使用Data access block

一、配置Data block所需参数
1,应用程序的配置文件(*.exe.config或者*.dll.config或者Web.config)

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="enterpriselibrary.configurationSettings" type="Microsoft.Practices.EnterpriseLibrary.Configuration.ConfigurationManagerSectionHandler, Microsoft.Practices.EnterpriseLibrary.Configuration" />
  </configSections>
  <enterpriselibrary.configurationSettings xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" defaultSection="" applicationName="Application" xmlns="http://www.microsoft.com/practices/enterpriselibrary/08-31-2004/configuration">
  <configurationSections>
    <configurationSection name="dataConfiguration" encrypt="false">
      <storageProvider xsi:type="XmlFileStorageProviderData" name="XML File Storage Provider" path="dataConfiguration.config" />
      <dataTransformer xsi:type="XmlSerializerTransformerData" name="Xml Serializer Transformer">
        <includeTypes />
      </dataTransformer>
    </configurationSection>
  </configurationSections>
  <keyAlgorithmStorageProvider xsi:nil="true" />
</enterpriselibrary.configurationSettings> 
</configuration>

2,配置数据库连接串(dataConfiguration.config)

<?xml version="1.0" encoding="utf-8"?>
<dataConfiguration>
  <xmlSerializerSection type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null">
    <enterpriseLibrary.databaseSettings xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" defaultInstance="InstanceWebinpuy" xmlns="http://www.microsoft.com/practices/enterpriselibrary/08-31-2004/data">
      <databaseTypes>
        <databaseType name="Sql Server" type="Microsoft.Practices.EnterpriseLibrary.Data.Sql.SqlDatabase, Microsoft.Practices.EnterpriseLibrary.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
      </databaseTypes>
      <instances>
        <instance name="InstanceWebinpuy" type="Sql Server" connectionString="Sql Connection String" />
      </instances>
      <connectionStrings>
        <connectionString name="Sql Connection String">
          <parameters>
            <parameter name="database" value="BMS_Webinput" isSensitive="false" />
            <parameter name="Integrated Security" value="False" isSensitive="false" />
            <parameter name="server" value="192.168.1.28" isSensitive="false" />
          </parameters>
        </connectionString>
      </connectionStrings>
    </enterpriseLibrary.databaseSettings>
  </xmlSerializerSection>
</dataConfiguration>

二、执行Sql语句

public string GetCustomerList()
        }

三、调用存储过程
1、插入新记录并从存储过程获取返回值
存储过程：

Create   PROCEDURE usp_AddGroup
 @StaffID VARCHAR(36),
 @GroupName VARCHAR(40),
 @Count  INT
AS
 IF EXISTS(SELECT * FROM StaffGroup WHERE StaffID=@StaffID AND GroupName=@GroupName)
  RETURN 1
 ELSE
  INSERT StaffGroup (GroupName,StaffID,MaxCount) VALUES(@GroupName,@StaffID,@Count)
 RETURN @@ERROR
GO

调用代码：

private void button4_Click(object sender, System.EventArgs e)
        }

2、返回记录集并获取存储过程返回值
存储过程：

CREATE procedure usp_GetValidStaffs
            AS
                Select * from staff where Isdelete = 0 and ShowOnHomePage=1
                RETURN 8
            GO

调用代码：

private void button5_Click(object sender, System.EventArgs e)
        }

3、返回记录集并通过输出参数获取返回值
存储过程：

CREATE procedure usp_GetValidStaffs
                @Count INT OUTPUT
            AS
                Select * from staff where Isdelete = 0 and ShowOnHomePage=1
                SET  @Count = 8
            GO

调用代码：

private void button6_Click(object sender, System.EventArgs e)
        }

4、DataRearder与输出参数
存储过程：

CREATE procedure usp_GetValidStaffs
                @Count INT OUTPUT
            AS
                Select * from staff where Isdelete = 0 and ShowOnHomePage=1
                SET  @Count = 8
            GO

调用代码：

private void button8_Click(object sender, System.EventArgs e)
        }

5、DataRearder与返回值
存储过程：

CREATE procedure usp_GetValidStaffs
            AS
                Select * from staff where Isdelete = 0 and ShowOnHomePage=1
                RETURN 8
            GO

调用代码：

private void button7_Click(object sender, System.EventArgs e)
        }

四、事务处理：

public static bool OpretRapportFraskabelon (string CVR, int maanedValoer)
        }