From 4e148aaa848380b3970344aad70562e53040226f Mon Sep 17 00:00:00 2001
From: Mads Rasmussen <madsr@hey.com>
Date: Thu, 5 Jan 2023 14:14:14 +0100
Subject: [PATCH] add null check

---
 .../views/edit/workspace-view-data-type-edit.element.ts     | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Umbraco.Web.UI.Client/src/backoffice/settings/data-types/workspace/views/edit/workspace-view-data-type-edit.element.ts b/src/Umbraco.Web.UI.Client/src/backoffice/settings/data-types/workspace/views/edit/workspace-view-data-type-edit.element.ts
index aeecef13fa..f6023e45ba 100644
--- a/src/Umbraco.Web.UI.Client/src/backoffice/settings/data-types/workspace/views/edit/workspace-view-data-type-edit.element.ts
+++ b/src/Umbraco.Web.UI.Client/src/backoffice/settings/data-types/workspace/views/edit/workspace-view-data-type-edit.element.ts
@@ -1,15 +1,14 @@
 import { UUITextStyles } from '@umbraco-ui/uui-css/lib';
 import { css, html, nothing } from 'lit';
 import { customElement, state } from 'lit/decorators.js';
+import { UmbLitElement } from '@umbraco-cms/element';
 import { UmbModalService } from '../../../../../../core/modal';
 import { UmbWorkspaceDataTypeContext } from '../../workspace-data-type.context';
-import { UmbDataTypeStoreItemType } from '../../../data-type.store';
 import type { DataTypeDetails, ManifestPropertyEditorUI } from '@umbraco-cms/models';
 import { umbExtensionsRegistry } from '@umbraco-cms/extensions-registry';
 
 import '../../../../../shared/property-editors/shared/property-editor-config/property-editor-config.element';
 import '../../../../../shared/components/ref-property-editor-ui/ref-property-editor-ui.element';
-import { UmbLitElement } from '@umbraco-cms/element';
 
 @customElement('umb-workspace-view-data-type-edit')
 export class UmbWorkspaceViewDataTypeEditElement extends UmbLitElement {
@@ -81,6 +80,9 @@ export class UmbWorkspaceViewDataTypeEditElement extends UmbLitElement {
 		this.observe(
 			umbExtensionsRegistry.getByAlias<ManifestPropertyEditorUI>(propertyEditorUIAlias),
 			(propertyEditorUI) => {
+				// TODO: show error. We have stored a PropertyEditorUIAlias and can't find the PropertyEditorUI in the registry.
+				if (!propertyEditorUI) return;
+
 				this._propertyEditorUIName = propertyEditorUI?.meta.label ?? propertyEditorUI?.name ?? '';
 				this._propertyEditorUIAlias = propertyEditorUI?.alias ?? '';
 				this._propertyEditorUIIcon = propertyEditorUI?.meta?.icon ?? '';