ADO.NET运用存储过程例子

-------------------建表------------------
CREATE TABLE [tab_cJ] (
[id] [int] IDENTITY (1, 1) NOT NULL PRIMARY KEY,
[name] [varchar] (50) ,
[age] [int] NULL ,
[info] [varchar] (200)
)

------------------建存储过程-------------------------
CREATE PROCEDURE QueryInfoByName
@name varchar(50),
@age int
AS
select info from tab_cj where [name]=@name and age=@age
GO
--------------------调用-------------------------------
protected void GetInfoByName(string txt_name, int txt_age)
{
SqlConnection conn = new SqlConnection("server=localhost;database=dbDemo;uid=sa");
SqlCommand cmd = conn.CreateCommand();
cmd.CommandType = CommandType.StoredProcedure; //指定执行存储过程操作
cmd.CommandText = "QueryInfoByName"; //存储过程名称
//对应存储过程QueryInfoByName的第一个参数@name
SqlParameter parName = new SqlParameter("@name", SqlDbType.VarChar, 50);
//指定参数@name要转入的值
parName.Value = txt_name;
//对应存储过程QueryInfoByName的第二个参数@age
SqlParameter parAge = new SqlParameter("@age", SqlDbType.Int);
//指定参数@age要转入的值
parAge.Value = txt_age;

//这一步非常重要，一定将设置好的两个参数类型添加到Command对象的参数集合里
cmd.Parameters.Add(parName);
cmd.Parameters.Add(parAge);

//方式一，查询回来的结果需要显示在DataGrid之类的控件上
DataSet ds = new DataSet();
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
adapter.Fill(ds);

//方式二，按单个值读取
conn.Open();
SqlDataReader reader = cmd.ExecuteReader();
if (reader.HasRows)
{
while (reader.Read())
{
Response.Write(reader.GetString(0));
}
}
conn.Close();
}