form的编辑与展示的切换(输入框，单选多选框，上传图片，颜色选择器)适用个人信息的展示与修改

Posted 2022-08-08 别Null.了

效果展示

 

输入框（el-input）：展示默认信息，编辑后展示所编辑内容。

单选多选框（el-select）：展示默认信息，选择后展示所选择内容。

上传图片（el-upload）：（用于展示头像）编辑时每次仅只能上传一张图片，上传完成后回显且隐藏上传框，删除图片后显示上传框。可对图片进行预览，判断上传文件的类型与大小。

颜色选择器（el-color-picker）：展示时选择器禁用，编辑状态可对选择器进行编辑。

实现代码

<template>
  <div>
    <el-button type="primary" @click="dialogFormVisible = true">可操作表单对话框</el-button>
    <el-dialog v-model="dialogFormVisible" title="用户信息">
      <el-form :model="form">
        <el-form-item label="用户姓名：" :label-width="formLabelWidth">
          <div v-if="isChange"> form.name </div>
          <el-input v-if="!isChange" v-model="form.name" class="name" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="性别：" :label-width="formLabelWidth">
          <div v-if="isChange"> form.region </div>
          <el-select v-if="!isChange" v-model="form.region">
            <el-option label="男" value="男"></el-option>
            <el-option label="女" value="女"></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="贷款类型：" :label-width="formLabelWidth">
          <div v-if="isChange">
            <div v-for="i in [0, 1, 2, 3, 4, 5]" :key="i" class="type-div"> form.value1[i] </div>
          </div>
          <el-select v-if="!isChange" v-model="form.value1" multiple placeholder="请选择" style="width: 240px">
            <el-option v-for="item in options" :key="item.value" :label="item.label" :value="item.value"></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="头像展示：" :label-width="formLabelWidth" class="" :rules=" trigger: 'manual' ">
          <div v-if="isChange" class="img">
            <!-- onerror是默认展示图片的地址 -->
            <img
              :src="dialogImageUrl"
              onerror="this.src='这里填的是默认上传图片的地址';this.onerror=null"
            />
          </div>
          <el-upload
            v-if="!isChange"
            v-model:file-list="fileList"
            action="#"
            list-type="picture-card"
            :auto-upload="false"
            :on-preview="handlePictureCardPreview"
            :on-remove="handleRemove"
            :before-upload="beforeUpload"
            :on-change="submitUpload"
            :limit="1"
            :class="objClass"
          >
            <el-icon><Plus /></el-icon>
          </el-upload>
          <!-- 预览图片 -->
          <el-dialog v-model="dialogVisible">
            <img w-full :src="dialogImageUrl" alt="Preview Image" />
          </el-dialog>
        </el-form-item>
        <el-form-item label="颜色选择：" :label-width="formLabelWidth">
          <div v-if="isChange">
            <el-button> form.FormColor </el-button>
            <el-color-picker
              v-model="form.FormColor"
              :disabled="true"
              class="color"
              :predefine="predefineColors"
            ></el-color-picker>
          </div>
          <div v-if="!isChange">
            <el-button> form.FormColor </el-button>
            <el-color-picker v-model="form.FormColor" class="color" :predefine="predefineColors"></el-color-picker>
          </div>
        </el-form-item>
      </el-form>
      <template #footer>
        <span class="dialog-footer" style="margin-top: 0">
          <el-button @click="handleChange">编辑</el-button>
          <el-button @click="dialogFormVisible = false">取消</el-button>
          <el-button type="primary" @click="isChange = true">确定</el-button>
        </span>
      </template>
    </el-dialog>
  </div>
</template>

<script lang="ts">
import  defineComponent, ref, reactive  from 'vue';
import type  UploadFile, UploadUserFile  from 'element-plus';

export default defineComponent(
  name: 'Operate',
  setup() 
    const objClass = ref( upLoadHide: true );
    const dialogFormVisible = ref(false);
    const formLabelWidth = '200px';
    const dialogImageUrl = ref('');
    const dialogVisible = ref(false);
    let isChange = ref(true);
    const predefineColors = ref(['#ff4500', '#ff8c00', '#ffd700', '#90ee90', '#00ced1', '#1e90ff', '#1900FF']);
    const fileList = ref<UploadUserFile[]>([
      
        // name: 'view.jpeg',
        url: '这里填的是默认图片的地址',
      ,
    ]);
    const options = [
       value: '唱歌', label: '唱歌' ,
       value: '跳舞', label: '跳舞' ,
       value: '画画', label: '画画' ,
       value: '啥也不会', label: '啥也不会' ,
    ];
    const form = reactive(
      name: '王小虎',
      region: '男',
      value1: [options[0].value, options[1].value, options[2].value, options[3].value],
      FormColor: 'rgba(255, 69, 0)',
    );
    const methods = 
      //图片预览
      handlePictureCardPreview(file: UploadFile) 
        dialogImageUrl.value = file.url!;
        dialogVisible.value = true;
      ,
      //图片删除
      handleRemove(file: UploadFile) 
        console.log(file);
        objClass.value.upLoadHide = false; // 删除图片后显示上传框
      ,
      //上传触发后
      submitUpload(file: UploadFile) 
        console.log('上传成功');
        dialogImageUrl.value = file.url!;
        objClass.value.upLoadHide = true; // 上传图片后让upLoadHide为真，隐藏上传框
      ,
      beforeUpload(file: any)  // 判断所上传的大小与类型
        if (file.type !== 'image/jpeg') 
          alert('请上传正确的图片');
         else if (file.size / 1024 / 1024 > 2) 
          alert('请上传小于2MB的图片');
        
      ,
      //编辑按钮
      handleChange() 
        isChange.value = false;
      ,
    ;
    console.log('111', form);
    return objClass,formLabelWidth,dialogFormVisible,dialogImageUrl,dialogVisible,predefineColors,fileList,options,form,...methods,isChange,
    ;
  ,
);
</script>

样式文件

<style>
/* 当upLoadHide为true时启用如下样式，即上传框的样式，若为false则不启用该样式 */
.upLoadHide .el-upload 
  display: none;


.name 
  width: 220px;


.type-div 
  background-color: #f5f3f1;
  border-radius: 6px;
  display: inline-block;
  margin-right: 10px;
  width: 60px;
  text-align: center;


.img 
  width: 120px;
  height: 120px;

</style>