📅  最后修改于: 2023-12-03 15:27:55.475000             🧑  作者: Mango
Angular Material 提供了一个日期时间选择器组件,它是一个 Angular 组件,需要在 Angular 应用中引入 MatDatetimepickerModule
模块。日期时间选择器可以以三种方式使用:单独的日期、时间或日期和时间选择器。
首先,将 Angular Material 添加到应用中。可以在 app.module.ts
文件中进行安装:
import { MatDatetimepickerModule } from "@mat-datetimepicker/core";
import { MatMomentDatetimeModule } from "@mat-datetimepicker/moment";
@NgModule({
declarations: [AppComponent],
imports: [
BrowserModule,
BrowserAnimationsModule,
ReactiveFormsModule,
MatDatetimepickerModule,
MatMomentDatetimeModule,
],
providers: [],
bootstrap: [AppComponent],
})
export class AppModule {}
导入后就可以在 HTML 模板中使用选择器了。
使用日期选择器需要在模板中添加日期输入框:
<mat-form-field>
<input matInput [matDatetimepicker]="picker" placeholder="Choose a date" />
<mat-datetimepicker-toggle matSuffix [for]="picker"></mat-datetimepicker-toggle>
<mat-datetimepicker #picker></mat-datetimepicker>
</mat-form-field>
可以很方便地将日期时间选择器与 Angular FormBuilder 一起使用,以便将日期数据与表单数据绑定起来:
import { Component } from "@angular/core";
import { FormBuilder } from "@angular/forms";
@Component({
selector: "app-root",
template: `
<form [formGroup]="myForm">
<mat-form-field>
<input matInput formControlName="date" [matDatetimepicker]="picker" placeholder="Choose a date" />
<mat-datetimepicker-toggle matSuffix [for]="picker"></mat-datetimepicker-toggle>
<mat-datetimepicker #picker></mat-datetimepicker>
</mat-form-field>
</form>
`,
})
export class AppComponent {
myForm = this.fb.group({
date: [null],
});
constructor(private fb: FormBuilder) {}
}
使用单独的时间选择器需要在模板中添加时间输入框:
<mat-form-field>
<input matInput [matDatetimepicker]="picker" placeholder="Choose a time" />
<mat-datetimepicker-toggle matSuffix [for]="picker"></mat-datetimepicker-toggle>
<mat-datetimepicker #picker></mat-datetimepicker>
</mat-form-field>
可以将时间选择器与时间格式器一起使用,以便将时间转换为所需的格式:
import { Component } from "@angular/core";
import { Time } from "@angular/common";
import { FormControl } from "@angular/forms";
import { Moment } from "moment";
@Component({
selector: "app-root",
template: `
<mat-form-field>
<input matInput [matDatetimepicker]="picker" placeholder="Choose a time" [formControl]="myTime" />
<mat-datetimepicker-toggle matSuffix [for]="picker"></mat-datetimepicker-toggle>
<mat-datetimepicker [format]="timeFormat" #picker></mat-datetimepicker>
</mat-form-field>
`,
})
export class AppComponent {
myTime = new FormControl();
timeFormat = "HH:mm";
constructor() {}
}
日期和时间选择器需要在模板中添加日期和时间输入框:
<mat-form-field>
<input matInput [matDatetimepicker]="picker" placeholder="Choose a date and time" />
<mat-datetimepicker-toggle matSuffix [for]="picker"></mat-datetimepicker-toggle>
<mat-datetimepicker #picker></mat-datetimepicker>
</mat-form-field>
可以将日期时间选择器与日期和时间格式器一起使用,以便将日期和时间转换为所需的格式:
import { Component } from "@angular/core";
import { FormBuilder } from "@angular/forms";
import { Moment } from "moment";
@Component({
selector: "app-root",
template: `
<form [formGroup]="myForm">
<mat-form-field>
<input matInput formControlName="datetime" [matDatetimepicker]="picker" placeholder="Choose a date and time" />
<mat-datetimepicker-toggle matSuffix [for]="picker"></mat-datetimepicker-toggle>
<mat-datetimepicker [dateAdapter]="adapter" [format]="dateTimeFormat" #picker></mat-datetimepicker>
</mat-form-field>
</form>
`,
})
export class AppComponent {
myForm = this.fb.group({
datetime: [null],
});
dateTimeFormat = "YYYY-MM-DD HH:mm";
constructor(private fb: FormBuilder) {}
adapter = {
parse: (value: any, format: string): Moment => {
return moment(value, format);
},
format: (value: Moment | any, format: string): string => {
if (!value) {
return "";
}
return value.format(format);
},
createDate: (year: number, month: number, date: number): Moment => {
return moment({ year, month, date });
},
today: () => {
return moment();
},
clone: (date: Moment): Moment => {
return moment(date);
},
};
}
日期时间选择器是 Angular Material 中一个强大的 UI 组件,能够轻松地帮助应用程序轻松地处理日期和时间。无论是单独的日期选择器、时间选择器还是日期和时间选择器,都可以使用 Angular FormBuilder 轻松绑定到表单上。