELECT QuestionText  FROM Questions";
       SqlDataAdapter Adpt = new SqlDataAdapter(SQL, ConnStr);
       DataSet question = new DataSet();
       Adpt.Fill(question);

       foreach (DataRow dr in question.Tables[0].Rows)
       {
           LblQuestion.Text += question.Tables[0].Rows[0]["QuestionText"].ToString() + "<br />";
       }
   }

"<form method='POST' action=''>";
if(!isset($a))
{
$_POST['a']=1
}
else
{
}
include('connection.php');
$s="SELECT * FROM questions LIMIT '$_POST['a'],1";
$res=mysql_query($s);
while($row = mysql_fetch_array($res))
{
echo $row['Question'];
}
$b=$_POST['a']+1;
echo "<input type='hidden' value='$b' name='a'>";
echo "<input type='submit' value='submit' name='submit'>";
?>