paparan x kluar dkat textfield bagi data yg nk di update

no source code nye...yg jd masalah bile lepas tekan update button dia akn ke page yg melibatkan code yg nix post ni iaitu update.php...value yg nix nk update tu x kluar kat page update ni...kat silapnyer???

<?php
$hostname_doktor = 'localhost';
$username_doktor = 'root';
$password_doktor = '';
$database_doktor = 'doktor';
$doktor = mysql_pconnect ($hostname_doktor, $username_doktor, $password_doktor) or trigger_error(mysql_error(), E_USER_ERROR());


$IdWarga = isset($_POST['IdWarga']);
$negara = isset ($_POST['negara']);

$sql = "UPDATE warganegara SET negara = '$negara' WHERE IdWarga = '$IdWarga'";
$query = mysql_query($sql) or die (mysql_error());

$sql = "SELECT negara FROM warganegara WHERE IdWarga='$IdWarga'";
$query = mysql_query($sql) or die (mysql_error());

while ($row = mysql_fetch_array($query)) {
$IdWarga = $row["IdWarga"];
$negara = $row["negara"];

}

mysql_free_result($query);
mysql_close();
?>


bhgian dkat textfield---> <td><label for="negara"></label>
<input type="text" name="negara" id="negara" value="<?php echo $row['negara']; ?>"></td>

while ($row = mysql_fetch_array($query)) { $IdWarga = $row["IdWarga"]; $negara = $row["negara"]; echo $negara }

Eddyz xbraper expert sgt php..Tp cuba letak coding yg warna biru tuh...
Nak tgk value tuh ada kuar x?

Skrg Nix nk kuarkan value tuh dkt textfield tuh ker?

Nnti cuba post screenshot kat sini..Senang skit nk tgk..

Rasanya mcm lupa tutup je code kt form tu.. cuba tgk.. <input type=...... />

So kod akn jd :

<input type="text" name="negara" id="negara" value="<?php echo $row['negara']; ?>"/></td>