No provider for MatDialogRef

kashif roshen picture kashif roshen · Oct 11, 2017 · Viewed 52k times · Source

I am using material 2 version 2.0.0-beta.12. I need to adjust the position of the material Modal. I followed this answer to do that. https://stackoverflow.com/a/44238699/8253445 Since MdDialog is not available now I used {MatDialog, MatDialogRef, MAT_DIALOG_DATA}.

constructor(public dialog: MatDialog,public dialModRef:MatDialogRef<any>) {}

When I add MatDialogRef to my constructor it gives me " No provider for MatDialogRef" error. Please can you help me to figure this out?

dialog-overview-example.ts

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

@Component({
   selector: 'dialog-overview-example',
   templateUrl: 'dialog-overview-example.html'
})
export class DialogOverviewExample {

   animal: string;
   name: string;

   constructor(public dialog: MatDialog,public 
   dialModRef:MatDialogRef<any>) {}

   openDialog(): void {
       let dialogRef = this.dialog.open(DialogOverviewExampleDialog, {
        width: '500px',
        data: { name: this.name, animal: this.animal }
   });

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

@Component({
   selector: 'dialog-overview-example-dialog',
   templateUrl: 'dialog-overview-example-dialog.html',
})
export class DialogOverviewExampleDialog {

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

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

}

app.module.ts

entryComponents: [DialogOverviewExample,DialogOverviewExampleDialog]

dialog-overview-example-dialog.html

<h1 md-dialog-title>Hi {{data.name}}</h1>
<div md-dialog-content>
  <p>What's your favorite animal?</p>
  <md-form-field>
    <input mdInput tabindex="1" [(ngModel)]="data.animal">
  </md-form-field>
</div>
<div md-dialog-actions>
  <button md-button tabindex="2">Ok</button>
  <button md-button (click)="onNoClick()" tabindex="-1">No Thanks</button>
</div>

Answer

Javier Aviles picture Javier Aviles · Dec 13, 2017

You will get that exact

No provider for MatDialogRef

error in case you include your dialog's component html selector in dialog-overview-example.html like <dialog-overview-example-dialog></dialog-overview-example-dialog>

There is no need for that, do not include the html selector of the dialog component anywhere.