Fix UI after editing Dictionary key value

Source/Editor/CustomEditors/Editors/DictionaryEditor.cs

@@ -140,6 +140,7 @@ namespace FlaxEditor.CustomEditors.Editors
         private bool _readOnly;
         private bool _notNullItems;
         private bool _canEditKeys;
+        private bool _keyEdited;
 
         /// <summary>
         /// Determines whether this editor[can edit the specified dictionary type.
@@ -351,6 +352,7 @@ namespace FlaxEditor.CustomEditors.Editors
                     newValues[e] = dictionary[e];
             }
             SetValue(newValues);
+            _keyEdited = true; // TODO: use custom UndoAction to rebuild UI after key modification
         }
 
         /// <summary>
@@ -463,6 +465,13 @@ namespace FlaxEditor.CustomEditors.Editors
         /// <inheritdoc />
         public override void Refresh()
         {
+            if (_keyEdited)
+            {
+                _keyEdited = false;
+                RebuildLayout();
+                RebuildParentCollection();
+            }
+
             base.Refresh();
 
             // No support for different collections for now

Source/Editor/CustomEditors/Editors/FloatEditor.cs

@@ -89,7 +89,7 @@ namespace FlaxEditor.CustomEditors.Editors
                 else if (value is double asDouble)
                     _element.Value = (float)asDouble;
                 else
-                    throw new Exception("Invalid value.");
+                    throw new Exception(string.Format("Invalid value type {0}.", value?.GetType().ToString() ?? "<null>"));
             }
         }
     }

Source/Editor/CustomEditors/Editors/IntegerEditor.cs

@@ -1,5 +1,6 @@
 // Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
 
+using System;
 using System.Linq;
 using FlaxEditor.CustomEditors.Elements;
 using FlaxEngine;
@@ -77,7 +78,13 @@ namespace FlaxEditor.CustomEditors.Editors
             }
             else
             {
-                _element.Value = (int)Values[0];
+                var value = Values[0];
+                if (value is int asInt)
+                    _element.Value = asInt;
+                else if (value is float asFloat)
+                    _element.Value = (int)asFloat;
+                else
+                    throw new Exception(string.Format("Invalid value type {0}.", value?.GetType().ToString() ?? "<null>"));
             }
         }
     }