feat: fmBcus GridView 改用 ObjectDataSource

- 新增 BcusDAC（SelectPage/SelectCount/SelectBCNUMIndex）

- dsBCUSGrid 改 ObjectDataSource（EnablePaging）

- Search/Selected/DataBound 調整；跳回選取列改用 SelectBCNUMIndex

- 計畫文檔更新盤點與待辦

Doc/GridView改用ObjectDataSource計畫.md

@@ -16,7 +16,7 @@
 
 | # | 檔案 | GridView ID | SqlDataSource ID | 來源表 | 既有 DAC | 狀態 |
 |---|---|---|---|---|---|---|
-| 1 | forms/customer/fmBcus.ascx | gvBCUS | dsBCUSGrid | BCUS | 無 | 待辦 |
+| 1 | forms/customer/fmBcus.ascx | gvBCUS | dsBCUSGrid | BCUS | 無→BcusDAC | **完成** |
 | 2 | forms/customer/fmBpaa.ascx | gvBPAA | dsBPAAGrid | BPAA | BpaaDAC(無 Select) | 待辦 |
 | 3 | forms/customer/fmBpab.ascx | gvBPAB | dsBPABGrid | BPAB | 無 | 待辦 |
 | 4 | forms/customer/fmBpabBig.ascx | gvBPAB | dsBPABGrid | BPAB | 無 | 待辦 |
@@ -130,7 +130,8 @@
 - [x] fmBPSN：fmBpsn.ascx.cs 調整 Search / Selected / OnInit
 - [x] fmBPSN：編譯驗證（aspnet_compiler 通過，產出 App_Code.dll）
 - [ ] fmBPSN：手動功能驗證（各篩選、分頁、跳頁、NODATA）
-- [ ] 其餘 23 個 Grid 依樣板陸續轉換（逐檔 commit）
+- [x] fmBcus：新增 BcusDAC（SelectPage/SelectCount/SelectBCNUMIndex）；dsBCUSGrid 改 ObjectDataSource；Search/Selected/DataBound 調整；編譯通過
+- [ ] 其餘 22 個 Grid 依樣板陸續轉換（逐檔 commit）
 
 ## 變更紀錄
 
@@ -141,3 +142,4 @@
 | 2026-09-10 | 修復 BpsnDAC.cs 亂碼註解（原檔為 Big5，編輯後毀損），自 git HEAD 還原中文註解，並將檔案統一改存為 UTF-8 with BOM；重新編譯通過 |
 | 2026-09-10 | 以 LocalDB 合成資料（2 萬/10 萬筆）基準測試舊 SqlDataSource 與新 ObjectDataSource；結果：首頁列數 ~10,000×、記憶體趨近 0、DB 時間約 6×；深頁跳轉 reads 反而增加 |
 | 2026-09-10 | 分頁 SQL 形式比較：`BETWEEN` 與 `TOP` 相同（無改善）；改採 KEYSET（窄集合算 ROWID 再 join 明細）並將 SelectCount/SelectBPENOIndex 改為窄集合。深頁 2,166ms/262萬 reads → 48ms/6,549 reads；count 714ms/608,176 reads → 110ms/6,253 reads；aspnet_compiler 編譯通過 |
+| 2026-09-10 | 轉換 fmBcus（BCUS）：新增 BcusDAC；dsBCUSGrid 改 ObjectDataSource；跳回選取列改用 SelectBCNUMIndex；aspnet_compiler 編譯通過 |

