关于vue-treeselect的基本用法

时间:2022-11-17 多秋浮沉度华年人气:0

vue-treeselect 是一个多选组件，具有对 Vue.js嵌套选项支持。

支持嵌套选项的单选和多选
模糊匹配
异步搜索
延迟加载（仅在需要时加载深度选项的数据）
键盘支持（使用Arrow Up & Arrow Down键导航，使用键选择选项Enter等）
丰富的选项和高度可定制的
支持多种浏览器

下面看下vue-treeselect的基本用法

1：首先需要先安装@riophae/vue-treeselect":"^0.0.37

这是vue官方的中文文档可以参考 https://www.vue-treeselect.cn/#node

$鍦ㄨ繖閲屾彃鍏ュ浘鐗囨弿杩? /> 2：闇€瑕佸紩鍏ヨ嚦vue椤甸潰浣跨敤 <pre><code>import Treeselect from "@riophae/vue-treeselect";import "@riophae/vue-treeselect/dist/vue-treeselect.css"; components: { Loadding, Treeselect, },</code></pre> 3：闇€瑕佸湪椤甸潰涓啓鍏?/strong> <pre><code> <div class="search_row_label">鍗曚綅绠＄悊鑼冨洿：</div> <div class="search_row_content"> <treeselect noResultsText="鏆傛棤缁撴灉" v-model="dwgxfw" clearValueText="鍒犻櫎" //鈥溍椻€濇寜閽殑鏍囬 :searchable="false" //鏄惁鍚敤鎼滅储鍔熻兘 :options="szxzList" //閫夐」鏁版嵁 :load-options="loadOptions" //鐢ㄤ簬鍔ㄦ€佸姞杞介€夐」 placeholder="璇烽€夋嫨" @select="changeSelect" //閫夋嫨涓€涓€夐」鍚庡彂鍑虹敤浜庨€夋嫨 @input="inputChange" //杈撳叆妗嗗€兼洿鏀瑰悗鍙戝嚭瑙﹀彂 > </treeselect></code></pre> 4：杩欓噷涓句緥瀹為檯搴旂敤 棣栧厛闇€瑕佸厛鑾峰彇鍒扮埗鑺傜偣鐨勫€?/strong> <pre><code> getParentLocalityName(){ this.getRequest(this.Jurisdiction,"s_kj/s_kj_02/s_kj_02_01/loadDiscritctTreeRootNode","").then(res=>{ // this.Loadding = false; //杩欓噷鍏堝垽鏂姸鎬? if(res.data.state==1){ let resData = res.data.data let objData = {} //瀹氫箟涓€涓┖瀵硅薄 objData.id = resData.localitycode; objData.label = resData.localityname; objData.name = resData.localitydesc; objData.children = null; this.szxzList.push(objData) //鍦ㄨ繖閲屽皢鑾峰彇鍒扮殑鏁版嵁浠ｅ叆 console.log(this.szxzList) }else{ this.Loadings = false; this.$Message.error(res.data.msg); } }).catch(error=>{ this.Loadings = false; })</code></pre> 5：褰撶偣鍑绘椂鍔犺浇瀛愭暟鎹?/strong> <pre><code> loadOptions({action,parentNode,callback}){ //杩欓噷鏈変笁涓弬鏁? action 鑾峰彇鍒扮殑鍊? parentNode 鍔犺浇瀛愰€夐」鏃舵樉绀? callback鎺ュ彈error鍙傛暟鐨勫嚱鏁? console.log(parentNode) let params={ parentLocCode: parentNode.id } this.getRequest(this.Jurisdiction,"s_kj/s_kj_02/s_kj_02_01/loadDiscrictTreeNode",urlPath(params)).then(res=>{ if(res.data.state==1){ if(res.data.data.length>0){ let resData =res.data.data let arr = [] //瀹氫箟绌烘暟缁? resData.forEach(item=>{ let objData={} objData.id = item.localitycode; objData.label = item.localityname; objData.name = item.localitydesc; console.log(item.localitylevel) if (item.localitylevel <=item.localitylevel+1) { //杩欓噷閫夋嫨闇€瑕佽幏鍙栧嚑涓瓙鑺傜偣杩涜鍒ゆ柇 objData.children = null objData.loading=false; } arr.push(objData) //灏嗚幏鍙栫殑鏁版嵁浠ｅ叆 }) parentNode.children = arr; callback(); } } }) }, changeSelect(n,i){ console.log(n) if (n.label == "闀挎睙娴佸煙") { this.dwgxfw = ""; } else { console.log(222) this.dwgxfw = n.label; this.dwglcode = n.id } }, inputChange(n, i) { if (n == undefined) { this.dwgxfw = ""; } },</code></pre> 6：瀹為檯鐨勬晥鏋滃浘 <img src=$

