Angular Material 对话框组件隐藏了我所有的网站组件

问题描述

我正在使用 angular 5 和 angular material(最新版​​本)，我正在尝试从页面打开一个对话框.当我点击触发打开的按钮时，整个网站都被置于空白背景中，就像对话框重叠其内容并将其全部隐藏一样.

I'm using angular 5 and angular material (latest version) and I'm trying to open a dialog from a page. When I click the button that triggers the opening, the entire website is put in blank background like if the dialog were overlaping it contents and hiding it all.

import { Component, OnInit, Inject } from '@angular/core';
import { MatDialogRef, MAT_DIALOG_DATA } from '@angular/material';

@Component({
    moduleId: module.id,
    selector: 'app-dialog',
    templateUrl: 'dialog.component.html',
    styleUrls: ['dialog.component.scss']
})
export class DialogComponent implements OnInit {

    constructor(public dialogRef: MatDialogRef<DialogComponent>,
        @Inject(MAT_DIALOG_DATA) public data: any) { }

    onNoClick(): void {
        this.dialogRef.close();
    }

    ngOnInit() {
    }

}

这是打开对话框的方法.

And this is the method that opens the Dialog.

onSubmit() {

        const dialogRef = this.dialog.open(DialogComponent, {
            width: '250px',
            data: { name: 'Juan Manuel', animal: 'Perro' }
        });

        dialogRef.afterClosed().subscribe(result => {
            console.log('The dialog was closed');
            console.log(result);
        });
    }

更新:我已经看到在呈现对话框后，一个类被添加到我的 html 标签中..cdk-global-scrollblock 我不知道为什么要将该类添加到我的 html 标记中.

UPDATE:I've seen that after the dialog is rendered a class is added to my html tag. .cdk-global-scrollblock I don't know why is that class added to my html tag.

.cdk-global-scrollblock {
    position: fixed;
    width: 100%;
    overflow-y: scroll;
}

那是什么导致了我的错误.有人知道为什么我的 html 标签上有那个类吗?

That what's causing my error. Does someone knows why is that class on my html tag?

推荐答案

最简单的解决方法是将对话框滚动策略设置为新的 NoopScrollStrategy 对象:

Easiest fix would be setting the dialog scroll strategy to new NoopScrollStrategy object:

const dialogRef = this.dialog.open(DialogComponent, {
        width: '250px',
        data: { name: 'Juan Manuel', animal: 'Perro' },
        scrollStrategy: new NoopScrollStrategy()
    });

这只需要额外的导入:

import { NoopScrollStrategy } from '@angular/cdk/overlay';

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