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C#调用存储过程简单完整例子

时间:2014-12-16 23:01来源:电脑教程学习网 www.etwiki.cn 编辑:admin

CREATE PROC P_TEST
@Name VARCHAR(20),
@Rowcount INT OUTPUT
AS
BEGIN
SELECT * FROM T_Customer WHERE NAME=@Name
SET @Rowcount=@@ROWCOUNT
END
GO
----------------------------------------------------------------------------------------
--存储过程调用如下:
----------------------------------------------------------------------------------------
DECLARE @i INT
EXEC P_TEST 'A',@i OUTPUT
SELECT @i
--结果
/*
Name Address Tel
---------- ---------- --------------------
A Address Telphone
(所影响的行数为 1 行)


-----------
1

(所影响的行数为 1 行)
*/
----------------------------------------------------------------------------------------
--DotNet 部分(C#)
--WebConfig 文件:
----------------------------------------------------------------------------------------
......
</system.web>

<!-- 数据库连接字符串
-->
<appSettings>
<add key="ConnectString" value="server=(local);User ID=sa;Password=;database=Test" />
</appSettings>

</configuration>
----------------------------------------------------------------------------------------
--C#代码:(用到两个测试控件,DataGrid1(用于显示绑定结果集合),Lable(用于显示存储过程返回单值)
----------------------------------------------------------------------------------------
//添加数据库引用
using System.Data.SqlClient;
......
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
String DBConnStr;
DataSet MyDataSet=new DataSet();
System.Data.SqlClient.SqlDataAdapter DataAdapter=new System.Data.SqlClient.SqlDataAdapter();
DBConnStr=System.Configuration.ConfigurationSettings.AppSettings["ConnectString"];
System.Data.SqlClient.SqlConnection myConnection = new System.Data.SqlClient.SqlConnection(DBConnStr);
if (myConnection.State!=ConnectionState.Open)
{
myConnection.Open();
}
System.Data.SqlClient.SqlCommand myCommand = new System.Data.SqlClient.SqlCommand("P_Test",myConnection);
myCommand.CommandType=CommandType.StoredProcedure;
//添加输入查询参数、赋予值
myCommand.Parameters.Add("@Name",SqlDbType.VarChar);
myCommand.Parameters["@Name"].Value ="A";

//添加输出参数
myCommand.Parameters.Add("@Rowcount",SqlDbType.Int);
myCommand.Parameters["@Rowcount"].Direction=ParameterDirection.Output;


myCommand.ExecuteNonQuery();
DataAdapter.SelectCommand = myCommand;

if (MyDataSet!=null)
{
DataAdapter.Fill(MyDataSet,"table");
}

DataGrid1.DataSource=MyDataSet;
DataGrid1.DataBind();
//得到存储过程输出参数
Label1.Text=myCommand.Parameters["@Rowcount"].Value.ToString();

if (myConnection.State == ConnectionState.Open)
{
myConnection.Close();
}

}
----------------------------------------------------------------------------------------
运行以上代码即可(返回记录集合和存储过程返回值)

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标签(Tag):c# c#技巧 c#实例教程 c#源代码 c#基础教程
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