ngx-dynamic-form

The ngx-dynamic-form is a library that works in Angular 16 with Bootstrap 5 to generate forms in a simple and dynamic way.

Table of Contents

• Installation
• Building the Project
• Running Tests
• Running the Project
• Usage
• API

Installation

To install the library, run:

yarn add @jvlsoft/ngx-dynamic-form

Then add the following styles:

@import "~bootstrap/dist/css/bootstrap.min.css";
@import '~bootstrap-icons/font/bootstrap-icons.css';
@import "~@ng-select/ng-select/themes/default.theme.css";

Note: Make sure your project has routing, otherwise the library won't work

Building the Project

To build the project, run:

yarn run build ngx-dynamic-form

Running Tests

To execute the unit tests via Karma, run:

yarn run test ngx-dynamic-form

Running the Project

To serve the project locally, run:

yarn run start demo-app

Then navigate to http://localhost:4200/ in your browser.

Usage

Here's a basic example of how to use the library in your Angular project:

import { DynamicFormComponent, FormInputComponent } from '@jvlsoft/ngx-dynamic-form';

@NgModule({
  imports: [
    DynamicFormComponent,
    // other imports
  ],
})
export class AppModule { }

In your component:

import { Component } from '@angular/core';

@Component({
  selector: 'app-dynamic-form',
  template: `<ngx-dynamic-form [config]="formConfig" [onlyFields]="false" title="User" [hasPrefix]="false"
        [saveButton]="false" [canGoBack]="false"></ngx-dynamic-form>`,
})
export class DynamicFormComponent {
  formConfig = [
    {
      type: FormInputComponent,
      name: 'username',
      class: 'col-lg-4 col-md-6 col-sm-12',
      helperText: 'Insert your username',
      label: 'Username',
      placeholder: 'John',
      validation: [Validators.required],
    },
    {
      type: FormInputComponent,
      name: 'email',
      class: 'col-lg-4 col-md-6 col-sm-12',
      helperText: 'Insert your company email',
      label: 'Email',
      placeholder: 'email@dominium',
      validation: [Validators.required],
    },
    // Other fields...
  ];
}

For:

API

IFieldConfig

Attribute	Type	Description
type	Type<IField>	Type of HTML field.
name	string	Field name, this name will be the FormControlName. Example: 'name', 'email', etc.
class	string	Class to apply to the field. Example: col-lg-4.
label	string	Component label.
helperText	string	Text to display below the field.
fieldType	string	HTML type attribute of the field. Example: 'text', 'password', 'email', 'submit', etc.
placeholder	string	Field placeholder.
style	object	Style to apply to the field. Example: { "background-color": "#fff" }.
order	number	Fields order. Field with order 1 goes first that with order 2.
disabled	boolean	If the field will be disabled.
readonly	boolean	If the field is readonly.
value	any	Default value.
options	IFieldOptions	Object with other options, this gives the possibility to add other functionalities.
component	ComponentRef<any>	Represents a component created by a ComponentFactory. Provides access to the component instance and related objects, and provides the means of destroying the instance.
validation	ValidatorFn[]	Array of ValidatorFn.
asyncValidators	AsyncValidatorFn | AsyncValidatorFn[]	It accepts an AsyncValidatorFn or AsyncValidatorFn[] for async validator in reactive forms.
updateOn	'change' | 'blur' | 'submit'	The event name for control to update upon.

IInputConfig

Attribute	Type	Description
staticText	string	A text to display above the field.
min	number	min attribute of html input tag.
step	number	step attribute of html input tag.
validStyle	boolean	If is true show the valid style.

ICheckboxConfig

Attribute	Type	Description
firstLabel	string	Checkbox first label.
lastLabel	string	Checkbox last label.
hasLabelMargin	boolean	Is true if the label has a left margin.

IRadioConfig

Attribute	Type	Description
class	string	Class to apply to options.
options	any[]	Radio options.
checked	any	The checked element.

ISelectConfig

Attribute	Type	Description
itemService	IFieldService	Service to get the items from the database.
dynamic	boolean	Used for scrolling, searching on the server, and handling complex functions. If the data is simple, set dynamic to false.
loading	boolean	Indicates if the component is in a loading state.
autoLoadItems	boolean	If true, items will be automatically loaded.
multiple	boolean	If true, multiple items can be selected.
clearable	boolean	If true, the selected item can be cleared.
searchable	boolean	If true, the select component will be searchable.
filter	{ [key: string]: string | string[] | number | number[] | boolean }	Filter to use on the service search query.
items	[...[], ...any]	Items to be displayed in the select component.
bindLabel	string	The property to bind as the label for each item.
bindValue	string	The property to bind as the value for each item.
groupBy	string	The property to group items by.
limit	number	The maximum number of items per query.
maxSelectedItems	number	The maximum number of items that can be selected.
method	(query: any, skip: number, limit: number) => Observable<IRows>	The method to fetch rows, returning an observable.
onChange	EventEmitter<any>	Event emitter for change events.
transformData	(data: any) => any[]	Function to transform the data before displaying it.

ITextAreaConfig

Attribute	Type	Description
rows	number	Textarea rows number.