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Position popup open in Vue DropDownButton component

Popup open position can be changed according to the requirement. Popup open position can be changed in open event by setting top and left for the popup element.

In the following example, the top position of the popup element is changed in open event.

Source
Preview
app.vue
<template>
<ejs-dropdownbutton id="ddBtn" :items='items' cssClass= 'e-caret-up' :open='onOpen'>Clipboard</ejs-dropdownbutton>
</template>

<script>
import Vue from 'vue';
import { DropDownButtonPlugin } from "@syncfusion/ej2-vue-splitbuttons";
import { OpenCloseMenuEventArgs } from '@syncfusion/ej2-splitbuttons';
import { enableRipple } from '@syncfusion/ej2-base';

enableRipple(true);
Vue.use(DropDownButtonPlugin);

export default {
    data () {
        return {
            items:[
            {
                text: 'Cut'
            },
            {
                text: 'Copy'
            },
            {
                text: 'Paste'
            }]
        };
    },
    methods: {
        onOpen: function(args: OpenCloseMenuEventArgs) {
            args.element.parentElement.style.top = document.getElementById('ddBtn').ej2_instances[0].element.getBoundingClientRect().top - args.element.parentElement.offsetHeight +'px';
        }
    }
}
</script>

<style>
  @import '../node_modules/@syncfusion/ej2-base/styles/material.css';
  @import '../node_modules/@syncfusion/ej2-buttons/styles/material.css';
  @import '../node_modules/@syncfusion/ej2-popups/styles/material.css';
  @import '../node_modules/@syncfusion/ej2-splitbuttons/styles/material.css';
  .e-dropdown-btn{
      margin: 25% 5px 25px 30%;
  }
</style>