This is a simple example in Yii2.0 to understand how you can write a custom component and use it inside your app.(basic template)
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How to learn Yii?!
Here is a step by step To-Do list for Yii beginners. The list is an advice of what tutorials and documentation you can walk through to get a full understanding of the Yii Framework. These can be a help to learn Yii.
Render Form in popup via AJAX (Create and Update) with ajax validation & Also load any page via ajax Yii 2.0 (2.3)
There are a few issues with the other solutions I originally used that I found from other wikis. I address the issues I had in this much simpler and shorter way. I am also going to explain what is going into way more detail than others to help people understand what's going on.
Adding Yii Search to Your Browser Search Box
The official Yii project site now supports OpenSearch. This means you can customize your browser's search box to enable direct search of the content in yiiframework.com. For example, by entering a Yii class name in the browser's search box, the corresponding class API page will be shown in the browser.
Displaying, Sorting and Filtering Model Relations on a GridView
One of the things you will find tricky to implement is the the sorting and filtering of a GridView's column that displays related model data.