commentdb.cs

这是一个管理系统的源码

			{
				throw new MyException("10001","数据库连接失败!",ex);
			}

			try
			{
				//执行数据库的存储过程（访问数据库）
				dr = myCommand.ExecuteReader(CommandBehavior.CloseConnection);
			}
			catch(Exception ex)
			{
				throw new MyException("10002",ex.Message,ex);
			}

			//返回 dr
			return dr;
		}	
	
		public int AddCommentType(String sCommentTypeName)
		{
			//定义数据库的Connection and Command 
			SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
			SqlCommand myCommand = new SqlCommand("Pr_AddCommentType",myConnection);

			//定义访问数据库的方式为存储过程
			myCommand.CommandType = CommandType.StoredProcedure;

			//创建访问数据库的参数
			SqlParameter parameterCommentTypeName = new SqlParameter("@CommentTypeName",SqlDbType.VarChar,50);
			parameterCommentTypeName.Value = sCommentTypeName;
			myCommand.Parameters.Add(parameterCommentTypeName);

			SqlParameter parameterID = new SqlParameter("@ID",SqlDbType.Int,4);
			parameterID.Direction = ParameterDirection.ReturnValue;
			myCommand.Parameters.Add(parameterID);

			try
			{
				//打开数据库的连接
				myConnection.Open();
			}
			catch(Exception ex)
			{
				throw new MyException("10001","数据库连接失败!",ex);
			}

			try
			{
				//执行数据库的存储过程（访问数据库）
				myCommand.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				throw new MyException("10002",ex.Message,ex);
			}
			finally 
			{
				if (myConnection.State == ConnectionState.Open)
				{
					//关闭数据库的连接
					myConnection.Close();
				}
			}

			return (int)parameterID.Value;
		}

		public void UpdateCommentType(int nCommentTypeID,String sCommentType)
		{
			//定义数据库的Connection and Command 
			SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
			SqlCommand myCommand = new SqlCommand("Pr_UpdateCommentType",myConnection);

			//定义访问数据库的方式为存储过程
			myCommand.CommandType = CommandType.StoredProcedure;

			//创建访问数据库的参数
			SqlParameter parameterCommentTypeID = new SqlParameter("@CommentTypeID",SqlDbType.Int,4);
			parameterCommentTypeID.Value = nCommentTypeID;
			myCommand.Parameters.Add(parameterCommentTypeID);

			SqlParameter parameterCommentType = new SqlParameter("@CommentType",SqlDbType.VarChar,50);
			parameterCommentType.Value = sCommentType;
			myCommand.Parameters.Add(parameterCommentType);


			try
			{
				//打开数据库的连接
				myConnection.Open();
			}
			catch(Exception ex)
			{
				throw new MyException("10001","数据库连接失败!",ex);
			}

			try
			{
				//执行数据库的存储过程（访问数据库）
				myCommand.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				throw new MyException("10002",ex.Message,ex);
			}
			finally 
			{
				if (myConnection.State == ConnectionState.Open)
				{
					//关闭数据库的连接
					myConnection.Close();
				}
			}
		}

		public void DeleteCommentType(int nCommentTypeID)
		{
			//定义数据库的Connection and Command 
			SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
			SqlCommand myCommand = new SqlCommand("Pr_DeleteCommentType",myConnection);

			//定义访问数据库的方式为存储过程
			myCommand.CommandType = CommandType.StoredProcedure;

			//创建访问数据库的参数
			SqlParameter parameterCommentTypeID = new SqlParameter("@CommentTypeID",SqlDbType.Int,4);
			parameterCommentTypeID.Value = nCommentTypeID;
			myCommand.Parameters.Add(parameterCommentTypeID);

			try
			{
				//打开数据库的连接
				myConnection.Open();
			}
			catch(Exception ex)
			{
				throw new MyException("10001","数据库连接失败!",ex);
			}

			try
			{
				//执行数据库的存储过程（访问数据库）
				myCommand.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				throw new MyException("10002",ex.Message,ex);
			}
			finally 
			{
				if (myConnection.State == ConnectionState.Open)
				{
					//关闭数据库的连接
					myConnection.Close();
				}
			}
		}
	}

	public class EmployeeCommentTypeDB
	{
		public SqlDataReader GetCommentTypeByEmployee(int nEmployeeID)
		{
			//定义数据库的Connection and Command 
			SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
			SqlCommand myCommand = new SqlCommand("Pr_GetCommentTypeByEmployee",myConnection);

