C#获取存储过程返回值和输出参数值

1.获取Return返回值







程序代码
//存储过程

//Create PROCEDURE MYSQL

// @a int,

// @b int

//AS

// return @a + @b

//GO

SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ToString());

conn.Open();

SqlCommand MyCommand = new SqlCommand("MYSQL", conn);

MyCommand.CommandType = CommandType.StoredProcedure;

MyCommand.Parameters.Add(new SqlParameter("@a", SqlDbType.Int));

MyCommand.Parameters["@a"].Value = 10;

MyCommand.Parameters.Add(new SqlParameter("@b", SqlDbType.Int));

MyCommand.Parameters["@b"].Value = 20;

MyCommand.Parameters.Add(new SqlParameter("@return", SqlDbType.Int));

MyCommand.Parameters["@return"].Direction = ParameterDirection.ReturnValue;

MyCommand.ExecuteNonQuery();

Response.Write(MyCommand.Parameters["@return"].Value.ToString());

2.获取Output输出参数值



程序代码
//存储过程

//Create PROCEDURE MYSQL

// @a int,

// @b int,

// @c int output

//AS

// Set @c = @a + @b

//GO

SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ToString());

conn.Open();

SqlCommand MyCommand = new SqlCommand("MYSQL", conn);

MyCommand.CommandType = CommandType.StoredProcedure;

MyCommand.Parameters.Add(new SqlParameter("@a", SqlDbType.Int));

MyCommand.Parameters["@a"].Value = 20;

MyCommand.Parameters.Add(new SqlParameter("@b", SqlDbType.Int));

MyCommand.Parameters["@b"].Value = 20;

MyCommand.Parameters.Add(new SqlParameter("@c", SqlDbType.Int));

MyCommand.Parameters["@c"].Direction = ParameterDirection.Output;

MyCommand.ExecuteNonQuery();

Response.Write(MyCommand.Parameters["@c"].Value.ToString());

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以下代码转自网络：

C#
[b]接收

存储过程返回值

:[/b]

public static int User_Add(User us)

{

int iRet;

SqlConnection conn = new SqlConnection(Conn_Str);

SqlCommand cmd = new SqlCommand("User_Add", conn);

cmd.CommandType = CommandType.StoredProcedure;

cmd.Parameters.AddWithValue("@UName", us.UName);

cmd.Parameters.AddWithValue("@UPass", us.UPass);

cmd.Parameters.AddWithValue("@PassQuestion", us.PassQuestion);

cmd.Parameters.AddWithValue("@PassKey", us.PassKey);

cmd.Parameters.AddWithValue("@Email", us.Email);

cmd.Parameters.AddWithValue("@RName", us.RName);

cmd.Parameters.AddWithValue("@Area", us.Area);

cmd.Parameters.AddWithValue("@Address", us.Address);

cmd.Parameters.AddWithValue("@ZipCodes", us.ZipCodes);

cmd.Parameters.AddWithValue("@Phone", us.Phone);

cmd.Parameters.AddWithValue("@QQ", us.QQ);

cmd.Parameters.Add("@RETURN_VALUE", "").Direction = ParameterDirection.ReturnValue;


try

{

conn.Open();

cmd.ExecuteNonQuery();

iRet = (int)cmd.Parameters["@RETURN_VALUE"].Value;

}

catch (SqlException ex)

{

throw ex;

}

finally

{

conn.Close();

}

return iRet;

}
C#[b]接收

存储过程输出
参数

:[/b]

public static decimal Cart_UserAmount(int UID)

{

decimal iRet;

SqlConnection conn = new SqlConnection(Conn_Str);

SqlCommand cmd = new SqlCommand("Cart_UserAmount", conn);

cmd.CommandType = CommandType.StoredProcedure;

cmd.Parameters.AddWithValue("@UID", UID);

cmd.Parameters.Add("@Amount", SqlDbType.Decimal).Direction=ParameterDirection.Output;


try

{

conn.Open();

cmd.ExecuteNonQuery();

iRet = (decimal)cmd.Parameters["@Amount"].Value;

}

catch (SqlException ex)

{

throw ex;

}

finally

{

conn.Close();

}

return iRet;

}