medlist.aspx.cs

一个自制的药房销售管理系统

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;				//sql

namespace medicine
{
	/// <summary>
	/// medlist 的摘要说明。
	/// </summary>
	public class medlist : System.Web.UI.Page
	{
		protected System.Web.UI.HtmlControls.HtmlForm Form1;
		protected System.Web.UI.WebControls.DataGrid dg;
	
		private void bind()
		{
			SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);	
			con.Open();
			string sel="SELECT * FROM medicine order by mid desc";
			SqlDataAdapter adp=new SqlDataAdapter(sel,con);

			DataSet ds=new DataSet();
			adp.Fill(ds,"med");
			dg.DataSource=ds.Tables["med"].DefaultView;
			dg.DataBind();
			ds.Dispose();
			adp.Dispose();
			con.Close();
			con.Dispose();
		}

		private void Page_Load(object sender, System.EventArgs e)
		{
			if(IsPostBack)	return;
			bind();
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.dg.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.dg_PageIndexChanged);
			this.dg.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.FormatDataGrid_ItemDataBound);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		protected void FormatDataGrid_ItemDataBound(object source,
			System.Web.UI.WebControls.DataGridItemEventArgs e)
		{
			//  确保处理的是数据行，而不是Header或者Footer
			if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
			{
				try
				{
					DateTime x=DateTime.Parse(e.Item.Cells[4].Text);
					string s=DateTime.Parse(e.Item.Cells[4].Text).ToShortDateString();
					e.Item.Cells[4].Text=s;
					int months=int .Parse(e.Item.Cells[5].Text);
					x=x.AddMonths(months);
					if(x < DateTime.Now)
					{
						e.Item.Cells[7].Text ="已过期";
						e.Item.Cells[7].ForeColor = System.Drawing.Color.Red;
						e.Item.BackColor = System.Drawing.Color.DarkKhaki;
					}
				}
				catch{};
			}
		}

		private void dg_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			dg.CurrentPageIndex = e.NewPageIndex;
			bind();
		}
	}
}