C# 調用存儲過程簡單完整的實例代碼

2020-01-18 00:59:12

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CREATE PROC P_TEST@Name VARCHAR(20),
@Rowcount INT OUTPUT
AS
BEGIN
SELECT * FROM T_Customer WHERE NAME=@Name
SET @Rowcount=@@ROWCOUNT
END
GO
----------------------------------------------------------------------------------------
--存儲過程調用如下:
----------------------------------------------------------------------------------------
DECLARE @i INT
EXEC P_TEST 'A',@i OUTPUT
SELECT @i
--結果
/*
Name Address Tel
---------- ---------- --------------------
A Address Telphone

（所影響的行數(shù)為 1 行）

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

（所影響的行數(shù)為 1 行）
*/
----------------------------------------------------------------------------------------

--DotNet 部分(C#)
--WebConfig 文件:
----------------------------------------------------------------------------------------
......
</system.web>


<appSettings>
<add key="ConnectString" value="server=(local);User ID=sa;Password=;database=Test" />
</appSettings>

</configuration>
----------------------------------------------------------------------------------------
--C#代碼:(用到兩個測試控件,DataGrid1(用于顯示綁定結果集合),Lable(用于顯示存儲過程返回單值)

代碼

復制代碼代碼如下:

 
using System.Data.SqlClient; 
private void Page_Load(object sender, System.EventArgs e) 

{ // 在此處放置用戶代碼以初始化頁面 
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; //添加輸入查詢參數(shù)、賦予值 
myCommand.Parameters.Add("@Name",SqlDbType.VarChar); 
myCommand.Parameters["@Name"].Value ="A"; //添加輸出參數(shù) 
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(); //得到存儲過程輸出參數(shù) 
Label1.Text=myCommand.Parameters["@Rowcount"].Value.ToString(); 
if (myConnection.State == ConnectionState.Open) { myConnection.Close(); 
} 
} 