vue項目中,用到了iview的Cascader級聯選擇省市區,以前用的是iview-area這個插件作的省市區下拉選擇,javascript
沒啥大問題,就是選擇省市區後,屏幕會抖動一下,體驗很差,又找不到解決辦法,vue
以後從新選擇了iview中的Cascaderjava
<FormItem label="省市區:" prop="chinaArea"> <Cascader v-model="eroomInfo.chinaArea" :data="chinaArea" @on-change="getArea" style="width: 250px"></Cascader> </FormItem>
getArea (value, selectedData) { const areaName = selectedData.map(item => item.label) let chinaArea = [...areaName] this.eroomInfo.chinaArea = chinaArea if (chinaArea.length === 3) { this.eroomInfo.province = chinaArea[0] this.eroomInfo.city = chinaArea[1] this.eroomInfo.district = chinaArea[2] } }
選擇省市區後,能拿到相應的參數,傳後臺,建立成功。iview
接下來就是修改列表:字體
後臺傳過來的是this
export function getChinaArea (selectedData, province, city, district) { let result = [] selectedData.forEach(item => { if (item.label === province) { result.push(item.value) } item.children.forEach(date => { if (date.label === city) { result.push(date.value) } date.children.forEach(ele => { if (ele.label === district) { result.push(ele.value) } }) }) }) return result }
而後引入寫的js文件,傳入參數便可獲得相應的參數,顯示在頁面spa
let province = this.eroomInfo.province let city = this.eroomInfo.city let district = this.eroomInfo.district this.eroomInfo.chinaArea = getChinaArea(this.chinaArea, province, city, district)
省市區格式:插件
附:還有一種巧辦法,把省市區寫在placeholder裏面,改變一下字體顏色,這樣也能夠實現效果code