			//定义访问数据库的方式为存储过程
			myCommand.CommandType = CommandType.StoredProcedure;

			//添加储存过程的参数
			SqlParameter parameterEmployeeID = new SqlParameter("@EmployeeID",SqlDbType.Int,4);
			parameterEmployeeID.Value = nEmployeeID;
			myCommand.Parameters.Add(parameterEmployeeID);

			SqlDataReader dr = null;

			try
			{
				//打开数据库的连接
				myConnection.Open();
			}
			catch(Exception ex)
			{
				throw new MyException("10001","数据库连接失败!",ex);
			}

			try
			{
				//执行数据库的存储过程（访问数据库）
				dr = myCommand.ExecuteReader(CommandBehavior.CloseConnection);
			}
			catch(Exception ex)
			{
				throw new MyException("10001",ex.Message,ex);
			}

			//返回 dr
			return dr;
		}

		public void AddEmployeeCommentType(int nEmployeeID,int nCommentTypeID)
		{
			//定义数据库的Connection and Command 
			SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
			SqlCommand myCommand = new SqlCommand("Pr_AddEmployeeCommentType",myConnection);

			//定义访问数据库的方式为存储过程
			myCommand.CommandType = CommandType.StoredProcedure;

			//创建访问数据库的参数		
			SqlParameter parameterEmployeeID = new SqlParameter("@EmployeeID",SqlDbType.Int,4);
			parameterEmployeeID.Value = nEmployeeID;
			myCommand.Parameters.Add(parameterEmployeeID);

			SqlParameter parameterCommentTypeID = new SqlParameter("@CommentTypeID",SqlDbType.Int,4);
			parameterCommentTypeID.Value = nCommentTypeID;
			myCommand.Parameters.Add(parameterCommentTypeID);

			try
			{
				//打开数据库的连接
				myConnection.Open();
			}
			catch(Exception ex)
			{
				throw new MyException("10001","数据库连接失败!",ex);
			}

			try 
			{
				//执行数据库的存储过程（访问数据库）
				myCommand.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				throw new MyException("10001",ex.Message,ex);
			}
			finally 
			{
				if (myConnection.State == ConnectionState.Open)
				{
					//关闭数据库的连接
					myConnection.Close();
				}
			}
		}

		public void DeleteEmployeeCommentType(int nEmployeeID,int nCommentTypeID)
		{
			//定义数据库的Connection and Command 
			SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
			SqlCommand myCommand = new SqlCommand("Pr_DeleteEmployeeCommentType",myConnection);

			//定义访问数据库的方式为存储过程
			myCommand.CommandType = CommandType.StoredProcedure;

			//创建访问数据库的参数
			SqlParameter parameterCommentTypeID = new SqlParameter("@CommentTypeID",SqlDbType.Int,4);
			parameterCommentTypeID.Value = nCommentTypeID;
			myCommand.Parameters.Add(parameterCommentTypeID);

			SqlParameter parameterEmployeeID = new SqlParameter("@EmployeeID",SqlDbType.Int,4);
			parameterEmployeeID.Value = nEmployeeID;
			myCommand.Parameters.Add(parameterEmployeeID);

			try
			{
				//打开数据库的连接
				myConnection.Open();
			}
			catch(Exception ex)
			{
				throw new MyException("10001","数据库连接失败!",ex);
			}

			try 
			{
				//执行数据库的存储过程（访问数据库）
				myCommand.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				throw new MyException("10001",ex.Message,ex);
			}
			finally 
			{
				if (myConnection.State == ConnectionState.Open)
				{
					//关闭数据库的连接
					myConnection.Close();
				}
			}
		}
	}
}