Web/App_Code/DAC/BcusDAC.cs

@@ -0,0 +1,110 @@
+using System;
+using System.Data;
+using System.Data.Common;
+using System.Text;
+using System.ComponentModel;
+using Wellan.Data;
+
+/// <summary>
+/// 客戶資料的資料處理類別
+/// </summary>
+[DataObject(true)]
+public class BcusDAC : Wellan.Data.WDAC
+{
+    public BcusDAC()
+    {
+    }
+
+    public BcusDAC(string connectionConfig, string connectionConfigName)
+        : this()
+    {
+        this._connectionConfig = connectionConfig;
+        this._connectionConfigName = connectionConfigName;
+    }
+
+    public BcusDAC(WQuery query)
+    {
+        this._query = query;
+    }
+
+    /// <summary>
+    /// 客戶資料 Grid 分頁查詢
+    /// </summary>
+    [DataObjectMethod(DataObjectMethodType.Select)]
+    public DataTable SelectPage(int startRowIndex, int maximumRows, string BCNUM, string BCNAM)
+    {
+        DbCommand cmd = Query.NewCommand();
+
+        StringBuilder filter = new StringBuilder();
+        BuildFilter(filter, cmd, BCNUM, BCNAM);
+
+        cmd.CommandText = String.Format(
+            @"SELECT * FROM
+              (
+                SELECT *, ROW_NUMBER() OVER (ORDER BY BCNUM) AS ROWID
+                FROM BCUS WHERE 1=1 {0}
+              ) AS TMP
+              WHERE ROWID BETWEEN @STARTROWINDEX + 1 AND @STARTROWINDEX + @MAXIMUMROWS
+              ORDER BY ROWID",
+            filter.ToString());
+        cmd.Parameters.Add(Query.NewParameter("STARTROWINDEX", startRowIndex));
+        cmd.Parameters.Add(Query.NewParameter("MAXIMUMROWS", maximumRows));
+
+        return Query.Select(cmd);
+    }
+
+    /// <summary>
+    /// 客戶資料 Grid 查詢筆數
+    /// </summary>
+    [DataObjectMethod(DataObjectMethodType.Select)]
+    public int SelectCount(string BCNUM, string BCNAM)
+    {
+        DbCommand cmd = Query.NewCommand();
+
+        StringBuilder filter = new StringBuilder();
+        BuildFilter(filter, cmd, BCNUM, BCNAM);
+
+        cmd.CommandText = String.Format("SELECT COUNT(*) FROM BCUS WHERE 1=1 {0}", filter.ToString());
+        return WDAC.GetInt32Value(Query.ExecuteScalar(cmd));
+    }
+
+    /// <summary>
+    /// 取得指定客戶編號在查詢結果中的序號 (0 起算)
+    /// </summary>
+    public int SelectBCNUMIndex(string targetBCNUM, string BCNUM, string BCNAM)
+    {
+        DbCommand cmd = Query.NewCommand();
+
+        StringBuilder filter = new StringBuilder();
+        BuildFilter(filter, cmd, BCNUM, BCNAM);
+
+        cmd.CommandText = String.Format(
+            @"SELECT ROWID - 1 FROM
+              (
+                SELECT BCNUM, ROW_NUMBER() OVER (ORDER BY BCNUM) AS ROWID
+                FROM BCUS WHERE 1=1 {0}
+              ) AS TMP WHERE BCNUM = @TARGET",
+            filter.ToString());
+        cmd.Parameters.Add(Query.NewParameter("TARGET", targetBCNUM));
+
+        object o = Query.ExecuteScalar(cmd);
+        return (o is Int32 || o is Int64) ? WDAC.GetInt32Value(o) : -1;
+    }
+
+    /// <summary>
+    /// 組出客戶資料 Grid 的查詢條件 (與舊 AddSearch 行為一致)
+    /// </summary>
+    private void BuildFilter(StringBuilder sb, DbCommand cmd, string BCNUM, string BCNAM)
+    {
+        if (!string.IsNullOrEmpty(BCNUM))
+        {
+            sb.Append(" AND BCNUM LIKE @BCNUM1 ");
+            cmd.Parameters.Add(Query.NewParameter("BCNUM1", BCNUM + "%"));
+        }
+        if (!string.IsNullOrEmpty(BCNAM))
+        {
+            sb.Append(" AND BCNAM LIKE @BCNAM1 ");
+            cmd.Parameters.Add(Query.NewParameter("BCNAM1", BCNAM + "%"));
+        }
+    }
+}

Web/forms/customer/fmBcus.ascx

@@ -43,11 +43,14 @@
       </table>
   </asp:View>
   <asp:View ID="EditView" runat="server">
-    <asp:SqlDataSource ID="dsBCUSGrid" runat="server"
+    <asp:ObjectDataSource ID="dsBCUSGrid" runat="server"
-      ConflictDetection="CompareAllValues" SelectCommand="SELECT * FROM BCUS WHERE 1=0"
+      TypeName="BcusDAC" SelectMethod="SelectPage" SelectCountMethod="SelectCount"
-      ConnectionString="Data Source=SRYANG-2K3;Initial Catalog=THINKYU_WEB;Persist Security Info=True;User ID=sa"
+      EnablePaging="true" OnSelected="dsBCUSGrid_Selected">
-      ProviderName="System.Data.SqlClient" OnSelected="dsBCUSGrid_Selected">
+      <SelectParameters>
-    </asp:SqlDataSource>
+        <asp:Parameter Name="BCNUM" Type="String" />
+        <asp:Parameter Name="BCNAM" Type="String" />
+      </SelectParameters>
+    </asp:ObjectDataSource>
     <asp:SqlDataSource ID="dsBCUSForm" runat="server"
       ConflictDetection="CompareAllValues" SelectCommand="SELECT * FROM BCUS WHERE BCNUM=@BCNUM"
       DeleteCommand="DELETE BCUS&#13;&#10; WHERE BCNUM = @OLD_BCNUM&#13;&#10; AND APPNO = @OLD_APPNO"

