add invoke, if required

Pilz.UI.WinForms.Telerik/Dialogs/RadFlyoutBase.cs

@@ -113,11 +113,17 @@ public partial class RadFlyoutBase : UserControl
     protected RadFlyoutBase()
     {
         InitializeComponent();
+        HandleCreated += RadFlyoutBase_HandleCreated;
         ParentChanged += FlyoutDialogBase_ParentChanged;
         bgWorker_LoadData.DoWork += BgWorker_LoadData_DoWork;
         bgWorker_LoadData.RunWorkerCompleted += BgWorker_LoadData_RunWorkerCompleted;
     }
 
+    private void RadFlyoutBase_HandleCreated(object? sender, EventArgs e)
+    {
+        
+    }
+
     protected virtual void BgWorker_LoadData_DoWork(object? sender, DoWorkEventArgs e)
     {
         OnLoadData(e);
@@ -125,7 +131,10 @@ public partial class RadFlyoutBase : UserControl
 
     protected virtual void BgWorker_LoadData_RunWorkerCompleted(object? sender, RunWorkerCompletedEventArgs e)
     {
-        OnLoadDataCompleted(e);
+        if (InvokeRequired)
+            BeginInvoke(() => OnLoadDataCompleted(e));
+        else
+            OnLoadDataCompleted(e);
     }
 
     protected virtual void LoadData()

Pilz.UI.WinForms.Telerik/Pilz.UI.WinForms.Telerik.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
   
   <PropertyGroup>
-    <Version>2.13.2</Version>
+    <Version>2.13.3</Version>
     <GenerateDocumentationFile>True</GenerateDocumentationFile>
   </PropertyGroup>