如何在Dojo小部件模板中创建唯一的ID？ [英] How do I create unique IDs in a Dojo widget template?

问题描述

/ code>标签的code>属性需要一个HTML ID值，但Dojo小部件不应该包含ID，以防在同一页上创建多个实例。 p>

所以，有没有人有任何建议如何解决这些矛盾的需求？

解决方案

开箱即用，如果配置参数在构建时不存在，dijit注册表将如何设置WidgetID（this.id）：

 code> constructor：function（args）{args = args || {}; 
 this.id = args.id || dijit.registry.getUniqueId（this.declaredClass）
} 
  

模板与字符串替换，因此，如果您的课堂中有财产，请说 foo ，将此 模板的方式如下所示：

  templateString ='< div class =$ {foo}>'; 
  

在你的情况下，模板中的某个地方有一个label-> input对，它就像这个

 < div><！ -  domNode  - > 
< table> 
< td>< label for =$ {id} -edit-title>标题< / label>< / td> 
< td>< input id =$ {id} -edit-titletype =text/>< / td> 
< / table> 
< / div> 
  

所以

有点过时了，这是一个非常好的开始的地方：
http：/ /dojotoolkit.org/documentation/tutorials/1.6/templated/

继续阅读 dojo.Stateful get / set mechanism

最后转到 dijit._WidgetsInTemplateMixin 。

I have a Dojo widget that I'm writing that adds a label and an input box to the user's page.

The for attribute of a label requires an HTML ID value, but a Dojo widget should not contain IDs in case multiple instances are created on the same page.

So, does anyone have any suggestions on how to work around these conflicting needs?

解决方案

Out the box, this is how the dijit registry sets WidgetID (this.id) if the configuration parameter is not present while constructing:

constructor: function(args) { args=args || {};
  this.id = args.id || dijit.registry.getUniqueId(this.declaredClass)
}

Templates works with string replacements, so if you have a property in your class, say foo, the way to place this into the template is as such:

templateString = '<div class="${foo}">';

In your case, where somewhere in the template you have a label->input pair, it goes like this

<div><!--domNode-->
   <table>
       <td><label for="${id}-edit-title">Title</label></td>
       <td><input id="${id}-edit-title" type="text" /></td>
   </table>
</div>

So

Allthough it is a little bit outdated for time being, this is a very good place to start: http://dojotoolkit.org/documentation/tutorials/1.6/templated/

Continue reading on the dojo.Stateful get/set mechanism

Finally turn to dijit._WidgetsInTemplateMixin.

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