item.cs

中国海洋大学211工程网站的全部源码

using System;
using System.Data.OleDb;

namespace _211
{
	/// <summary>
	/// Item 的摘要说明。
	/// </summary>
	public class Item:DBTable
	{
		private uint ItemId;
		private string ItemName;
		private int ClassId;
		public Item(uint II):base("Item")
		{
			ItemId=II;
			cmd=new OleDbCommand("select * from ["+TableName+"] where ItemId="+ItemId,conn);
			OleDbDataReader dr=cmd.ExecuteReader();
			if(dr.HasRows)
			{
				dr.Read();
				HasRecord=true;
				ItemName=dr["ItemName"].ToString();
				ClassId=Convert.ToInt32(dr["ClassId"].ToString());
			}
			dr.Close();
			cmd.Dispose();
		}

		public Item(string IN,bool IsReadDataBase):base("Item")
		{
			ItemName=StringManager.LoginLetterSelected(IN);
			if(IsReadDataBase)
			{
				cmd=new OleDbCommand("select * from ["+TableName+"] where ItemName='"+ItemName+"'",conn);
				OleDbDataReader dr=cmd.ExecuteReader();
				if(dr.HasRows)
				{
					dr.Read();
					HasRecord=true;
					ItemId=Convert.ToUInt32(dr.GetValue(0));
					ClassId=Convert.ToInt32(dr["ClassId"].ToString());
				}
				dr.Close();
				cmd.Dispose();
			}
		}

		public override void Add()
		{
			base.Add();

			cmd=new OleDbCommand("insert into "+TableName+" (ItemName,ClassId) values ('"+ItemName+"',"+ClassId+")",conn);
			try
			{
				cmd.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				throw ex;
			}
			finally
			{
				cmd.Dispose();
			}
		}

		public override void Update()
		{
			base.Update();

			cmd=new OleDbCommand("update "+TableName+" set ItemName='"+ItemName+"',ClassId="+ClassId+" where ItemId="+ItemId,conn);
			try
			{
				cmd.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				throw ex;
			}
			finally
			{
				cmd.Dispose();
			}
		}

		public override void Del()
		{
			base.Del();

			cmd=new OleDbCommand("Delete from "+TableName+" where ItemId="+ItemId,conn);
			try
			{
				cmd.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				throw ex;
			}
			finally
			{
				cmd.Dispose();
			}
		}

		public uint getItemId()
		{
			return ItemId;
		}

		public int getClassId()
		{
			return ClassId;
		}

		public string getItemName()
		{
			return ItemName;
		}

		public void setClassId(uint CI)
		{
			ClassId=Convert.ToInt32(CI);
		}

		public void setItemName(string IN)
		{
			ItemName=StringManager.LoginLetterSelected(IN);
		}
	}
}