add-role-dialog.component.ts

import { Component, Inject, OnInit } from '@angular/core';
import { MatDialogRef, MAT_DIALOG_DATA } from '@angular/material';
import { FormGroup, FormBuilder, Validators, FormControl } from '@angular/forms';

@Component({
  selector: 'app-add-role-dialog',
  templateUrl: './add-role-dialog.component.html',
  styleUrls: ['./add-role-dialog.component.scss']
})
export class AddRoleDialogComponent implements OnInit {
  public form: FormGroup;
  public actionsAlignment: string;

  constructor(public dialogRef: MatDialogRef<AddRoleDialogComponent>,
    @Inject(MAT_DIALOG_DATA) public data: any, private fb: FormBuilder) { }

  ngOnInit() {
    this.form = this.fb.group({
      role: [null, Validators.compose([Validators.required])],
    });
  }
}