Ant Design Vue中动态增减表单项_antdesign 动态增减表单项

Ant Design Vue中动态增减表单项

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按钮【增加】弹出的界面中动态的添加删除输入框，输入内容后保存为数组值（可以拼接为字符串保存），【编辑】显示时传入数组，若是字符串，可以通过转化为数组
效果图（增加页面、编辑页面）

代码：

<template>
  <div>

  <div class="student-modal-container" >
    <a-form :form="form" :label-col="formItemLayout.labelCol" :wrapper-col="formItemLayout.wrapperCol">
      <a-row>
        <a-col :span="12" >
          <a-form-item label="消息1：">
            <a-select :disabled="type === 'view'" v-decorator="['category', {rules: validateRules.category, initialValue: formData.category}]" placeholder="请选择">
              <a-select-option
                v-for="item in options"
                :key="item.value"
                :value="item.value"
              >
                {{ item.label }}
              </a-select-option>
            </a-select>
          </a-form-item>
        </a-col>

          <a-col :span="12">
          <a-form-item label="消息2：">
            <a-select :disabled="type === 'view'" v-decorator="['messCategory', {rules: validateRules.messCategory, initialValue: formData.messCategory}]" placeholder="请选择">
              <a-select-option
                v-for="item in messOptions"
                :key="item.value"
                :value="item.value"
              >

                {{ item.label }}
              </a-select-option>
            </a-select>
          </a-form-item>
        </a-col>
      </a-row>

      <a-row v-for="item in keysList" :key="item">
        <a-col :span="12">
            <a-form-item label="内容" >
              <a-input
                placeholder="请输入内容"
                v-decorator="[
                  `${title}arr[${item}]`,
                  {
                    initialValue: arr[item] ? arr[item] : undefined,
                    rules: [{ required: true, message: '请输入内容' }]
                  }
                ]"
              style="width: 60%; margin-right: 8px"/>
              <template v-if="keysList.length > 1">

                  <a-icon
                          type="minus-circle"
                          class="dynamic-delete-button"
                          @click="removeRow(item)" />
<!--                </a-button>-->
              </template>
            </a-form-item>
          </a-col>
      </a-row>

       <a-row>
          <a-col :span="12">
              <a-form-item v-bind="formItemLayoutWithOutLabel">
                <a-button type="dashed" style="width: 60%" @click="addRow">
                  <a-icon type="plus-circle" /> 
                </a-button>
              </a-form-item>
          </a-col >
      </a-row>

    </a-form>
  </div>
  </div>
</template>
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script中的methods

<script>
  let id = 0;
  import { Select, Form, Input, Row, Col ,Button ,Icon } from 'ant-design-vue';
  
  const ASelectOption = Select.Option;
  const AFormItem = Form.Item;
  const PARTONE = 'partOne';

  export default {
    name: "EditForm",
    components: {
      ASelect: Select, ASelectOption, AForm: Form, AFormItem,
      AInput: Input, ARow: Row, ACol: Col,ATextarea: Input.TextArea,
      AButton: Button,
      AIcon: Icon,

    },
    data: function() {
      return {
        id: 0,
        keysList: [],
        validateRules: {
          category: [{required: this.type !== 'view', message: '消息不能为空'}],
          names: [{required: this.type !== 'view', message: '内容不能为空'}],
          messCategory: [{required: this.type !== 'view', message: '消息不能为空'}],

        },
        options: [
          { value: '33', label: '33' }
        ],
        messOptions: [
          { value: '22', label: '22' }
         
        ],

// 数据
        data: Object.assign({}, this.formData),
        formItemLayout: {
        labelCol: {
          xs: { span: 24 },
          sm: { span: 4 },
        },
        wrapperCol: {
          xs: { span: 24 },
          sm: { span: 20 },
        },
      },
      formItemLayoutWithOutLabel: {
        wrapperCol: {
          xs: { span: 24, offset: 0 },
          sm: { span: 20, offset: 4 },
        },
      },

        form: this.$form.createForm(this),
        arr: [],
      }

    },

    created () {
    // this.form = this.$form.createForm(this)
      this.form = this.$form.createForm(this, { name: 'StudentEditForm' });//StudentEditForm
      this.init();
  },


    props: {
      formData: {
        type: Object,
        default: () => {return {}}
      },
      type: {
        type: String,
        default: 'create'
      },
      title: {
        type: String,
        default: ''
      },
      wrapHeight: { // 表单容器的高度
      type: Number,
      default: 120
    },
    // arr: {
    //   type: Array,
    //   default: function () {
    //     return []
    //   }
    // }
    },

    methods: {
      handleCancel() {
        this.$emit('on-cancel')
      },
      handleConfirm(type) {
        this.$emit('on-confirm', type, this.data);
      },
      init () {
        const arr = []
        if (this.formData.arr !== undefined){
          this.arr = this.formData.arr
        }
        if (this.arr.length !== 0) {
          for (let i = 0; i < (this.formData.arr).length-1; i++) {
            arr.push(i)
            this.id = this.id + 1
          }
        }
        else{
          arr.push(0)
          this.id = this.id + 1
        }
      this.keysList = arr
    },
    // 移除某行
    removeRow (k) {
      if (this.keysList.length === 1) { // 如果存在可以移除所有行的情况，把条件改为this.keysList.length === 0即可
        return
      }
      this.keysList = this.keysList.filter(item => item !== k)
    },
    // 新增一行
    addRow () {
      this.id = this.id + 1
      this.keysList = this.keysList.concat(this.id)
    },

    }
  }
</script>
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样式

```html
<style lang="less" scoped>
  .student-modal-container{

    .ant-form{
      .ant-input-disabled, .ant-select-disabled {
        background: none;
        border: none;
        color: rgba(0,0,0,.65);
        font-weight: 700;
        cursor: auto;
        /deep/ .ant-select-selection{
          background: none;
          border: none;
          cursor: auto;
          .ant-select-arrow{
            display: none;
          }
        }
      }
    }

  .dynamic-delete-button {
  cursor: pointer;
  position: relative;
  top: 4px;
  font-size: 24px;
  color: #999;
  transition: all 0.3s;
}
.dynamic-delete-button:hover {
  color: #777;
}
.dynamic-delete-button[disabled] {
  cursor: not-allowed;
  opacity: 0.5;
}

  }
  .dynamic-wrap {
    padding-top: 10px;
    background-color: white;
    overflow-y: scroll;
    overflow-x: hidden;
    &::-webkit-scrollbar {
      width: 7px;
    }
    &::-webkit-scrollbar-thumb {
      background: #d8d8d8;
      border-radius: 10px;
    }
    &::-webkit-scrollbar-track-piece {
      background: transparent;
    }
  }
  .minusRowBtn {
    color: #f5222d;
    background: #fff1f0;
    border-color: #ffa39e;
    padding-right: 7px;
    padding-left: 7px;
    height: 29px;
    margin-left: 10px;
  }
  .addRowBtn {
    width: 70%;
    color: #1890ff;
    border-color: #91d5ff;
    margin: 0px 0px 20px 70px;
  }
</style>
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