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POadd templated div to page multiple times with different ids
 

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    <p>I am using ASP.Net MVC along with Jquery to create a page which contains a contact details section which will allow the user to enter different contact details: </p> <pre><code> &lt;div id='ContactDetails'&gt; &lt;div class='ContactDetailsEntry'&gt; &lt;select id="venue_ContactLink_ContactDatas[0]_Type" name="venue.ContactLink.ContactDatas[0].Type"&gt;&lt;option&gt;Email&lt;/option&gt; &lt;option&gt;Phone&lt;/option&gt; &lt;option&gt;Fax&lt;/option&gt; &lt;/select&gt; &lt;input id="venue_ContactLink_ContactDatas[0]_Data" name="venue.ContactLink.ContactDatas[0].Data" type="text" value="" /&gt; &lt;/div&gt; &lt;/div&gt; &lt;p&gt; &lt;input type="submit" name="SubmitButton" value="AddContact" id='addContact'/&gt; &lt;/p&gt; </code></pre> <p>Pressing the button is supposed to add a templated version of the ContactDetailsEntry classed div to the page. However I also need to ensure that the index of each id is incremented. </p> <p>I have managed to do this with the following function which is triggered on the click of the button:</p> <pre><code>function addContactDetails() { var len = $('#ContactDetails').length; var content = "&lt;div class='ContactDetailsEntry'&gt;"; content += "&lt;select id='venue_ContactLink_ContactDatas["+len+"]_Type' name='venue.ContactLink.ContactDatas["+len+"].Type'&gt;&lt;option&gt;Email&lt;/option&gt;"; content += "&lt;option&gt;Phone&lt;/option&gt;"; content += "&lt;option&gt;Fax&lt;/option&gt;"; content += "&lt;/select&gt;"; content += "&lt;input id='venue_ContactLink_ContactDatas["+len+"]_Data' name='venue.ContactLink.ContactDatas["+len+"].Data' type='text' value='' /&gt;"; content += "&lt;/div&gt;"; $('#ContactDetails').append(content); } </code></pre> <p>This works fine, however if I change the html, I need to change it in two places. </p> <p>I have considered using clone() to do this but have three problems: </p> <p><strong>EDIT: I have found answers to questions as shown below:</strong> </p> <ol> <li>(is a general problem which I cannot find an answer to) how do I create a selector for the ids which include angled brackets, since jquery uses these for a attribute selector. <strong>EDIT:</strong> Answer use \ to escape the brackets i.e. <code>$('#id\\[0\\]')</code></li> <li>how do I change the ids within the tree.</li> </ol> <p><strong>EDIT:</strong> I have created a function as follows: </p> <pre><code>function updateAttributes(clone, count) { var f = clone.find('*').andSelf(); f.each(function(i){ var s = $(this).attr("id"); if (s!=null&amp;&amp; s!="") { s = s.replace(/([^\[]+)\[0\]/, "$1["+count+"]"); $(this).attr("id", s); }}); </code></pre> <p>This appears to work when called with the cloned set and the count of existing versions of that set. It is not ideal as I need to perform the same for name and for attributes. I shall continue to work on this and add an answer when I have one. I'd appreciate any further comments on how I might improve this to be generic for all tags and attributes which asp.net mvc might create. </p> <ol start="3"> <li>how do I clone from a template i.e. not from an active fieldset which has data already entered, or return fields to their default values on the cloned set. </li> </ol>
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