ado.net call a stored procedure

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

 

 

------------------------- ------------------ build stored procedures

 

 

CREATE PROCEDURE QueryInfoByName
@name varchar(50),
@age int
AS
select info from tab_cj where [name]=@name and age=@age
GO 

 

 

 

--------------------transfer----------------------------- -

 

 

 

the using (Conn the SqlConnection the SqlConnection new new = ( "the Data .; the Initial Cataog the Source = = Test; the Integrated Security = True"))
        {
            the SqlCommand cmd = conn.CreateCommand ();
            cmd.CommandType = CommandType.StoredProcedure; // execute the stored procedure specified operation
            cmd.CommandText = "QueryInfoByName"; // name of the stored procedure 
            // stored procedure corresponding to the first parameter QueryInfoByName the @name
            the SqlParameter = new new parName the SqlParameter ( "@ name", SqlDbType.VarChar, 50);
            // specified parameters @ to name into a value
            parName.Value = "AA";
            // stored procedure corresponding to the second parameter QueryInfoByName @age
            the SqlParameter = new new parAge the SqlParameter ( "@ Age", SqlDbType.Int);
            // to specify the parameters @age the value transferred
            = 12 parAge.Value;

            // This step is very important, we must set a good add two parameters to the type parameter set Command object's
            cmd.Parameters.Add (parName);
            cmd.Parameters.Add (parAge);

            // one embodiment, the query results back to be displayed on the control DataGrid like
            the DataSet the DataSet new new DS = ();
            the SqlDataAdapter = new new Adapter the SqlDataAdapter (cmd);
            adapter.Fill (DS);

            // Second way, by reading a single value 
            conn.Open ();
            the SqlDataReader = cmd.ExecuteReader Reader ();
            IF (reader.HasRows)
            {
                the while (reader.Read ())
                {
                    Response.Write (reader.GetString (0));
                }
            }
        }

 

 

 

2. Call the stored procedure with an output parameter 

 

------------------------- ------------------ build stored procedures

 

 

 

create procedure getAge
(
@name varchar(50),
@age int output
)
as
select @age=age from tab_cJ where [name]=@name

 

 

 

--------------------transfer----------------------------- -

the using (Conn the SqlConnection the SqlConnection new new = ( "the Data .; the Initial Cataog the Source = = Test; the Integrated Security = True"))
        {
            the SqlCommand cmd = conn.CreateCommand ();
            cmd.CommandType = CommandType.StoredProcedure; // execute the stored procedure specified operation
            cmd.CommandText = "getAge"; // name of the stored procedure 
            the SqlParameter = new new parName the SqlParameter ( "@ name", SqlDbType.VarChar, 50);
            parName.Value = "AA";
            // output corresponding to the stored procedure parameter getAge @ Age
            the SqlParameter = new new parAge the SqlParameter ( "@ Age", SqlDbType.Int);
            parAge.Direction = ParameterDirection.Output;
            cmd.Parameters.Add (parName);
            cmd.Parameters. Add (trimming);
            try
            {
                conn.Open();
                cmd.ExecuteNonQuery();
                int i = int.Parse(parAge.Value.ToString());
                Response.Write(i.ToString());
                conn.Close();
            }
            catch(Exception ex)
            {
                Response.Write(ex.ToString());
            }
            
        }