'How to use scrollStrategy in MatDialog?

I tried to make a scroll for a dialog in reposition strategy, but it doesn't work for me.

const scrollStrategy = this.overlay.scrollStrategies.reposition();
const dialogRef = this.dialog.open( DialogOverviewExampleDialog, { scrollStrategy } );

The full example

I expect that during scrolling the whole dialog(element .cdk-overlay-pane) will move

Almost right behavior

Solution 1:^[1]

If you want to scroll the content of the dialog then you have to use the <mat-dialog-content> tag, or use the directive mat-dialog-content in your div element. In your example try the following instead:

<h1 mat-dialog-title>Hi {{data.name}}</h1>
<mat-dialog-content> <!-- instead of your <div>  or use <div mat-dialog-content> -->
  <p>What's your favorite animal!!!!!!!</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal?</p>
  <p>What's your favorite animal!!!!!!</p>
  <mat-form-field>
    <input matInput [(ngModel)]="data.animal">
  </mat-form-field>
</mat-dialog-content> <!-- instead of your </div> -->
<div mat-dialog-actions>
  <button mat-button (click)="onNoClick()">No Thanks</button>
  <button mat-button [mat-dialog-close]="data.animal" cdkFocusInitial>Ok</button>
</div>

And now your dialog content should have a scroll on the side. Read more about the Scrollable content container of a dialog on:

https://material.angular.io/components/dialog/api#MatDialogContent

Solution 2:^[2]

I tried this way,

const dialogRef = this.dialog.open(LoginModalComponent, {
      autoFocus: false,
      maxHeight: '90vh' //you can adjust the value as per your view
});

Solution 3:^[3]

Hi try to put this on your style.css or style.scss

.cdk-global-overlay-wrapper {
  display: flex;
  position: absolute;
  z-index: 1000;
  overflow: auto;
  pointer-events: auto;  
}

Solution 4:^[4]

Since https://github.com/angular/material2/pull/11235, .mat-dialog-container got max-height: inherit which should solve your problem.

Setting maxHeight: window.innerHeight + 'px' on the dialog configuration prevents the dialog from growing bigger than the screen.

Solution 5:^[5]

I was looking for a similar solution as OP. The trick in the provided example is to set overflow:auto on the .cdk-global-overlay-wrapper.

Add this css to your styles (not inside the dialog's css):

Altough there's a slight issue, without auto pointer-events scrolling does not work on current chrome version and with auto pointer-events, closing via backdrop click does not work. (will update if i find a solution)

.cdk-global-overlay-wrapper {
  overflow: auto;
  pointer-events: auto;  // needed for chrome but prevents backdrop click close
}

If you want to prevent scrolling on the back scenery i.e. parent component you ~~could set overflow: hidden on the parent as long as the dialog is open.~~

.. just remove the scroll strategy from the example.

Solution 6:^[6]

compare all the files difference. there is extra css in style.css

.cdk-global-overlay-wrapper {
  pointer-events: auto;
  display: block;
  position: relative;
  overflow: auto;
  text-align: center;
}

.cdk-global-overlay-wrapper::before {
  content: '';
  display: inline-block;
  height: 100%;
  white-space: nowrap;
}

.cdk-overlay-pane {
  display: inline-block;
  position: relative;
  text-align: left;
  white-space: normal;
}

Solution 7:^[7]

Its enough to add the two attributes below.

.cdk-global-overlay-wrapper {
  overflow: auto;
  pointer-events: auto;  
}

Solution 8:^[8]

Had a similar issue, this works with Angular 12

import { ScrollStrategy, ScrollStrategyOptions } from '@angular/cdk/overlay';

scrollStrategy: ScrollStrategy;

constructor(private readonly sso: ScrollStrategyOptions) {
   this.scrollStrategy = this.sso.noop(); // or close()/block()/reposition()
}

See docks ScrollStrategyOptions and pass it in to MatDialogConfig object as:

  const dialogRef = this.dialog.open(
    DialogOverviewExampleDialog, {scrollStrategy: this.scrollStrategy }
  );

This stackblitz helped me to understand my problem - ScrollStrategyOptions

Solution 9:^[9]

let dialogRef = this.matDialog.open(MyComponent, {
   height: '100%',
   autoFocus: false,
});

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1
Solution 2	AbdulRehman
Solution 3	Jet Buque Matias
Solution 4	Papa Mufflon
Solution 5
Solution 6	mewosic
Solution 7	Ilker Cat
Solution 8
Solution 9

'How to use scrollStrategy in MatDialog?

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