Re: AjaxObserveField does not trigger action
Re: AjaxObserveField does not trigger action
- Subject: Re: AjaxObserveField does not trigger action
- From: Theodore Petrosky <email@hidden>
- Date: Wed, 25 Apr 2018 11:05:40 -0400
Kenan,
Did you see the examples of Ajax that come with the Wonder source?
also here is a link to the screencasts that may be useful.
https://wiki.wocommunity.org/display/WEB/Screencasts
<https://wiki.wocommunity.org/display/WEB/Screencasts>
You can also subscript to the iTunes podcasts. I think just about everything is
there.
Ted
> On Apr 25, 2018, at 8:32 AM, Samuel Pelletier <email@hidden> wrote:
>
> Hi,
>
> You should take a look into AjaxExample and AjaxExample2 project. The
> Dependent Lists in AjaxExample demonstrate how to build dependant popups.
>
> I noticed few missing things in your html :
>
> - Your need a woform around your popup. (That may be the cause of your
> javascript error.
>
> - You need to refresh an AjaxUpdateContainer that contains at least your
> second popup and add it's id in the "updateContainerID" binding of the first
> AjaxObserveField if you want the browser to display the updated choices.
>
> With the Ajax framework, the cycle is usually like this :
> 1- Some user action trigger data to be send to the server (with
> AjaxObserveField or AjaxSubmitButton)
> 2- A server side action is executed (action binding of
> AjaxObserveField, AjaxSubmitButton, AjaxHyperLink or AjaxUpdateLink)
> 3- User interface (html) is refreshed to display changes by refreshing
> an AjaxUpdateContainer, AjaxModalDialog or refreshing the page. This may be
> done with the "updateContainerID" binding or in the Java code in Ajax action
> with AjaxUpdateContainer.updateContainerWithID(updateContainerID, context);
> and AjaxModalDialog.update(context, title); or
> AjaxModalDialog.update(context, newContent, title);
>
> A user action may trigger any combinaison of these, you control everything.
> For example, you may uses AjaxObserveField to update server side data and
> save it without refreshing the html. You may want to update server value
> without saving it, refreshing a part of the interface only, ...
>
> Regards,
>
> Samuel
>
>
>> Le 25 avr. 2018 à 04:55, Kenan Esau <email@hidden
>> <mailto:email@hidden>> a écrit :
>>
>> Hi,
>>
>> I am trying to update one Popup when another Popup changes. I tried to use
>> this as a template:
>>
>> https://www.mail-archive.com/email@hidden/msg43630.html
>> <https://www.mail-archive.com/email@hidden/msg43630.html>
>>
>> But I never get that far since the the AjaxObserveField never triggers the
>> action in the underlying java...
>>
>>
>> <tr>
>> <td>PopUp:</td>
>> <td>
>> <webobject name = „Popup1" />
>> <webobject name = „Popup1Observer" />
>> </td>
>> </tr>
>>
>> Popup1 : WOPopUpButton {
>> id = „popupone";
>> list = allentries;
>> item = aEntry;
>> displayString = aEntry.name
>> selection = selectedEntry
>> }
>>
>> Popup1Observer : AjaxObserveField {
>> action = popup1Change;
>> id = „popupObserver";
>> observeFieldID = "popupone";
>> }
>>
>> popup1Change() in the underlying java is never called since there is an
>> error in the java-script on the client-side:
>>
>> As soon as I try to use an AjaxObserveField I always get an error in the
>> underlying javascript / prototype.js:6416 whenever I change the value of my
>> first popup
>>
>> getValue: function(element) {
>> element = $(element);
>> var method = element.tagName.toLowerCase();
>> return Form.Element.Serializers[method](element);
>> },
>>
>> element.tagname is always ‚undefined‘!?!?!
>>
>> Am I doing something wrong? Is there an example I could use for
>> AjaxObserveField and AjaxUpdateContainer?
>>
>>
>> Thanks for your Help!
>>
>> Kenan
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