redux-form | 易学教程

Edit Field not working & Managing form values using redux store - redux-form

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问题 I am using redux-form v6.7.0 . I referred this link and tried to load data asynchronously on button click but it is not working as expected. I used change method in componentWillReceiveProps but after using I am unable to edit that Field . I don't know using change method is the only and appropriate way of managing with redux-form . PFB the sample code snippet where I loaded personName using change method in componentWillReceiveProps and after that I am unable to edit that Field . For

React/Redux Redux-Form Pre-Populate Form For Update

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问题 I'm trying to pre-populate a form using the redux-form library. The issues I'm having now is being able to pass (perhaps) the item.id from the Items or Item component to the List when the Edit Item button is clicked. That way I could check it against my listItems array and grab it's data to populate the form. But prior to doing this, I created a function populateForm to try redux-form's dispatch/initialize function for " populating " the form. It works as expected, except that when I click

How to handleSubmit with a redux-form

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问题 Hello I'm working to use redux-form for the first time. I am able to render the form but I have not been able to handle the submit. While I eventually want to send the data to the server, at this point, I'm simply trying to console log the form field values. I'm getting the error: Error: You must either pass handleSubmit() an onSubmit function or pass onSubmit as a prop Here's my Profile.jsx file import React, {Component} from 'react'; import {connect} from 'react-redux'; import {withAuth}

How to calculate with reduxform?

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问题 I am a redux-form newbie and trying to add two values, 2 fields that look like this: <Field className="uk-input" name="amount1" component="input" type="text" placeholder="dollars" onChange={this.handleChange} /> I use a function that is called in the handleChange event: handleChange = () => { console.log("hoer"); this.props.change( "selectingFormValues", "totaal", total(this.props.amount1 + this.props.amount2) ); }; How can I calculate the total and store the total in the redux-form store?

Redux-form: Set form values from state

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问题 I have a redux-form called addContactForm . This form listens to some actions in my application through a plugin. See code below for an illustration: /reducers/index.js import { combineReducers } from 'redux'; import { reducer as reduxFormReducer } from 'redux-form' import AddContactFormPlugin from './add-contact-form-plugin'; const rootReducer = combineReducers({ form: reduxFormReducer.plugin({ addContactForm: AddContactFormPlugin }) }); export default rootReducer; /reducers/add-contact-form

How to properly set default values using redux-forms?

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问题 Using React with redux-forms, I got following component, it's a form where 3 input fields might get values if the query string include the values. I'm using initialize method for setting: initialize({ firstname: query.firstname, lastname: query.lastname, birthday: query.dob }); And that fills the fills, however I got two main issues: The submit button keeps disabled The fields are not editable. I tried to set a fix for the submit button by testing the invalid prop, but didn't work. How can I

Property 'isLoading' does not exist on type 'IntrinsicAttributes & IntrinsicClassAttributes<FormInstance<{}, Partial<ConfigProps<{}, {}>> -Redux form

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问题 I have one container component and one form component: Form component: import * as React from 'react'; import { reduxForm, Field, InjectedFormProps } from 'redux-form'; export type LoginState = { email: string; password: string; }; interface LoginProps extends InjectedFormProps { isLoading: boolean; onSubmit(userCredential: LoginState): void; } class Login extends React.Component<LoginProps, LoginState> { constructor(props: LoginProps) { super(props); this.state = { email: '', password: '',

Redux Form Fields Component and Validation

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问题 I am using the redux to hide and show components based on a value. The Redux form documentation mentions the following: Connecting to multiple fields should be used sparingly, as it will require the entire component to re-render every time any of the fields it is connected to change. This can be a performance bottleneck. Unless you absolutely need to, you should connect to your fields individually with . I am unclear if my solution to hiding and showing fields based on radio buttons is good

How do you create multiple forms on the same page with redux-forms v6?

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问题 I have a simple todo app in which my redux store contains an array of 'todos'. My 'Todo' component maps over every 'todo' in the store and renders a 'TodoForm' component that uses redux-forms v6. As it is now, every 'todo' shares the same form name/key, so every time I input something in the 'title' Field, it changes the 'title' of every todo. I found a work around by using unique Field names, but I fear it's going to over complicate things as the app grows, and would prefer to use unique

How to get formvalues in handlechange?

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In my form I have an onChange event on one of the formfields: <div> <label>Last Name</label> <div> <Field name="lastName" component="input" type="text" placeholder="Last Name" onChange={() => this.handleChange()} /> </div> </div> When handleChange gets fired I want to get the formvalues : handleChange(){ //do calculation console.log('handlechange',this.props.values) } At the moment I am getting this.props.values = undefined? How can I get the formvalues? You'll need to create a custom input . You'll need to intercept and update redux's input.onChange function. Optional -- If you want other