diff --git a/DepartmentPortal/Common/DesktopTools/MainControls/GenericControlEntityElement.cs b/DepartmentPortal/Common/DesktopTools/MainControls/GenericControlEntityElement.cs
index 2bb342e..3d8a335 100644
--- a/DepartmentPortal/Common/DesktopTools/MainControls/GenericControlEntityElement.cs
+++ b/DepartmentPortal/Common/DesktopTools/MainControls/GenericControlEntityElement.cs
@@ -84,19 +84,22 @@ namespace DesktopTools.Controls
 				try
 				{
 					_element = value;
-					SetValues?.Invoke(_element);
-					if (tabControl.Visible)
+					if (_element != null)
 					{
-						foreach (TabPage page in tabControl.TabPages)
+						SetValues?.Invoke(_element);
+						if (tabControl.Visible)
 						{
-							if (page.Name == tabPageMain.Name)
+							foreach (TabPage page in tabControl.TabPages)
 							{
-								continue;
-							}
-							if (page.Controls[0] is IControlChildEntity cntrl)
-							{
-								cntrl.ParentId = _element.Id;
-								cntrl.Open(new ControlOpenModel { OpenMode = ControlOpenMode.Child });
+								if (page.Name == tabPageMain.Name)
+								{
+									continue;
+								}
+								if (page.Controls[0] is IControlChildEntity cntrl)
+								{
+									cntrl.ParentId = _element.Id;
+									cntrl.Open(new ControlOpenModel { OpenMode = ControlOpenMode.Child });
+								}
 							}
 						}
 					}