2：需要引入至vue页面使用

import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";

  components: {
    Loadding,
    Treeselect,

  },

3：需要在页面中写入

          <div class="search_row_label">单位管理范围：</div>
              <div class="search_row_content">
                <treeselect
                 noResultsText="暂无结果" 
                 v-model="dwgxfw"
                  clearValueText="删除"         //“×”按钮的标题
                  :searchable="false"           //是否启用搜索功能
                  :options="szxzList"           //选项数据
                  :load-options="loadOptions"   //用于动态加载选项
                  placeholder="请选择"
                  @select="changeSelect"        //选择一个选项后发出用于选择
                  @input="inputChange"          //输入框值更改后发出触发
                >
                
                </treeselect>

4：这里举例实际应用
首先需要先获取到父节点的值

  getParentLocalityName(){
      this.getRequest(this.Jurisdiction,"s_kj/s_kj_02/s_kj_02_01/loadDiscritctTreeRootNode","").then(res=>{
        // this.Loadding = false;
        //这里先判断状态
        if(res.data.state==1){
          let resData = res.data.data
          let objData = {}  //定义一个空对象
           objData.id = resData.localitycode;
          objData.label = resData.localityname;
          objData.name = resData.localitydesc;
          objData.children = null;
            this.szxzList.push(objData)  //在这里将获取到的数据代入
            console.log(this.szxzList)
        }else{
              this.Loadings = false;
              this.$Message.error(res.data.msg);
        }
      }).catch(error=>{
                this.Loadings = false;

      })

5：当点击时加载子数据

   loadOptions({action,parentNode,callback}){
  //这里有三个参数
  action   获取到的值
  parentNode  加载子选项时显示
  callback		接受error参数的函数
      console.log(parentNode)
      let params={
                parentLocCode: parentNode.id
      }
      this.getRequest(this.Jurisdiction,"s_kj/s_kj_02/s_kj_02_01/loadDiscrictTreeNode",urlPath(params)).then(res=>{
        if(res.data.state==1){
          if(res.data.data.length>0){
            let resData =res.data.data
            let arr = []   //定义空数组
            resData.forEach(item=>{
              let objData={}
              objData.id = item.localitycode;
              objData.label = item.localityname;
              objData.name = item.localitydesc;
              console.log(item.localitylevel)
               if (item.localitylevel <=item.localitylevel+1) {  //这里选择需要获取几个子节点进行判断
                objData.children = null
                   objData.loading=false;
              }
              arr.push(objData)  //将获取的数据代入
            })
           parentNode.children = arr;
            callback();

          }
        }
      })

    },  
    changeSelect(n,i){
      console.log(n)
   if (n.label == "长江流域") {
        this.dwgxfw = "";
      } else {
        console.log(222)
        this.dwgxfw = n.label;
        this.dwglcode = n.id
      }

    },
     inputChange(n, i) {
      if (n == undefined) {
        this.dwgxfw = "";
      }
    },

6：实际的效果图

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