react 问题记录三

7.三元表达式 是否显示提交按钮(值运算用一对大括号包起来)：

{this.state.isTrue ? <FormItem style={{textAlign: 'right',marginTop:'140px'}}><Button type="primary" onClick={this.handleNameClick}>反馈分类{this.state.number} </Button></FormItem> : ""}

 

6.消息提示，模态框展示

//成功：

 Modal.success({//使用模态框的error模式，需要引入对应的组件
            title:'提示消息',
            content:'提交成功'
          });

//错误
Modal.error({//使用模态框的error模式，需要引入对应的组件
                            title:'错误消息',
                            content:hlresultMessage
                        })


//警告

5.点击事件函数

/*
  *  查询分类结果集
  * */
  handleClick = () => {
    alert(nameList.length);
    const params ={};
    params.swid = 15012243;
    this.docClassifyState.getClassifyResult(params);
  };





<Button type="primary" className='fgw-pull-right' onClick={this.handleClick}>查询分类结果</Button>

4.input框输入为数字，不能为小数

<FormItem {...formItemLayout}
                                              label="终止U位"
                                              hasFeedback>
                                        {getFieldDecorator('endNum', {
                                            rules: [{
                                                required: true, message: '请输入终止U位!',
                                            }],
                                            initialValue: this.isAdd() ? "" : this.hostState.hosts.endNum
                                        })(
                                            <InputNumber

                                                min={1}
                                                max={99}
                                                formatter={value => parseInt(value) || ""}
                                            />
                                        )}
                                    </FormItem>

3.react input框禁用

isAdd = () => this.props.match.params.id === 'add';

<FormItem {...formItemLayout}
                            label="机柜编号"
                            hasFeedback>
                    {getFieldDecorator('cabinetId', {
                      rules: [{
                        required: true, message: '请输入机柜编号!',
                      }],
                      initialValue: this.isAdd() ? "" : this.cabinetState.cabinet.cabinetId
                    })(
                      this.isAdd() ? <Input /> : <Input disabled="true"/>

                    )}
                  </FormItem>

2.渲染组件，需要通过另外的列表取值得操作

/*
     * 渲染table数据列，处理请求返回为空的情况
     * */
    dataSource = (hostPage,cabinetList) => {
        console.log('totalElements', hostPage.totalElements);
        if (hostPage.totalElements === undefined || hostPage.totalElements <= 0) {
            return [];
        }
      if (cabinetList.length === 0) {
        return [];
      }

        return hostPage.content.map(item => {
          let statusName = '';
          if(item.status === 0){
            statusName = '未使用'
          }else if(item.status === 1){
            statusName = '正常'
          }else{
            statusName = '预警'
          }
          let objRoom = cabinetList.find((obj)=> obj.cabinetId === item.cabinetId );
          let myRoomId = objRoom ? objRoom.roomId : '';
            return {
              ...item,
              status: statusName,
              roomId: myRoomId,
              /*address:cabinet.address,*/
              key: item.hostId,
            };
        });
    };

 

1.class 用状态获取操作

//const className = this.cabinetStatus(cabinet.status);
                {/*content = <p>
                  <span className={className}>&nbsp;&nbsp;&nbsp;&nbsp;</span>
                  {cabinet.name}
                </p>;*/}