[Vuejs]-Databinding issues using listbox in vuejs

This can be caused because you have no v-model on your <select> if you are trying to load the selected value from your database.

Also make sure your code used to retrive selectboxes from runs prior to your template rendering, in the created or mounted hooks.

Finally, make sure the data you retrieve is reactive (placed into a vuex store, or the data of your component, or a props)