微软原版SQLHelper类

1 // ===============================================================================
   2 // Microsoft Data Access Application Block for .NET
   3 // http://msdn.microsoft.com/library/en-us/dnbda/html/daab-rm.asp
   4 //
   5 // SQLHelper.cs
   6 //
   7 // This file contains the implementations of the SqlHelper and SqlHelperParameterCache
   8 // classes.
   9 //
  10 // For more information see the Data Access Application Block Implementation Overview.
  11 // ===============================================================================
  12 // Release history
  13 // VERSION    DESCRIPTION
  14 //   2.0    Added support for FillDataset, UpdateDataset and "Param" helper methods
  15 //
  16 // ===============================================================================
  17 // Copyright (C) 2000-2001 Microsoft Corporation
  18 // All rights reserved.
  19 // THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY
  20 // OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT
  21 // LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR
  22 // FITNESS FOR A PARTICULAR PURPOSE.
  23 // ==============================================================================
  24
  25 using System;
  26 using System.Data;
  27 using System.Xml;
  28 using System.Data.SqlClient;
  29 using System.Collections;
  30
  31 namespace Microsoft.ApplicationBlocks.Data
  32 {
  33     /// <summary>
  34     /// The SqlHelper class is intended to encapsulate high performance, scalable best practices for
  35     /// common uses of SqlClient
  36     /// </summary>
  37     public sealed class SqlHelper
  38     {
  39       &nb

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