How to template If-Else structures in data-bound views?

There are a couple different ways that you can handle this type of code.

  • with an if/ifnot combination like you are now. This works fine and is not terribly verbose.

  • Michael Best’s switch/case binding (https://github.com/mbest/knockout-switch-case) is quite flexible and can let you easily handle this and more complicated ones (more states than true/false).

  • Another option is to use dynamic templates. You would bind an area to one or more templates with the template name being used based on an observable. Here is a post that I wrote on this topic a while back: http://www.knockmeout.net/2011/03/quick-tip-dynamically-changing.html. In your scenario, it might look like:

<td data-bind="template: $root.getCellTemplate"></td>

<script id="cellEditTmpl" type="text/html">
    <input type="text" name="email" data-bind="value: email" />
</script>

<script id="cellTmpl" type="text/html">
    <span data-bind="text: email"></span>
</script>

The getCellTemplate function could live wherever, but would be given the item ($data) as the first argument and would return the name of the template to use.

Leave a Comment

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)