teachersystemdb.cs

电子选课系统 电子选课系统电子选课系统电子选课系统

using System;
using System.Data;
using System.Data.SqlClient;

namespace Park.Common
{
	/// <summary>
	/// TeacherSystemDB 的摘要说明。
	/// </summary>
	public class TeacherSystemDB
	{

		public static int AddClass(string teacherid,string courseid,string classname)
		{
			SqlConnection myConnection=Utils.GetConnection();

			SqlCommand myCommand = new SqlCommand("TeacherSystem_Add_Course", myConnection);

			// Mark the Command as a SPROC
			myCommand.CommandType = CommandType.StoredProcedure;

			// Add Parameters to SPROC
			SqlParameter TeacherID = new SqlParameter("@teacherid", SqlDbType.NVarChar, 20);
			TeacherID.Value = teacherid;
			myCommand.Parameters.Add(TeacherID);

			// Add Parameters to SPROC
			SqlParameter CourseID = new SqlParameter("@courseid", SqlDbType.Int);
			CourseID.Value = courseid;
			myCommand.Parameters.Add(CourseID);

			// Add Parameters to SPROC
			SqlParameter ClassName = new SqlParameter("@classname", SqlDbType.VarChar, 10);
			ClassName.Value = classname;
			myCommand.Parameters.Add(ClassName);


			// Add Parameters to SPROC
			SqlParameter retval = new SqlParameter("@retval", SqlDbType.Int);
			retval.Direction = ParameterDirection.Output;
			myCommand.Parameters.Add(retval);

			// Execute the command
			myConnection.Open();

			myCommand.ExecuteNonQuery();		

			myCommand.Dispose();
			myConnection.Dispose();

			return  (int)retval.Value;
		}

		public static void DeleteClass(string teacherid, string classid)
		{
			SqlConnection myConnection=Utils.GetConnection();

			SqlCommand myCommand = new SqlCommand("TeacherSystem_Delete_Class", myConnection);

			// Mark the Command as a SPROC
			myCommand.CommandType = CommandType.StoredProcedure;

			// Add Parameters to SPROC
			SqlParameter TeacherID = new SqlParameter("@teacherid", SqlDbType.NVarChar, 20);
			TeacherID.Value = teacherid;
			myCommand.Parameters.Add(TeacherID);

			// Add Parameters to SPROC
			SqlParameter ClassID = new SqlParameter("@classid", SqlDbType.Int);
			ClassID.Value = classid;
			myCommand.Parameters.Add(ClassID);


			// Execute the command
			myConnection.Open();

			myCommand.ExecuteNonQuery();
			myCommand.Dispose();
			myConnection.Dispose();

			return ;
		}



	}
}