element el-dialog下的table怎么默认选中

Question

el-dialog下的table怎么默认选中，下面是代码

<el-dialog title="配置" :visible.sync="conVisible" width="300" :before-close="optHandleClose">
      <el-form :label-position="'left'" label-width="100px">
        <el-form-item label="功能名称">
          <el-input type="text" v-model="optList.name" auto-complete="off" readonly></el-input>
        </el-form-item>
        <el-form-item label="功能代码">
          <el-input type="text" v-model="optList.code" auto-complete="off" readonly></el-input>
          <el-table :show-header="false" :data="optList.pageDate" border ref="table" style="width: 100%" @selection-change="handleSelectionChange">
            <el-table-column type="selection" width="55">
            </el-table-column>
            <el-table-column
              prop="name">
            </el-table-column>
            <el-table-column
              prop="code">
            </el-table-column>
          </el-table>
        </el-form-item>

      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="conVisible = false">取 消</el-button>
        <el-button type="primary" @click="optHandleConfirm" :loading="conBtnLoading">确 定</el-button>
      </span>
    </el-dialog>

效果图

数据

数据中有check的打开dialog就默认选中
求大神

Answer 1

楼上的兄弟已经说的很清楚了,dialog的open事件遍历下表格的数据，将check为checked数据用表格的toggleRowSelection方法设置选中

<el-dialog @open="handleOpen"></el-dialog>

handleOpen () {
    this.$nextTick(() => {
     this.tableData.forEach(item => {
       if (item.check === 'checked') {
         this.$refs.table.toggleRowSelection(item, true)
       }
     })
    })
}

Answer 2

dialog的open事件里遍历table数据根据table的toggleRowSelection()进行选中

Answer 3

toggleRowSelection(row, selected)

Answer 4

用楼上的方法，如果不懂了在看文档，去里面找methods
el-table