link-value.component.html

<span *ngIf="mode === 'read'; else showForm" class="read-mode-view">
    <span class="rm-value" (click)="refResClicked()" (mouseover)="refResHovered()">
        <a class="link">{{valueFormControl.value?.label}}</a>
    </span>
  <span class="rm-comment" *ngIf="shouldShowComment">{{commentFormControl.value}}</span>
</span>
<ng-template #showForm>
  <span [formGroup]="form">
    <mat-form-field class="child-value-component" floatLabel="never">
          <input matInput [formControlName]="'value'" class="value" type="text" placeholder="{{resourceClassLabel}}" aria-label="resource" [matAutocomplete]="auto">
          <mat-autocomplete #auto="matAutocomplete" [displayWith]="displayResource">
            <mat-option *ngFor="let rc of resourceClasses" (click)="openDialog('createLinkResource', $event, propIri, rc)">
                Create New: {{rc?.label}}
            </mat-option>
            <mat-option *ngFor="let res of resources" [value]="res">
                {{res?.label}}
            </mat-option>
          </mat-autocomplete>
        <mat-error *ngIf="valueFormControl.hasError('valueNotChanged')">
                 <span class="custom-error-message">New value must be different than the current value.</span>
            </mat-error>
        <mat-error *ngIf="valueRequiredValidator && valueFormControl.hasError('invalidType')">
                 <span class="custom-error-message">New value must be a valid resource type.</span>
        </mat-error>
        <mat-error *ngIf="valueFormControl.hasError('duplicateValue')">
            <span class="custom-error-message">This value already exists for this property. Duplicate values are not allowed.</span>
        </mat-error>
      </mat-form-field>
      <mat-form-field class="large-field value-component-comment">
        <textarea matInput
                  cdkTextareaAutosize
                  cdkAutosizeMinRows="1"
                  cdkAutosizeMaxRows="6"
                  [formControlName]="'comment'"
                  class="comment"
                  placeholder="Comment"
                  type="text"
                  spellcheck="false">
        </textarea>
      </mat-form-field>
  </span>
</ng-template>