Web/forms/customer/fmBcus.ascx.cs

@@ -20,10 +20,6 @@ public partial class forms_customer_fmBcus : Wellan.Web.UI.WUserControlBase
     private string _BCNUM = "";
     private string _BCNAM = "";
     private string _OLD_BCNUM = "";
-    private string select = "SELECT * ";
-    private string from = " FROM BCUS ";
-    private string where = " WHERE 1=1 ";
-    private string order = " ORDER BY BCNUM";
     private string _bcusCls = "";
     private string _bcusZon = "";
 
@@ -40,7 +36,6 @@ public partial class forms_customer_fmBcus : Wellan.Web.UI.WUserControlBase
     {
         base.OnInit(e);
         dsBCUSForm.ConnectionString = ConnectionString;
-        dsBCUSGrid.ConnectionString = ConnectionString;
 
         GetGridViewRowColor(gvBCUS);
 
@@ -95,15 +90,23 @@ public partial class forms_customer_fmBcus : Wellan.Web.UI.WUserControlBase
     // 查詢動作
     private new void Search()
     {
-        StringBuilder sql = new StringBuilder();
+        dsBCUSGrid.SelectParameters["BCNUM"].DefaultValue = _BCNUM;
-        sql.Append(select);
+        dsBCUSGrid.SelectParameters["BCNAM"].DefaultValue = _BCNAM;
-        sql.Append(from);
+
-        sql.Append(where);
+        // 返回時，回到之前選擇的那一筆
-        dsBCUSGrid.SelectParameters.Clear();
+        if (ParamList != null && ParamList.ContainsKey("BCNUM"))
-        AddSearch(sql, dsBCUSGrid, "BCNUM", _BCNUM, "", true);
+        {
-        AddSearch(sql, dsBCUSGrid, "BCNAM", _BCNAM, "", true);
+            string bcnum = WDAC.GetStringValue(ParamList["BCNUM"]);
-        sql.Append(order);
+
-        dsBCUSGrid.SelectCommand = sql.ToString();
+            int rowIndex = new BcusDAC(Query).SelectBCNUMIndex(bcnum, _BCNUM, _BCNAM);
+            if (rowIndex >= 0)
+            {
+                gvBCUS.PageIndex = rowIndex / gvBCUS.PageSize;
+                gvBCUS.SelectedIndex = rowIndex - gvBCUS.PageIndex * gvBCUS.PageSize;
+            }
+
+            ParamList.Remove("BCNUM");
+        }
     }
 
     private new void CalcFields(SqlDataSourceCommandEventArgs e)
@@ -130,23 +133,6 @@ public partial class forms_customer_fmBcus : Wellan.Web.UI.WUserControlBase
         if (gvBCUS.SelectedIndex == -1)
             gvBCUS.SelectedIndex = 0;
 
-        // 返回時，回到之前選擇的那一筆 
-        if (ParamList.ContainsKey("BCNUM"))
-        {
-            string bcnum = WDAC.GetStringValue(ParamList["BCNUM"]);
-
-            DataView dv = dsBCUSGrid.Select(new DataSourceSelectArguments()) as DataView;
-            dv.RowFilter = String.Format("BCNUM='{0}'", bcnum);
-            if (dv.Count > 0)
-            {
-                int rowIndex = dv.Table.Rows.IndexOf(dv[0].Row);
-                gvBCUS.PageIndex = (rowIndex / gvBCUS.PageSize);
-                gvBCUS.SelectedIndex = rowIndex - gvBCUS.PageIndex * gvBCUS.PageSize;
-            }
-
-            ParamList.Remove("BCNUM");
-        }
-
         fvBCUS.DataBind();
     }
 
@@ -157,9 +143,9 @@ public partial class forms_customer_fmBcus : Wellan.Web.UI.WUserControlBase
         gvBCUS.DataBind();
     }
 
-    protected void dsBCUSGrid_Selected(object sender, SqlDataSourceStatusEventArgs e)
+    protected void dsBCUSGrid_Selected(object sender, ObjectDataSourceStatusEventArgs e)
     {
-        if (e.AffectedRows == 0)
+        if (e.ReturnValue is Int32 && WDAC.GetInt32Value(e.ReturnValue) == 0)
         {
             if (MultiView1.ActiveViewIndex == 0)
             {