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# bind

> NOTE: Ajax template (Dojo plugin) is deprecated and won’t be supported any longer.

Description

This tag will generate event listeners for multiple events on multiple sources, making an asynchronous request to the specified href, and updating multiple targets.

There’s a bug in IE6/IE7 which makes impossible to use the target’s attribute with a parent Div, because such Div’s content’s are overwritten with the tag’s loadingText . Resulting in an “undefined” message in the content’s, instead of the result of the request.

One possible alternative is to set showLoadingText=”false” and set the indicator attribute to an element showing the desired loading text or image (outside the div).

    <img id="loadingImage" src="images/loadingAnimation.gif" style="display:none"/>
    <s:div id="parentDiv">
        <s:form action="actionName">
            <s:submit id="btn" />
            <sx:bind sources="btn" events="onclick" targets="parentDiv" showLoadingText="false" indicator="loadingImage"/>
        </s:form>
    </s:div>

Parameters

#### Dynamic Attributes Allowed: false
#### Name | #### Required | #### Default | #### Evaluated | #### Type | #### Description
--- | --- | --- | --- | --- | ---
afterNotifyTopics | false |  | false | String | Comma delimmited list of topics that will published after the request(if the request succeeds)
ajaxAfterValidation | false | false | false | Boolean | Make an asynchronous request if validation succeeds. Only valid is 'validate' is 'true'
beforeNotifyTopics | false |  | false | String | Comma delimmited list of topics that will published before the request
errorNotifyTopics | false |  | false | String | Comma delimmited list of topics that will published after the request(if the request fails)
errorText | false |  | false | String | The text to display to the user if the is an error fetching the content
events | false |  | false | String | Comma delimited list of event names to attach to
executeScripts | false | false | false | Boolean | Javascript code in the fetched content will be executed
formFilter | false |  | false | String | Function name used to filter the fields of the form.
formId | false |  | false | String | Form id whose fields will be serialized and passed as parameters
handler | false |  | false | String | Javascript function name that will make the request
highlightColor | false | none | false | String | Color used to perform a highlight effect on the elements specified in the 'targets' attribute
highlightDuration | false | 2000 | false | Integer | Duration of highlight effect in milliseconds. Only valid if 'highlightColor' attribute is set
href | false |  | false | String | The URL to call to obtain the content. Note: If used with ajax context, the value must be set as an url tag value.
id | false |  | false | String | The id to use for the element
indicator | false |  | false | String | Id of element that will be shown while making request
listenTopics | false |  | false | String | Topic that will trigger the remote call
loadingText | false | Loading... | false | String | Text to be shown while content is being fetched
notifyTopics | false |  | false | String | Comma delimmited list of topics that will published before and after the request, and on errors
separateScripts | false | true | false | String | Run scripts in a separate scope, unique for each tag
showErrorTransportText | false | true | false | Boolean | Set whether errors will be shown or not
showLoadingText | false | false | false | Boolean | Show loading text on targets
sources | false |  | false | String | Comma delimited list of ids of the elements to attach to
targets | false |  | false | String | Comma delimited list of ids of the elements whose content will be updated
transport | false | XMLHTTPTransport | false | String | Transport used by Dojo to make the request
validate | false | false | false | Boolean | Perform Ajax validation. 'ajaxValidation' interceptor must be applied to action

Examples

Without attaching to an event, listening to a topic (used to make an Ajax call):

     <sx:bind href="%{#ajaxTest}" listenTopics="/makecall"/>
     <s:submit onclick="dojo.event.topic.publish('/makecall')"/>

Attached to event ‘onclick’ on submit button:

     <img id="indicator" src="${pageContext.request.contextPath}/images/indicator.gif" alt="Loading..." style="display:none"/>
     <sx:bind id="ex1" href="%{#ajaxTest}" sources="button" targets="div1" events="onclick" indicator="indicator" />
     <s:submit theme="simple" type="submit" value="submit" id="button"/>

Submit form:

     <sx:bind id="ex3" href="%{#ajaxTest}" sources="chk1" targets="div1" events="onchange" formId="form1" />
     <form id="form1">
         <s:checkbox name="data" label="Hit me" id="chk1"/>
     </form>

Using beforeNotifyTopics:

     <script type="text/javascript">
     dojo.event.topic.subscribe("/before", function(event, widget){
         alert('inside a topic event. before request');
         //event: set event.cancel = true, to cancel request
         //widget: widget that published the topic
     });
     </script>

     <input type="button" id="button">
     <sx:bind id="ex1" href="%{#ajaxTest}" beforeNotifyTopics="/before" sources="button" events="onclick"/>

Using afterNotifyTopics and highlight:

     <script type="text/javascript">
     dojo.event.topic.subscribe("/after", function(data, request, widget){
         alert('inside a topic event. after request');
         //data : text returned from request(the html)
         //request: XMLHttpRequest object
         //widget: widget that published the topic
     });
     </script>

     <input type="button" id="button">
     <sx:bind id="ex1" href="%{#ajaxTest}" highlightColor="red" afterNotifyTopics="/after" sources="button" events="onclick"/>

Using errorNotifyTopics and indicator:

     <script type="text/javascript">
     dojo.event.topic.subscribe("/error", function(error, request, widget){
         alert('inside a topic event. on error');
         //error : error object (error.message has the error message)
         //request: XMLHttpRequest object
         //widget: widget that published the topic
     });
     </script>

     <input type="button" id="button">
     <img id="ind1" src="${pageContext.request.contextPath}/images/indicator.gif" style="display:none"/>
     <sx:bind href="%{#ajaxTest}" indicator="ind1" errorNotifyTopics="/error" sources="button" events="onclick"/>

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