Fix possible null ref exception.

ChebanovDD · ChebanovDD · commit aa83ab4066b7 · 2022-08-19T16:02:39.000+07:00
diff --git a/src/UnityMvvmToolkit.UnityPackage/Assets/Plugins/UnityMvvmToolkit/Runtime/UI/DocumentView.cs b/src/UnityMvvmToolkit.UnityPackage/Assets/Plugins/UnityMvvmToolkit/Runtime/UI/DocumentView.cs
@@ -14,7 +14,7 @@ public abstract class DocumentView<TBindingContext> : MonoBehaviourView<TBinding
     {
         private UIDocument _uiDocument;
 
-        public VisualElement RootVisualElement => _uiDocument.rootVisualElement;
+        public VisualElement RootVisualElement => _uiDocument == null ? null : _uiDocument.rootVisualElement;
 
         protected override void OnInit()
         {

Original file line number	Diff line number	Diff line change
`@@ -14,7 +14,7 @@ public abstract class DocumentView<TBindingContext> : MonoBehaviourView<TBinding`
`14`	`14`	`{`
`15`	`15`	`private UIDocument _uiDocument;`
`16`	`16`
`17`		`- public VisualElement RootVisualElement => _uiDocument.rootVisualElement;`
	`17`	`+ public VisualElement RootVisualElement => _uiDocument == null ? null : _uiDocument.rootVisualElement;`
`18`	`18`
`19`	`19`	`protected override void OnInit()`
`20`	`20`	`{`