* UIEditForm：增加一个扩展方法

SunnyUI/Forms/UIFormHelper.cs

@@ -594,10 +594,15 @@ namespace Sunny.UI
             frm.TopMost = true;
         }
 
-        public static DialogResult ShowDialog(this UIEditOption option)
+        public static bool ShowDialog(this UIEditOption option)
         {
             UIEditForm frm = new UIEditForm(option);
-            return frm.ShowDialog();
+            return frm.ShowDialog() == DialogResult.OK;
+        }
+
+        public static UIEditForm Create(this UIEditOption option)
+        {
+            return new UIEditForm(option);
         }
     }
 }