semantic-ui-react-form-validator

A semantic-ui implementation of react-form-validator-core

Install

npm install --save semantic-ui-react-form-validator

Index

• Input
• Dropdown
• TextArea
• Validation Rules
• Add Custom Validation

Input

First Lets look at the simple input field validation. Note: You can use the inline props to get the inline label.

Usage

import React, { Component } from 'react'
import 'semantic-ui-css/semantic.css'; //Import the css only once in your project
import {Form,Input} from 'semantic-ui-react-form-validator'
import {Button} from 'semantic-ui-react';
class App extends Component {
  render () {
    return (
      <Form 
      ref="form"
      onSubmit={this.onSubmit} 
      >
        <Input 
          type="text"
          label="Test Input"
          onChange={(e)=>{this.setState({value:e.target.value})}} 
          value={this.state.value} 
          validators={['required']} 
          errorMessages={['this field is required']} 
          width={6} 
          />
          
        <Button color="teal">Submit<Button>
      </From>
    )
  }
}

Result

Here is a list of all props you can use in the Input Component.

Props	Required	Type	Default value	Description
type	true	string	text	Basic html input type
placeholder	false	string		Basic html placeholder
label	false	string		label
inline	false	bool		Set it true to get inline labels
validators	false	array		Array of validators. See list of default validators above.Leave empty for no validations
errorMessages	false	array		Array of error messages. Order of messages should be the same as validators prop.
onChange	true	func		onChange function is required to set the value of the input filed
value	true	string	empty String	You need to set the value of the input field in onChange function and pass the value as a prop to the Input Component.The validator looks for this value.
width	false	int	12	width of the input field. 12 means it will match the parent width
## Dropdown
Dropdown Component is pretty similar to the Input Component.
### Usage
```jsx
import React, { Component } from 'react'
import 'semantic-ui-css/semantic.css'; //Import the css only once in your project
import {Form,Dropdown} from 'semantic-ui-react-form-validator'
import {Button} from 'semantic-ui-react';
class App extends Component {
render () {
const options=[
{
key: 'Jenny Hess',
text: 'Jenny Hess',
value: 'Jenny Hess',
image: { avatar: true, src: '/images/avatar/small/jenny.jpg' },
},
{
key: 'Elliot Fu',
text: 'Elliot Fu',
value: 'Elliot Fu',
image: { avatar: true, src: '/images/avatar/small/elliot.jpg' },
},
{
key: 'Stevie Feliciano',
text: 'Stevie Feliciano',
value: 'Stevie Feliciano',
image: { avatar: true, src: '/images/avatar/small/stevie.jpg' },
},
{
key: 'Christian',
text: 'Christian',
value: 'Christian',
image: { avatar: true, src: '/images/avatar/small/christian.jpg' },
},
{
key: 'Matt',
text: 'Matt',
value: 'Matt',
image: { avatar: true, src: '/images/avatar/small/matt.jpg' },
},
{
key: 'Justen Kitsune',
text: 'Justen Kitsune',
value: 'Justen Kitsune',
image: { avatar: true, src: '/images/avatar/small/justen.jpg' },
},
];
return (
<Form
ref="form"
onSubmit={this.onSubmit}
>
<Dropdown
label="Test Dropdown"
onChange={(e,{value})=>{this.setState({dropdown:value})}}
value={this.state.dropdown}
validators={['required']}
errorMessages={['this field is required']}
validators={['required']}
errorMessages={['You must select one option']}
options={options}
/>

    <Button color="teal">Submit<Button>
  </From>
)

} }

## Result 
![](dropdown-val.gif)

##### Here is a list of all props you can use in the *Dropdown* Component.

| Props | Required | Type | Default value | Description |
| ---- | -------- | ---- | ------------- | ----------- |
| placeholder | false | ```string``` | | Basic html placeholder |
| label | false | ```string``` | | label |
| inline | false | ```bool``` | | Set it true to get inline labels |
| validators | false | ```array``` | | Array of validators. See list of default validators above.Leave empty for no validations |
| errorMessages | false | ```array``` | | Array of error messages. Order of messages should be the same as validators prop. |
| onChange | true | ```func``` | | *onChange* function is required to set the value of the input filed ``` onChange=(e,{value})=>{ //handle value} ``` |
| value | true | ```string``` | | You need to set the value of the input field in *onChange* function and pass the value as a prop to the *Input* Component.The validator looks for this value. |
| options | true | ```array``` | | A list of options as an array. eg:- ``` [{key:1,text:"foo",value:1},{key:2,text:"bar",value:2}] ```
| multiple | false | ```bool``` | | Set it ```true``` to select more than one options |
| selection | false |``` bool``` | | Set it ```true``` to make the dropdown look like select field |
| search | false |``` bool``` | | You'll be able to search from dropdown options when set to ```true```|
| width | false | ```int``` | 12 | width of the input field. 12 means it will match the parent width |

## TextArea 
### Usage
```jsx
import React, { Component } from 'react'
import 'semantic-ui-css/semantic.css'; //Import the css only once in your project
import {Form,TextArea} from 'semantic-ui-react-form-validator'
import {Button} from 'semantic-ui-react';
class App extends Component {
  render () {
    return (
      <Form 
      ref="form"
      onSubmit={this.onSubmit} 
      >
        <TextArea
          label="TEXTAREA LABEL"
          validators={['required']}
          errorMessages={['CAnnot Be empty']}
          value={this.state.txtValue}
          onChange={e=>{this.setState({txtValue:e.target.value})}}
          />
          
        <Button color="teal">Submit<Button>
      </From>
    )
  }
}

Here is a list of all props you can use in the Dropdown Component.

Props	Required	Type	Default value	Description
placeholder	false	string		Basic html placeholder
label	false	string		label
validators	false	array		Array of validators. See list of default validators above.Leave empty for no validations
errorMessages	false	array		Array of error messages. Order of messages should be the same as validators prop.
onChange	true	func		onChange function is required to set the value of the input filed
value	true	string	empty String	You need to set the value of the input field in onChange function and pass the value as a prop to the Input Component.The validator looks for this value.

Validation Rules

Simple form validation component for react forms inspired by formsy-react

Default validation rules:

• matchRegexp
• isEmail
• isEmpty
• required
• trim
• isNumber
• isFloat
• isPositive
• minNumber
• maxNumber
• minFloat
• maxFloat
• minStringLength
• maxStringLength
• isString
• maxFileSize
• allowedExtensions

Some rules can accept extra parameter, example:

<Input
   {...someProps}
   validators={['minNumber:0', 'maxNumber:255', 'matchRegexp:^[0-9]

]}
/>

Add Custom Validation

You can add your own rules

componentDidMount(){
    Form.addValidationRule('isFoo',value=>{
      var foo=/foo/;
      return foo.test(value)
    })
  }

check out app.js in example folder for more examples

Form

• Props

Prop	Required	Type	Default value	Description
onSubmit	true	function		Callback for form that fires when all validations are passed
instantValidate	false	bool	true	If true, form will be validated after each field change. If false, form will be validated only after clicking submit button.
onError	false	function		Callback for form that fires when some of validations are not passed. It will return array of elements which not valid.
debounceTime	false	number	0	Debounce time for validation i.e. your validation will run after debounceTime ms when you stop changing your input

License

MIT © Aman9804