Retrieve values from db to drop down in ant form












0














I created a form using this https://ant.design/components/form/ ant template. There for the drop down I need to retrieve values from database. But still I couldn't find a way to achieve.



I am using react js and I could get the values from database inside `componentDidMount()' method. But I couldn't find a way to pass it to the dropdown array defined in ant.



 for (var i = 0; i < array.length; i++) {
dropdownItems = [{
value: array[i],
label: array[i]
}
];
}


As in the above code I tried it to fetch the result to dropdownItems array. But since dropdownItems is readonly property, it was impossible. So how can we achieve this?










share|improve this question



























    0














    I created a form using this https://ant.design/components/form/ ant template. There for the drop down I need to retrieve values from database. But still I couldn't find a way to achieve.



    I am using react js and I could get the values from database inside `componentDidMount()' method. But I couldn't find a way to pass it to the dropdown array defined in ant.



     for (var i = 0; i < array.length; i++) {
    dropdownItems = [{
    value: array[i],
    label: array[i]
    }
    ];
    }


    As in the above code I tried it to fetch the result to dropdownItems array. But since dropdownItems is readonly property, it was impossible. So how can we achieve this?










    share|improve this question

























      0












      0








      0







      I created a form using this https://ant.design/components/form/ ant template. There for the drop down I need to retrieve values from database. But still I couldn't find a way to achieve.



      I am using react js and I could get the values from database inside `componentDidMount()' method. But I couldn't find a way to pass it to the dropdown array defined in ant.



       for (var i = 0; i < array.length; i++) {
      dropdownItems = [{
      value: array[i],
      label: array[i]
      }
      ];
      }


      As in the above code I tried it to fetch the result to dropdownItems array. But since dropdownItems is readonly property, it was impossible. So how can we achieve this?










      share|improve this question













      I created a form using this https://ant.design/components/form/ ant template. There for the drop down I need to retrieve values from database. But still I couldn't find a way to achieve.



      I am using react js and I could get the values from database inside `componentDidMount()' method. But I couldn't find a way to pass it to the dropdown array defined in ant.



       for (var i = 0; i < array.length; i++) {
      dropdownItems = [{
      value: array[i],
      label: array[i]
      }
      ];
      }


      As in the above code I tried it to fetch the result to dropdownItems array. But since dropdownItems is readonly property, it was impossible. So how can we achieve this?







      javascript reactjs ant






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Dec 28 '18 at 7:37









      M.CooperM.Cooper

      327




      327
























          1 Answer
          1






          active

          oldest

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          3














          you should store dropdown values in component's state..



          import { Select } from 'antd';
          class MyComponent extends Component {
          constructor(props){
          super(props);
          this.state = {
          dropdownItems: ,
          selectedValue: null
          }
          }

          componentDidMount(){
          fetch(api)
          .then(resp => resp.json())
          .then(dropdownData => {
          this.setState({
          dropdownItems: dropdownData.map(item => ({ value: item, label: item })) })
          })
          }

          handleChange = (value) => {
          this.setState({ selectedValue: value })
          }

          render(){
          const { dropdownItems, selectedValue} = this.state;
          return(
          <Select defaultValue={selectedValue} onChange={this.handleChange}>
          {dropdownItems.map((item, index) => <Select.Option value={item.value} key={index}>{item.label}</Select.Option>)}
          </Select>
          );
          }
          }





          share|improve this answer





















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            1 Answer
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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            3














            you should store dropdown values in component's state..



            import { Select } from 'antd';
            class MyComponent extends Component {
            constructor(props){
            super(props);
            this.state = {
            dropdownItems: ,
            selectedValue: null
            }
            }

            componentDidMount(){
            fetch(api)
            .then(resp => resp.json())
            .then(dropdownData => {
            this.setState({
            dropdownItems: dropdownData.map(item => ({ value: item, label: item })) })
            })
            }

            handleChange = (value) => {
            this.setState({ selectedValue: value })
            }

            render(){
            const { dropdownItems, selectedValue} = this.state;
            return(
            <Select defaultValue={selectedValue} onChange={this.handleChange}>
            {dropdownItems.map((item, index) => <Select.Option value={item.value} key={index}>{item.label}</Select.Option>)}
            </Select>
            );
            }
            }





            share|improve this answer


























              3














              you should store dropdown values in component's state..



              import { Select } from 'antd';
              class MyComponent extends Component {
              constructor(props){
              super(props);
              this.state = {
              dropdownItems: ,
              selectedValue: null
              }
              }

              componentDidMount(){
              fetch(api)
              .then(resp => resp.json())
              .then(dropdownData => {
              this.setState({
              dropdownItems: dropdownData.map(item => ({ value: item, label: item })) })
              })
              }

              handleChange = (value) => {
              this.setState({ selectedValue: value })
              }

              render(){
              const { dropdownItems, selectedValue} = this.state;
              return(
              <Select defaultValue={selectedValue} onChange={this.handleChange}>
              {dropdownItems.map((item, index) => <Select.Option value={item.value} key={index}>{item.label}</Select.Option>)}
              </Select>
              );
              }
              }





              share|improve this answer
























                3












                3








                3






                you should store dropdown values in component's state..



                import { Select } from 'antd';
                class MyComponent extends Component {
                constructor(props){
                super(props);
                this.state = {
                dropdownItems: ,
                selectedValue: null
                }
                }

                componentDidMount(){
                fetch(api)
                .then(resp => resp.json())
                .then(dropdownData => {
                this.setState({
                dropdownItems: dropdownData.map(item => ({ value: item, label: item })) })
                })
                }

                handleChange = (value) => {
                this.setState({ selectedValue: value })
                }

                render(){
                const { dropdownItems, selectedValue} = this.state;
                return(
                <Select defaultValue={selectedValue} onChange={this.handleChange}>
                {dropdownItems.map((item, index) => <Select.Option value={item.value} key={index}>{item.label}</Select.Option>)}
                </Select>
                );
                }
                }





                share|improve this answer












                you should store dropdown values in component's state..



                import { Select } from 'antd';
                class MyComponent extends Component {
                constructor(props){
                super(props);
                this.state = {
                dropdownItems: ,
                selectedValue: null
                }
                }

                componentDidMount(){
                fetch(api)
                .then(resp => resp.json())
                .then(dropdownData => {
                this.setState({
                dropdownItems: dropdownData.map(item => ({ value: item, label: item })) })
                })
                }

                handleChange = (value) => {
                this.setState({ selectedValue: value })
                }

                render(){
                const { dropdownItems, selectedValue} = this.state;
                return(
                <Select defaultValue={selectedValue} onChange={this.handleChange}>
                {dropdownItems.map((item, index) => <Select.Option value={item.value} key={index}>{item.label}</Select.Option>)}
                </Select>
                );
                }
                }






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Dec 28 '18 at 8:06









                Noman HassanNoman Hassan

                1266




                1266






























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