diff a/A00通用窗体/U_ProductInfoSel.dfm b/A00通用窗体/U_ProductInfoSel.dfm	(rejected hunks)
@@ -97,6 +97,7 @@
     object Tv1: TcxGridDBTableView
       OnDblClick = TV1DblClick
       Navigator.Buttons.CustomButtons = <>
+      ScrollbarAnnotations.CustomAnnotations = <>
       DataController.DataSource = DS_1
       DataController.Summary.DefaultGroupSummaryItems = <
         item
@@ -139,12 +140,14 @@
       object Tv1Column2: TcxGridDBColumn
         Caption = #21697#29260
         DataBinding.FieldName = 'Brand'
+        DataBinding.IsNullValueType = True
         HeaderAlignmentHorz = taCenter
         Width = 79
       end
       object Tv1Column1: TcxGridDBColumn
         Caption = #32534#21495
         DataBinding.FieldName = 'P_Code'
+        DataBinding.IsNullValueType = True
         HeaderAlignmentHorz = taCenter
         Width = 78
       end
@@ -152,6 +155,7 @@
         Tag = 2
         Caption = #21697#21517
         DataBinding.FieldName = 'P_Name'
+        DataBinding.IsNullValueType = True
         PropertiesClassName = 'TcxButtonEditProperties'
         Properties.Buttons = <
           item
@@ -165,6 +169,7 @@
         Tag = 2
         Caption = #35268#26684
         DataBinding.FieldName = 'P_Spec'
+        DataBinding.IsNullValueType = True
         HeaderAlignmentHorz = taCenter
         HeaderGlyphAlignmentHorz = taCenter
         Width = 65
@@ -185,6 +191,7 @@
       object v1Column9: TcxGridDBColumn
         Caption = #21333#20215
         DataBinding.FieldName = 'Price'
+        DataBinding.IsNullValueType = True
         HeaderAlignmentHorz = taCenter
         Width = 71
       end
@@ -192,6 +199,7 @@
         Tag = 2
         Caption = #22791#27880
         DataBinding.FieldName = 'Note'
+        DataBinding.IsNullValueType = True
         Width = 102
       end
     end