el-select禁止下拉，点击弹出el-table表格，根据关键词进行搜索，并不清除el-select框里面的值

 1.el-select下拉框的默认值，点击下拉框，弹出el-table表格默认选中表格值

2.根据关键词进行搜索，并选中，不清除el-select原来值

隐藏表格行样式 

.el-table .hidden-row {
			    display: none;
				height: 0;
			 }

<el-select 
 size="mini" 
 ref="selectref" 
 @visible-change="visibleType" 
 v-model="dataForm.teacher"
 filterable 
 multiple 
 placeholder="请选择老师" 
 value-key="id">
	<el-option 
       v-for="item in teacherArray" 
       :key="item.id" 
       :label="item.name"
	   :value="{ 'id':item.id , 'name':item.name }">
		<span style="float: left">{{ item.name }}</span>
        <span style="float: right; color: #8492a6; 
        font-size: 13px;margin-right: 12px">
        {{ item.code }}</span>
	 </el-option>
</el-select>
 
<el-dialog 
    title="选择" 
    :visible.sync="isGive" 
    width="60%">
	 <div>
		<div>
			<el-input 
            v-model="inputName" 
            @input="filterData" 
            placeholder="请输入姓名进行搜索">
           </el-input>
		</div>
		<el-table 
            ref="multipleTable" 
            :row-class-name="tableRowClassName" 
            :data="teacherArray"			
            height="calc(100vh - 250px)" 
            tooltip-effect="dark" 
            style="width: 100%;"
			@selection-change="handleSelectionChange">
            <el-table-column 
             type="selection" label="" width="55">
			</el-table-column>
			<el-table-column 
              prop="name" label="姓名" width="120">
			</el-table-column>
			<el-table-column 
              prop="typeName" label="类型"
			  :filters="[{text: '专职', value: '专职'}, 
              {text: '兼职', value: '兼职'}, 
             ]"
			:filter-method="filterHandlerType">
			</el-table-column>
		  </el-table>
		</div>
		<span slot="footer" class="dialog-footer">
		<el-button size="mini" 
         @click="isGive = false">取 消</el-button>
		<el-button size="mini" type="primary" 
         @click="isGive = false">确 定</el-button>
		</span>
		</span>
</el-dialog>

data的数据

 data() {
      return {
       //选中的数据
       dataForm: {				
			teacher: '',			
		},
         // 表格的数据
       teacherArray: [
           {
              id: 58，
              name: "李敏"，
              school_id: "1"，
              school_name: "重庆"，
              show: true，
              type: 1，
              typeName: "专职"，
          }，
          {
              id: 54，
              name: "李敏1"，
              school_id: "1"，
              school_name: "重庆1"，
              show: true，
              type: 1，
              typeName: "兼职"，
          }，
          {
              id: 52，
              name: "李敏2"，
              school_id: "2"，
              school_name: "重庆2"，
              show: true，
              type: 1，
              typeName: "全职"，
          }，
          {
              id: 53，
              name: "李敏3"，
              school_id: "3"，
              school_name: "重庆3"，
              show: true，
              type: 1，
              typeName: "全职"，
          }
        ],
         //弹框
        isGive: false,
        //根据关键词进行搜索
        inputName：‘’
      }
    }

 methods方法

methods{
 
   // 是否显示下拉框
	visibleType(e) {
         //弹框
		this.isGive = true
		let list = []
		this.$nextTick(() => {
            //不显示下拉框
			this.$refs.selectref.blur();
             
			this.teacherArray.forEach(item => {
               //选中的参数
				this.dataForm.teacher.forEach(key => {
				     if (item.id ==key.id) {
							list.push(item)
						}
				})
			})
             //默认选中
			this.toggleSelection(list)
		})
	},
// 表格默认选中
toggleSelection(rows) {
  this.$nextTick(() => {
	if (rows) {
	 rows.forEach(row => {			            
   this.$refs.multipleTable.toggleRowSelection(row,true)
	  });
	}else {						 
        this.$refs.multipleTable.clearSelection();
	 }
	  });
},
// 是否隐藏行数据
tableRowClassName: function(row, index) {					
  if (row.row.show==false) {
	 return 'hidden-row';
   }
	return '';
},
//判断是否为空
isNotEmpty(s) {return s && s !== ''},
//根据输入的值判断是否显示行
filterData(e) {
 
  if (this.isNotEmpty(e)) {
	 this.teacherArray.filter(item => {
		if (item.name.indexOf(e) != -1) {
			 item.show=true
		 }else{
			 item.show=false
		 }
	 })
	}else{
	  this.teacherArray.forEach(item=>{
		item.show=true
		})
	}
},
//表格选中的值
handleSelectionChange(val) {
  let list = []
  val.forEach(item => {
		list.push({
			id: item.id,
			type: item.type,
			name: item.name
	     })
  })
   this.dataForm.teacher = list
},
//过滤
filterHandlerType(value, row, column) {
	return row.typeName === value;
},
}