diff --git a/B3ClientService/B3ClientService.csproj b/B3ClientService/B3ClientService.csproj
index 783c81f..df12c72 100644
--- a/B3ClientService/B3ClientService.csproj
+++ b/B3ClientService/B3ClientService.csproj
@@ -133,6 +133,7 @@
     <Compile Include="ClientSerializerBo\WeightBill\WeightBillList.cs" />
     <Compile Include="ConvertUtil.cs" />
     <Compile Include="CTuple.cs" />
+    <Compile Include="DataPatch\UpdatePurchaseTypeColumn.cs" />
     <Compile Include="NamedValueTemplate.cs" />
     <Compile Include="Rpcs\BillRpc\BaseInfoRpc.cs" />
     <Compile Include="Rpcs\BillRpc\ByProductWeightRecordRpc.cs" />
diff --git a/B3ClientService/BO/BaseInfo/PurchaseType.cs b/B3ClientService/BO/BaseInfo/PurchaseType.cs
index 0dfa394..d9c3e01 100644
--- a/B3ClientService/BO/BaseInfo/PurchaseType.cs
+++ b/B3ClientService/BO/BaseInfo/PurchaseType.cs
@@ -8,10 +8,7 @@ using TSingSoft.WebPluginFramework;
 namespace BWP.B3ClientService.BO
 {
   [Serializable,BOClass]
-  public class PurchaseType
+  public class PurchaseType : BaseInfo
   {
-    public short ID { get; set; }
-
-    public string Name { get; set; }
   }
 }
diff --git a/B3ClientService/BO/Bill/WeightBill/WeightBill.cs b/B3ClientService/BO/Bill/WeightBill/WeightBill.cs
index a646da9..8d04f7f 100644
--- a/B3ClientService/BO/Bill/WeightBill/WeightBill.cs
+++ b/B3ClientService/BO/Bill/WeightBill/WeightBill.cs
@@ -39,7 +39,7 @@ namespace BWP.B3ClientService.BO
 
     public string Zone_Name { get; set; }
 
-    public short? PurchaseType_ID { get; set; }
+    public long? PurchaseType_ID { get; set; }
 
     public string PurchaseType_Name { get; set; }
 
diff --git a/B3ClientService/DataPatch/UpdatePurchaseTypeColumn.cs b/B3ClientService/DataPatch/UpdatePurchaseTypeColumn.cs
new file mode 100644
index 0000000..c817560
--- /dev/null
+++ b/B3ClientService/DataPatch/UpdatePurchaseTypeColumn.cs
@@ -0,0 +1,19 @@
+using Forks.EnterpriseServices.BusinessInterfaces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using TSingSoft.WebPluginFramework.Install;
+
+namespace BWP.B3ClientService.DataPatch
+{
+  [DataPatch]
+  public class UpdatePurchaseTypeColumn : IDataPatch
+  {
+    public void Execute(TransactionContext context)
+    {
+      var sql = @"update B3ClientService_WeightBill set PurchaseType_ID=PurchaseType_ID+1";
+      context.Session.ExecuteSqlNonQuery(sql);
+    }
+  }
+}
diff --git a/B3ClientService/Rpcs/BaseInfoRpc.cs b/B3ClientService/Rpcs/BaseInfoRpc.cs
index 8986ba3..678c08c 100644
--- a/B3ClientService/Rpcs/BaseInfoRpc.cs
+++ b/B3ClientService/Rpcs/BaseInfoRpc.cs
@@ -101,22 +101,7 @@ namespace BWP.B3ClientService.Rpcs
     [Rpc]
     public static List<WordPair> GetPurchaseTypeList(string input, string args, int top)
     {
-      var query = new DQueryDom(new JoinAlias(typeof(PurchaseType)));
-      if (top > 50)
-        top = 50;
-      query.Range = SelectRange.Top(top);
-      query.Columns.Add(DQSelectColumn.Field("ID"));
-      query.Columns.Add(DQSelectColumn.Field("Name"));
-      var list = new List<WordPair>();
-      using (var session = Dmo.NewSession())
-      {
-        using (var reader = session.ExecuteReader(query))
-        {
-          while (reader.Read())
-            list.Add(new WordPair(reader[1].ToString(), reader[0].ToString()));
-        }
-      }
-      return list;
+      return GetBaseInfoList<PurchaseType>(input, args, top);
     }
 
     [Rpc]
diff --git a/B3ClientService/Rpcs/RpcBO/Bill/WeightBill/SWeightBill.cs b/B3ClientService/Rpcs/RpcBO/Bill/WeightBill/SWeightBill.cs
index 8cfeaa0..226a41d 100644
--- a/B3ClientService/Rpcs/RpcBO/Bill/WeightBill/SWeightBill.cs
+++ b/B3ClientService/Rpcs/RpcBO/Bill/WeightBill/SWeightBill.cs
@@ -27,7 +27,7 @@ namespace BWP.B3ClientService.RpcBO
 
     public long? Zone_ID { get; set; }
 
-    public short? PurchaseType_ID { get; set; }
+    public long? PurchaseType_ID { get; set; }
 
     public long? Car_ID { get; set; }
 
diff --git a/B3ClientService/Tasks/SyncInfoFromServer.cs b/B3ClientService/Tasks/SyncInfoFromServer.cs
index da42200..8eb1842 100644
--- a/B3ClientService/Tasks/SyncInfoFromServer.cs
+++ b/B3ClientService/Tasks/SyncInfoFromServer.cs
@@ -336,20 +336,7 @@ namespace BWP.B3ClientService.Tasks
 
     void SyncPurchaseType()
     {
-      var list = RpcFacade.Call<List<RpcObject>>("/MainSystem/B3ButcherManage/Rpcs/TouchScreenRpcs/GetPurchaseType");
-      using (var context = new TransactionContext())
-      {
-        var sql1 = @"truncate table [B3ClientService_PurchaseType];";
-        context.Session.ExecuteSqlNonQuery(sql1);
-        foreach (RpcObject o in list)
-        {
-          var entity = new PurchaseType();
-          entity.ID = o.Get<short>("ID");
-          entity.Name = o.Get<string>("Name");
-          context.Session.Insert(entity);
-        }
-        context.Commit();
-      }
+      SyncBaseInfo<PurchaseType>("GetPurchaseType");
     }
 
     void SyncSupplier()