ASP.NET如何调用MySQL的存储过程

public void Delete_procedure() //“删除”的存储过程
{
string str_orgid = Client_Str; //获得orgid
string myConn_str = WebConfigurationManager.ConnectionStrings["MySqlConnectionString"].ConnectionString;
MySqlConnection myConn = new MySqlConnection(myConn_str);
MySqlCommand myComm = new MySqlCommand("DELETEDB", myConn);//(Client_Str);
//myComm.Connection = myConn;
try
{
myComm.Connection.Open();
myComm.CommandType = CommandType.StoredProcedure;
MySqlParameter myParameter;
myParameter = new MySqlParameter("?m_orgid", MySqlDbType.String);
myParameter.Value = str_orgid;
myParameter.Direction = ParameterDirection.Input;
myComm.Parameters.Add(myParameter);

//myComm.CommandText = "DELETEDB"; //存储过程名
//myComm.Parameters.Add("m_orgid", str_orgid);
myComm.ExecuteNonQuery();
}
catch
{
myComm.Connection.Close();
myComm.Dispose();
}
finally
{
myComm.Connection.Close();
myComm.Dispose();
}
}

CREATE PROCEDURE `DELETEDB`(IN m_orgid char(12))
BEGIN
delete from hardwareinfo where orgid=m_orgid;
delete from addressinfo where orgid=m_orgid;
delete from netspeedinfo where orgid=m_orgid;
delete from memoryinfo where orgid=m_orgid;
delete from urlinfo where orgid=m_orgid;
delete from urluserinfo where orgid=m_orgid;
delete from orderinfo where orgid=m_orgid;
delete from softinfo where orgid=m_orgid;
delete from orginfo where orgid=m_orgid;
delete from harddiskinfo where orgid=m_orgid;
delete from hotfixinfo where orgid=m_orgid;
delete from userinfo where orgid=m_orgid;
delete from softuserinfo where orgid=m_orgid;
delete from systeminfo where orgid=m_orgid;
END

protected void Button1_Click(object sender, EventArgs e)
{
int rowsAffected;
SqlParameter[] parameters = {
new SqlParameter("@title",TextBox1.Text),
new SqlParameter("@content", TextBox2.Text)
};
sdh.RunProcedure("[AddNew]", parameters, out rowsAffected);

Response.Write("OK!");
}

/**//// <summary>
/// 执行存储过程，返回影响的行数
/// </summary>
/// <param name="storedProcName">存储过程名</param>
/// <param name="parameters">存储过程参数</param>
/// <param name="rowsAffected">影响的行数</param>
/// <returns></returns>
public int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected)
{

using (SqlConnection connection = new SqlConnection(strConn))
{
int result;
connection.Open();
SqlCommand command = BuildIntCommand(connection, storedProcName, parameters);
rowsAffected = command.ExecuteNonQuery();
result = (int)command.Parameters["ReturnValue"].Value;
//Connection.Close();
return result;
}
}

create proc AddNew
(
@title varchar(50),
@content varchar(50)
)
as
insert into News values(@title,@content)