let component=this.target.createComponent(factory, 0); let ctrl=this.form.controls["age"]; component.instance.writeValue(ctrl.value); //需要手动去调用 writeValue, registerOnChange, registerOnTouched, 如果可以直接加上 formControlName 指令,就方便多了. component.instance.registerOnChange((v)=>{ ctrl...
If you are confused with FormControl, FormGroup, FormArray, and Validators class, then this article will help you to understand how they can work together to build awesome angular form. For every form control such as text, checkbox, radio button, we need to create the instance of FormContro...
If you are confused with FormControl, FormGroup, FormArray, and Validators class, then this article will help you to understand how they can work together to build awesome angular form. For every form control such as text, checkbox, radio button, we need to create the instance of FormContro...
ng-class:The ngClass directive allows you to dynamically set CSS classes on an HTML element by databinding an expression that represents all classes to be added.一般里面是一个表达式,请参考ngClass $pristine:是一个boolean值,如果为true,说明user没有和form进行交互,也就是说form没有被修改,参考:$pris...
Add Controls Dynamically You can also create controls without even initializing the group control object with the help of new react form components (FieldGroup,FieldControl,FieldArray). importReact,{Component}from'react'import{FieldGroup,FieldControl,Validators}from'react-reactive-form'exportdefaultclass...
To generate all*.js,*.js.mapand*.d.tsfiles: $ npm run tsc To lint all*.tsfiles: $ npm run lint Improvement Click title to navigate Hide/Show navigation button Disable visited steps after navigate to previous Dynamically add/remove step License MIT ©Maiyaporn Phanich...
* FormArray.insert * FormArray.removeAt * FormArray.setControl * FormArray.clear If your app has custom classes that extend `FormArray` or `FormGroup` classes and override the above-mentioned methods, you may need to update your implementation to take the new options into ...
Our Angular UI Components support NgModel and FormControlName directives. Smart UI for Angular can be quickly used with Angular Forms. TypeScript Support. Smart UI for Angular comes with full TypeScript support which makes our Angular UI Library a perfect choice for professional web projects and ...
FormArrayis used as an array that wraps around an arbitrary amount ofFormControl,FormGroup, or even otherFormArrayinstances. WithFormArrayyou can add new form fields or a set of form fields declaratively. In this article, we will go over an example application consisting of an order form fo...
Instead of using template-driven forms, use Reactive Forms to dynamically add controls. To learn more about Reactive Forms, refer to this documentation. The component containing the form is responsible for using the FormBuilder class along with the FormGroup class and the addControl() method to ...