如何从material-ui TextField,DropDownMenu组件获取数据?

JavaScript React.js

小小

2020-04-03

我创建表单,我有几个TextField,DropDownMenu材质UI组件,问题是如何从一个obj中的所有TextField,DropDownMenus收集所有数据并将其发送到服务器。对于TextField,它具有TextField.getValue()返回输入的值。但是我不知道如何使用它。

var React = require('react'),
    mui = require('material-ui'),
    Paper = mui.Paper,
    Toolbar = mui.Toolbar,
    ToolbarGroup = mui.ToolbarGroup,
    DropDownMenu = mui.DropDownMenu,
    TextField = mui.TextField,
    FlatButton = mui.FlatButton,
    Snackbar = mui.Snackbar;

var menuItemsIwant = [
  { payload: '1', text: '[Select a finacial purpose]' },
  { payload: '2', text: 'Every Night' },
  { payload: '3', text: 'Weeknights' },
  { payload: '4', text: 'Weekends' },
  { payload: '5', text: 'Weekly' }
];
var menuItemsIcan = [
  { payload: '1', text: '[Select an objective]' },
  { payload: '2', text: 'Every Night' },
  { payload: '3', text: 'Weeknights' },
  { payload: '4', text: 'Weekends' },
  { payload: '5', text: 'Weekly' }
];
var menuItemsHousing = [
  { payload: '1', text: '[Select housing]' },
  { payload: '2', text: 'Every Night' },
  { payload: '3', text: 'Weeknights' },
  { payload: '4', text: 'Weekends' },
  { payload: '5', text: 'Weekly' }
];
var menuItemsIlive = [
  { payload: '1', text: '[Select family mambers]' },
  { payload: '2', text: 'Every Night' },
  { payload: '3', text: 'Weeknights' },
  { payload: '4', text: 'Weekends' },
  { payload: '5', text: 'Weekly' }
];
var menuItemsLifestyle = [
  { payload: '1', text: '[Select lifestyle]' },
  { payload: '2', text: 'Every Night' },
  { payload: '3', text: 'Weeknights' },
  { payload: '4', text: 'Weekends' },
  { payload: '5', text: 'Weekly' }
];
var menuItemsLifestyle2 = [
  { payload: '1', text: '[Select savings]' },
  { payload: '2', text: 'Every Night' },
  { payload: '3', text: 'Weeknights' },
  { payload: '4', text: 'Weekends' },
  { payload: '5', text: 'Weekly' }
];
var menuItemsIncome = [
  { payload: '1', text: '[Select your yearly income]' },
  { payload: '2', text: 'Every Night' },
  { payload: '3', text: 'Weeknights' },
  { payload: '4', text: 'Weekends' },
  { payload: '5', text: 'Weekly' }
];
var Content = React.createClass({

  getInitialState: function() {
    return {
      //formData: {
      //  name: '',
      //  age: '',
      //  city: '',
      //  state: ''
      //},
      errorTextName: '',
      errorTextAge: '',
      errorTextCity: '',
      errorTextState: ''
    };
  },

  render: function() {

    return (
      <div className="container-fluid">
        <div className="row color-bg"></div>
        <div className="row main-bg">
          <div className="container">
            <div className="mui-app-content-canvas page-with-nav">
              <div className="page-with-nav-content">

                <Paper zDepth={1}>

                  <h2 className="title-h2">Now, what would you like to do?</h2>

                  <Toolbar>
                    <ToolbarGroup key={1} float="right">
                      <span>I want to</span>
                      <DropDownMenu
                        className="dropdown-long"
                        menuItems={menuItemsIwant}
                        //autoWidth={false}
                      />
                    </ToolbarGroup>
                  </Toolbar>

                  <div className="clearfix"></div>

                  <Toolbar>
                    <ToolbarGroup key={2} float="right">
                      <span>So I can</span>
                      <DropDownMenu
                        className="dropdown-long"
                        menuItems={menuItemsIcan}
                        //autoWidth={false}
                      />
                    </ToolbarGroup>
                  </Toolbar>

                  <h2 className="title-h2">Please, share a little about you.</h2>

                  <div className="clearfix"></div>

                  <Toolbar>
                    <ToolbarGroup key={3} float="right">
                      <span>I am</span>
                      <TextField
                        id="name"
                        className="text-field-long"
                        ref="textfield"
                        hintText="Full name"
                        errorText={this.state.errorTextName}
                        onChange={this._handleErrorInputChange}
                      />
                      <span>and I am</span>
                      <TextField
                        id="age"
                        className="text-field-short"
                        ref="textfield"
                        hintText="00"
                        errorText={this.state.errorTextAge}
                        onChange={this._handleErrorInputChange}
                      />
                      <span className="span-right-measure">years of age.</span>
                    </ToolbarGroup>
                  </Toolbar>

