Vue Material Year Calendar plug-in: What should I do if the calendar does not update the selected status after activeDates.push?

Vue Material Year Calendar plug-in: Solutions for failed calendar selection status update after activeDates.push

When using the vue-material-year-calendar plugin, developers often encounter a problem: after adding dates to activeDates arrays, the calendar interface cannot update the selected status. This article analyzes and solves this problem.

Problem: Following the official documentation example, after clicking on the date, add the date information to the activeDates array, but the calendar interface does not update the selected status, although the console shows that activeDates array already contains the date.

The root cause: vue-material-year-calendar plug-in is related to the Vue version and the binding method of activeDates attributes. Vue 2 and Vue 3 have different solutions.

Vue 2 Solution:

The combination of v-model and :activeDates.sync may conflict with the plugin internal mechanism. Solution: Remove the .sync modifier, use the :activeDates binding directly, and manually update the activeDates array in the event handling function, and force the view to update. Modified code example:

<yearcalendar :activeclass="activeclass" :activedates="activedates" prefixclass="your_customized_wrapper_class" v-model="year"></yearcalendar>

Vue 3 Solution:

Vue 3 recommends using responsive APIs such as ref and reactive . You need to add a selected attribute to indicate the selected status in each date object and wrap the activeDates array with ref . Example:

 const activeDates = ref([
  { date: '2024-02-13', selected: true, className: '' },
  { date: '2024-02-14', className: 'red' },
  { date: '2024-02-15', className: 'blue' },
  { date: '2024-02-16', className: 'your_customized_classname' }
]);

Vue 3 can correctly track activeDates array changes and update views. The corresponding date click event handling function also needs to be modified to update the selected attribute.

Summary: Selecting the appropriate solution according to the Vue version can solve the problem of failed calendar selection status update after activeDates.push . The key is to make sure that changes in activeDates array trigger view updates correctly.

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