Databases
StackOverflow2013
Postsdbo
POTrying to use JSON to get cascading DDLs but not getting response
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POTrying to use JSON to get cascading DDLs but not getting response
    primarykey
    data
    text
    <p>I'm trying to create cascading DDLs.</p> <p>My aspx page:</p> <pre><code>&lt;form id="form1" runat="server"&gt; &lt;table&gt; &lt;tr&gt; &lt;td&gt;סוג שולחן&lt;/td&gt; &lt;td&gt;&lt;asp:DropDownList ID="ddlTableType" runat="server" /&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;קוד שולחן&lt;/td&gt; &lt;td&gt;&lt;asp:DropDownList ID="ddlTableCode" runat="server" /&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;הנחה קבועה לשולחן&lt;/td&gt; &lt;td&gt;&lt;asp:DropDownList ID="ddlDiscounts" runat="server" /&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/form&gt; </code></pre> <p>I'm populating the first DDL from DB and that is working fine.</p> <p>Now, for the second DDL i'm using this code:</p> <pre><code>$(document).ready( function() { $("#ddlTableType").change( function() { $('#ddlTableCode').html(''); var TypeID = $("#ddlTableType &gt; option:selected").attr("value"); $.getJSON('LoadTableCodes.ashx?ObjectType=' + TypeID, function(TableCodes) { alert('aaaaaaaaaaaaaa'); $.each(TableCodes, function() { alert(this['TableCode']); $("#ddlTableCode").append($("&lt;option&gt;&lt;/option&gt;").val(this['TableCode']).html(this['TableCode'])); }); }); } ); } </code></pre> <p>);</p> <p>When i'm browsing to LoadTablesCodes with a typeId im getting the JSON resould. This is working...</p> <p>My problem is with the js code i think, my <strong>$.getJSON</strong> function is not working (can't even get the alert inside the function to pop).</p> <p>Please, what am i doing wrong?</p> <p>10x</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USErez
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POTrying to use JSON to get cascading DDLs but not getting response
      1. This table or related slice is empty.
      1. VTUpMod
    1. COt-shooting tips: (1) is .change() being called at all? (2) use fiddler (http://www.fiddler2.com/fiddler2/) to check whether the json request was sent, and whether a reply came back.
      singulars
      1. POTrying to use JSON to get cascading DDLs but not getting response
      1. USOren Trutner
    2. COYes, change() is being called, when i put the alert befor the getJSON the pops...
      singulars
      1. POTrying to use JSON to get cascading DDLs but not getting response
      1. USErez
    3. CODid you try Firebug? http://getfirebug.com/
      singulars
      1. POTrying to use JSON to get cascading DDLs but not getting response
      1. USJonas H
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload