IVIEW is not lost when the drop-down box Select search when a match is the focus of empty input box (remember to add ref empty input box data, because empty v-model can not be completely emptied, it is iview in a small bug)

<Select ref="vendorId" v-model="formInline.vendorId" @on-open-change="venSelect" filterable style="width: 162px;" clearable>

            <Option v-for="item in vendorList" :value="item.vendorId" :key="item.vendorId">

              {{ item.vendorLevel ? `${item.vendorLevel}-${item.venAbbName}-${item.vendorCode}` : `${item.venAbbName}-${item.vendorCode}` }}

            </Option>

          </Select>

 

 

 

venSelect(type){

        if(type === false){

          // suppliers not vote blank

          if(!this.formInline.vendorId){

            this.$refs.vendorId.query = ''

            return

          }

        }

      },