                  <div className="clearfix"></div>

                  <Toolbar>
                    <ToolbarGroup key={4} float="right">
                      <span>I</span>
                      <DropDownMenu
                        hintText="I"
                        menuItems={menuItemsHousing}
                        //autoWidth={false}
                      />
                      <span>in</span>
                      <TextField
                        id="city"
                        ref="textfield"
                        className="text-field-long"
                        hintText="City"
                        errorText={this.state.errorTextCity}
                        onChange={this._handleErrorInputChange}
                      />
                      <span>,</span>
                      <TextField
                        id="state"
                        ref="textfield"
                        className="text-field-short text-field-right-measure"
                        hintText="ST"
                        errorText={this.state.errorTextState}
                        onChange={this._handleErrorInputChange}
                      />
                    </ToolbarGroup>
                  </Toolbar>

                  <div className="clearfix"></div>

                  <Toolbar>
                    <ToolbarGroup key={5} float="right">
                      <span>Where I live</span>
                      <DropDownMenu
                        className="dropdown-long"
                        menuItems={menuItemsIlive}
                        //autoWidth={false}
                      />
                    </ToolbarGroup>
                  </Toolbar>

                  <div className="clearfix"></div>

                  <Toolbar>
                    <ToolbarGroup key={6} float="right">
                      <span>My lifestyle is</span>
                      <DropDownMenu
                        className="dropdown-short"
                        menuItems={menuItemsLifestyle}
                        //autoWidth={false}
                      />
                      <span>and I've saved</span>
                      <DropDownMenu
                        className="dropdown-short"
                        menuItems={menuItemsLifestyle2}
                        //autoWidth={false}
                      />
                    </ToolbarGroup>
                  </Toolbar>

                  <div className="clearfix"></div>

                  <Toolbar>
                    <ToolbarGroup key={7} float="right">
                      <span>My yearly household is about</span>
                      <DropDownMenu
                        className="dropdown-mobile"
                        menuItems={menuItemsIncome}
                        //autoWidth={false}
                      />
                    </ToolbarGroup>
                  </Toolbar>

                  <div className="clearfix"></div>

                  <div className="button-place">
                    <FlatButton
                      onTouchTap={this._handleClick}
                      label="I'm done lets go!"
                    />

                    <Snackbar
                      ref="snackbar"
                      message="Invalid input, please check and try again"
                    />
                  </div>

                </Paper>

              </div>
            </div>
          </div>
        </div>
      </div>
    );
  },

  _handleErrorInputChange: function(e) {
    if (e.target.id === 'name') {
      var name = e.target.value;
      this.setState({
        //name: name,
        errorTextName: e.target.value ? '' : 'Please, type your Name'
      });
    } else if (e.target.id === 'age') {
      var age = e.target.value;
      this.setState({
        //age: age,
        errorTextAge: e.target.value ? '' : 'Check Age'
      });
    } else if (e.target.id === 'city') {
      var city = e.target.value;
      this.setState({
        //city: city,
        errorTextCity: e.target.value ? '' : 'Type City'
      });
    } else if (e.target.id === 'state') {
      var state = e.target.value;
      this.setState({
        //state: state,
        errorTextState: e.target.value ? '' : 'Type State'
      });
    }
  },

  _handleClick: function(e) {
    this.refs.snackbar.show();
    //TODO: find a way to change errorText for all empty TextField
    if (this.refs.textfield && this.refs.textfield.getValue().length === 0) {
      this.setState({
        errorTextState: 'Type State',
        errorTextCity: 'Type City',
        errorTextAge: 'Check Age',
        errorTextName: 'Please, type your Name'
      });
    }
  }

});

module.exports = Content;

我想通过_handleClick方法将其发送到服务器上。

第3978篇《如何从material-ui TextField,DropDownMenu组件获取数据?》来自Winter(https://github.com/aiyld/aiyld.github.io)的站点

2个回答
A达蒙 2020.04.03

使用接受的答案/这是另一个(已删除)问题的答案

@karopastal

ref向您的<TextField />组件添加一个属性,并在其上调用getValue(),如下所示:

零件:

<TextField ref="myField" />

使用getValue:

this.refs.myField.getValue()
2020.04.03

这是我想到的最简单的解决方案,我们获得了material-ui textField创建的输入的值:

      create(e) {
        e.preventDefault();
        let name = this.refs.name.input.value;
        alert(name);
      }

      constructor(){
        super();
        this.create = this.create.bind(this);
      }

      render() {
        return (
              <form>
                <TextField ref="name" hintText="" floatingLabelText="Your name" /><br/>
                <RaisedButton label="Create" onClick={this.create} primary={true} />
              </form>
        )}

希望这可以帮助。

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