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POdynamic select list AJAX and insertion in database table through posting form
 

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  1. POdynamic select list AJAX and insertion in database table through posting form
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    <p>I am wondering to find a solution for my dynamic select list of cities, now I am successfully populated the cities but now unable to post the selected city to database.</p> <p>here is php file:</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;script type="text/javascript" src="show_cities.js"&gt; &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;?php session_start; //library include("conn.php"); ?&gt; &lt;form enctype='multipart/form-data' action='posting_process.php' method='post'&gt;"); &lt;!-- **************************** Country select list ********************** --&gt; Country: &lt;select name="country" onChange="showCities(this.value)"&gt; &lt;?php $sql = 'SELECT country_no, country_name FROM country '.'ORDER BY country_no'; $rs = mysql_query($sql); echo "&lt;option value='0'&gt;"."Select a Country"."&lt;/option&gt;\n "; while($row = mysql_fetch_array($rs)) { echo "&lt;option value=\"".$row['country_no']."\"&gt;".$row['country_name']."&lt;/option&gt;\n "; } ?&gt; &lt;/select&gt; City: &lt;div id="txtCity" class="city_no"&gt; &lt;input type=submit name=action value=Post&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>here is javascript: show_cities.js</p> <pre><code>// JavaScript Document /* &lt;script type="text/javascript"&gt; */ function showCities(str) { if (str=="") { document.getElementById("txtHint").innerHTML=""; return; } if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 &amp;&amp; xmlhttp.status==200) { document.getElementById("txtCity").innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","get_cities.php?q="+str,true); xmlhttp.send(); } /* &lt;/script&gt; */ </code></pre> <p>here is php file: get_cities.php</p> <pre><code>&lt;?php session_start; //library include("conn.php"); $q=$_GET["q"]; $sql="SELECT * FROM city WHERE country_no = ".$q; $result = mysql_query($sql); echo "&lt;select name='city'&gt;"; while($row = mysql_fetch_array($result)) { echo "&lt;option value=\"".$row['city_no']."\"&gt;".$row['city_name'] . "&lt;/option&gt;\n"; } echo "&lt;/select&gt;"; ?&gt; </code></pre> <p>I don't know how to mention the following which return / display the city regards:</p>
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    1. PTQuestion
    1. USMuhammad Nadeem
    1. USMuhammad Nadeem
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    1. PO
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      1. PTAnswer
    1. VO
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      1. POdynamic select list AJAX and insertion in database table through posting form
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. VTUpMod
    3. VO
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      1. VTUpMod
    1. COWhat happens when you submit the form ? Have you checked using Firebug?
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      1. POdynamic select list AJAX and insertion in database table through posting form
      1. USNick
    2. COnothing happens. the insert statement executed and all the values inserted in table with out this (city_no) one.
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      1. POdynamic select list AJAX and insertion in database table through posting form
      1. USMuhammad Nadeem
    3. CONot sure if this will resolve this issue. I have noted two things in your html mark-up 1. Form tag is not closed and <div id="txtCity" class="city_no"> is also not closed. Correct the same. Use firebug check the values that are passed while submitting the page.
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      1. POdynamic select list AJAX and insertion in database table through posting form
      1. USNick
 

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