[Vuejs]-How to make vue dynamically filter options as we type in the search box?

Do you have the getFilenames method defined and working similar to the example on the docs for remote search? Since you have the :remote-method attribute defined on the el-select element, you need to make sure you provide a valid filter function.

If you just want to filter the option labels based on the input the user is typing into the select element, you might find the options filtering select element` cleaner to use.