The Ajax button loaded by yii-Ajax is invalid.

1. Controller, partial rendering view method, the two parameters below are often omitted

   $ This-> renderpartial ('taskactions', array ('taskaction' => $ taskaction, 'task' => $ task,), false, true );

2. The Ajax OPERATION button loaded with Ajax is invalid in the project development today. The following figure shows the normal page for comparison.
3. Error Page: triggers ajax to load files
   
4. Normal page: triggers ajax to load files
   
5. The comparison shows that the jquery file is missing when loading the error page. Therefore, manually reload the jquery file, but it still does not work.
6. At last, we found that the default parameters are missing during rendering. $ processoutput and $ processoutput can solve the problem.
   
7. Processoutput process output. Otherwise, only the rendering result is output. The JS file generated will be filtered out.