docs(material/form-field): fixed propname in guide (#25328)

not defined `elRef` was changed on defined `_elementRef`
angular · Aug 16, 2022 · a2eb778 · a2eb778
1 parent 1fbeb79
commit a2eb778
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/guides/creating-a-custom-form-field-control.md b/guides/creating-a-custom-form-field-control.md
@@ -388,7 +388,7 @@ click. In our case we'll just focus the first `<input>` if the user isn't about
 ```ts
 onContainerClick(event: MouseEvent) {
   if ((event.target as Element).tagName.toLowerCase() != 'input') {
-    this.elRef.nativeElement.querySelector('input').focus();
+    this._elementRef.nativeElement.querySelector('input').focus();
   }
 }
 ```