Custom Tag in HTMl

I want a shopify like functionality in my app which I am developing. Shopify template engine support this syntax in theme files.

<ul id="blogs">
  {% for article in blogs.frontpage.articles limit: 3 %}
  <li><a href="{开发者_C百科{ article.url }}">{{ article.title }}</a></li>
  {% endfor %}
</ul>

I also want this type of functionality for mine.

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Sounds like you need a templating engine for your app. You could use an off the shelf one such as the ones recommnded here.

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Your example code looks exactly like a Django template: if that's precisely what you want, you can use Django templates in .NET with IronPython (if you don't care about the kind of template language in use, @mopoke's answer gives a URL listing many others).