gistfile1.txt

<template v-for="selectedtype in data.selectedtypes">
  <dropdown class="form-group">
    <div class="input-group">
      <input class="form-control" type="text" v-model="startdate[selectedtype]">
      <div class="input-group-btn">
        <button class="btn btn-default" type="button" data-role="trigger">
          <i class="fa fa-calendar"></i>
        </button>
      </div>    
    </div>
    <template slot="dropdown">
      <li>
        <date-picker v-model="startdate[selectedtype]" format="yyyy-MM-dd" :today-btn="false" :clear-btn="false"></date-picker>
      </li>
    </template>
  </dropdown>
</template>