Sql Server获取存储过程返回值的综合例子

SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnStr"].ToString());
conn.Open();
SqlCommand MyCommand = new SqlCommand("nb_order", conn); //存储过程名字
MyCommand.CommandType = CommandType.StoredProcedure;　　　//指定类型为存储过程
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(); //执行存储过程
Response.Write(MyCommand.Parameters["@return"].Value.ToString()); //取得return的返回值

SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnStr"].ToString());
conn.Open();
SqlCommand MyCommand = new SqlCommand("nb_order", 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()); //指定取得存储过程的返回值

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; //指定存储过程 AddWithValue可以指定名称和值，而Add需要指定名称，类型，再给value
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; //指定输出参数是返回值
try
{
conn.Open();
cmd.ExecuteNonQuery();　　　　　　　　　　　　　　　　　　　//执行存储过程
iRet = (int)cmd.Parameters["@RETURN_VALUE"].Value; //取得return的值
}
catch (SqlException ex)
{
throw ex;
}
finally
{
conn.Close();
}
return iRet;
}

public static decimal Cart_UserAlinuxjishu/9952.html target=_blank class=infotextkey>mount(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; //利用Add方法为其添加名称，类型和输出参数
try
{
conn.Open();
cmd.ExecuteNonQuery();
iRet = (decimal)cmd.Parameters["@Amount"].Value; //取得存储过程中的输出参数
}
catch (SqlException ex)
{
throw ex;
}
finally
{
conn.Close();
}
return iRet;
}

string sqlw = string.Format("exec sp_UserInfo {0}", uid);
DataTable dsuser = SqlConn.GetDataSet(sqlw).Tables[0];
public static DataSet GetDataSet(string sql)
{
string connStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConnStr"].ToString();
SqlConnection conn = new SqlConnection(connStr);
SqlCommand cmd = new SqlCommand(sql, conn);
SqlDataAdapter da = new SqlDataAdapter(cmd); //直接用SqlDataAdapter将结果集取出来放入dataset中
DataSet ds = new DataSet();
da.Fill(ds);
conn.Close();
cmd.Dispose();
return ds;
}