Angular 7反应式表单生成器,自定义交叉验证程序不工作
这是我的HTML:Angular 7反应式表单生成器,自定义交叉验证程序不工作,angular,angular-material,angular-reactive-forms,cross-validation,customvalidator,Angular,Angular Material,Angular Reactive Forms,Cross Validation,Customvalidator,这是我的HTML: 值必须为0-100 此值必须小于允许的出席人数 必须提供有效日期 此日期必须大于上述日期 以下是getter表单控件: get ldo\u form\u fill\u up(){ 返回此.form.get('ldo_form_fill_up'); } 获取ldo_付款(){ 返回此.form.get('ldo_payment'); } 被允许{ 返回此.form.get('allowed_Attention'); } 被罚款{ 返回此.form.get('fined_At
值必须为0-100
此值必须小于允许的出席人数
必须提供有效日期
此日期必须大于上述日期
以下是getter表单控件:
get ldo\u form\u fill\u up(){
返回此.form.get('ldo_form_fill_up');
}
获取ldo_付款(){
返回此.form.get('ldo_payment');
}
被允许{
返回此.form.get('allowed_Attention');
}
被罚款{
返回此.form.get('fined_Attention');
}
以下是表单生成器:
this.form=fb.group({
允许出席人数:fb.control(70、[Validators.required、Validators.min(0)、Validators.max(100)]),
出席人数:fb.control(60,[Validators.required,Validators.min(0),Validators.max(100)]),
ldo表格填写:fb.控制('',需要验证器),
ldo_付款:fb.控制('',需要验证器),
}, {
验证器:customRangeValidator
});
以下是自定义验证程序:
导出函数customRangeValidator(组:FormGroup){
const date1=group.controls.ldo_form_fill_up;
const date2=group.controls.ldo_付款;
const attd1=group.controls.allowed_考勤;
const attd2=组.controls.U出勤率;
如果(date1.value>=date2.value){
date2.setErrors({
customRangeValidator:true
});
}
如果(attd2.value>=attd1.value){
attd2.setErrors({
customRangeValidator:true
});
}
返回null;
}
我需要的:罚款考勤
和ldo\u payment>ldo\u表单填写
发生了什么:
允许的考勤中输入70
考勤中输入60
允许的考勤
更改为50
考勤显示错误(也可以)
allowed_考勤
更改为70
60
中的fined\u Attention
,错误消失了李>
因此,我面临着
步骤7所示的问题。我做错了什么?我认为您只关心设置错误,而不关心清除错误
在else条件下,还应清除它们。以下是方法:
import { Component } from '@angular/core';
import { FormBuilder, Validators, FormGroup } from '@angular/forms';
/** @title Simple form field */
@Component({
selector: 'form-field-overview-example',
templateUrl: 'form-field-overview-example.html',
styleUrls: ['form-field-overview-example.css'],
})
export class FormFieldOverviewExample {
form: FormGroup;
constructor(private fb: FormBuilder) { }
ngOnInit() {
this.form = this.fb.group({
allowed_attendance: this.fb.control(70, [Validators.required, Validators.min(0), Validators.max(100)]),
fined_attendance: this.fb.control(60, [Validators.required, Validators.min(0), Validators.max(100)]),
ldo_form_fill_up: this.fb.control('', Validators.required),
ldo_payment: this.fb.control('', Validators.required),
}, { validators: customRangeValidator });
}
submit() {
console.log(this.form.value);
}
get ldo_form_fill_up() {
return this.form.get('ldo_form_fill_up');
}
get ldo_payment() {
return this.form.get('ldo_payment');
}
get allowed() {
return this.form.get('allowed_attendance');
}
get fined() {
return this.form.get('fined_attendance');
}
}
export function customRangeValidator(group: FormGroup) {
console.log('Called');
const { ldo_form_fill_up, ldo_payment, allowed_attendance, fined_attendance } = group.controls;
if (fined_attendance.value >= allowed_attendance.value) {
fined_attendance.setErrors({ customRangeValidator: true });
} else {
fined_attendance.setErrors(null);
}
if (ldo_form_fill_up.value >= ldo_payment.value) {
ldo_payment.setErrors({ customRangeValidator: true });
} else {
ldo_payment.setErrors(null);
}
return null;
}
另外,在您的模板中,不使用[formGroup]
为什么不直接使用formGroupName
。大概是这样的:
<form [formGroup]="form">
<mat-form-field>
<input matInput type="number" min="0" max="100" step="1" placeholder="Allowed Attendance (%)" required formControlName="allowed_attendance" name="allowed_attendance">
<mat-error *ngIf="allowed.invalid">Value must be 0-100</mat-error>
</mat-form-field>
<mat-form-field>
<input matInput type="number" min="0" max="100" step="1" placeholder="Fined Attendance (%)" required formControlName="fined_attendance" name="fined_attendance">
<mat-error *ngIf="fined.invalid">This value must be less than allowed attendance</mat-error>
</mat-form-field>
<mat-form-field>
<input matInput required formControlName="ldo_form_fill_up" placeholder="Applicable Until" [matDatepicker]="picker" name="ldo_form_fill_up">
<mat-datepicker-toggle #toggle matSuffix [for]="picker"></mat-datepicker-toggle>
<mat-datepicker #picker></mat-datepicker>
<mat-error *ngIf="ldo_form_fill_up.invalid">A valid date is required</mat-error>
</mat-form-field>
<mat-form-field *ngIf="ldo_form_fill_up.valid">
<input matInput required formControlName="ldo_payment" placeholder="Payable Until" [matDatepicker]="picker2" name="ldo_payment">
<mat-datepicker-toggle #toggle2 matSuffix [for]="picker2"></mat-datepicker-toggle>
<mat-datepicker #picker2></mat-datepicker>
<mat-error *ngIf="ldo_payment.invalid">This date must be greater than the above</mat-error>
</mat-form-field>
<br>
<button
[disabled]="form.invalid"
mat-raised-button
color="primary"
(click)="submit()">
Primary
</button>
</form>
值必须为0-100
此值必须小于允许的出席人数
必须提供有效日期
此日期必须大于上述日期
主要的,重要的
这是给你的裁判的一封信
谢谢你做这个,帮了我很多。这是一个伟大的小于大于验证在打字脚本,感谢它