Yii2 Kartik Dependent Dropdown

but why I got an error exception

для кого это?

Hello sir, how can we hide or disable the second drop down when we chose one of option in the first drop down?

sir can you provide get the data from the json api url in yii2 for dropdownlist

The video has no sound。。。Oops！！！

thanks a lot IS, i read you in stackoverflow. you're the man, my respect to you.

but how to install the widget