show_med.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;

namespace medicine
{
	/// <summary>
	/// show_med 的摘要说明。
	/// </summary>
	public class show_med : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox name;
		protected System.Web.UI.WebControls.TextBox password;
		protected System.Web.UI.WebControls.Button log;
		protected System.Web.UI.WebControls.Panel loginpanel;
		protected System.Web.UI.WebControls.Panel PanelModify;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.TextBox TextBox3;
		protected System.Web.UI.WebControls.TextBox TextBox4;
		protected System.Web.UI.WebControls.TextBox TextBox5;
		protected System.Web.UI.WebControls.TextBox TextBox6;
		protected System.Web.UI.WebControls.TextBox TextBox7;
		protected System.Web.UI.WebControls.TextBox TextBox8;
		protected System.Web.UI.WebControls.Label label;
		protected System.Web.UI.WebControls.Button modify;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.Label Label6;
		protected System.Web.UI.WebControls.Label Label7;
		protected System.Web.UI.WebControls.Label Label8;
		protected System.Web.UI.WebControls.Button ButtonDel;
		
		private string mid="0";
	
		private void load()					//页面中两大表格的刷新
		{
			mid=Request.QueryString["mid"];
			if(mid==null || mid=="")
				mid="0";

			SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);	
			con.Open();
			string sel="SELECT mname,price,product_place,product_time,store_time,number,intime,note FROM medicine WHERE mid=@mid";
			SqlCommand cmd=new SqlCommand(sel,con);
			cmd.Parameters.Add("@mid",SqlDbType.Int,4);
			cmd.Parameters["@mid"].Value=int.Parse(mid);
			SqlDataReader reader=cmd.ExecuteReader();
			if(reader.Read()==false)
			{
				label.Text="该药品不存在";
				loginpanel.Visible=false;
				PanelModify.Visible=false;
				reader.Close();
				cmd.Dispose();
				con.Close();
				con.Dispose();
				return;
			}
			Label1.Text=reader.GetValue(0).ToString();
			Label2.Text=reader.GetValue(1).ToString();
			Label3.Text=reader.GetValue(2).ToString();
			Label4.Text=reader.GetValue(3).ToString();
			Label5.Text=reader.GetValue(4).ToString();
			Label6.Text=reader.GetValue(5).ToString();
			Label7.Text=reader.GetValue(6).ToString();
			Label8.Text=reader.GetValue(7).ToString();
			reader.Close();
			cmd.Dispose();
			con.Close();
			con.Dispose();

			if((string)Session["name"]==null)
			{
				loginpanel.Visible=true;
				PanelModify.Visible=false;
			}
			else
			{
				loginpanel.Visible=false;
				PanelModify.Visible=true;
				copy_data();
			}
		}
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(IsPostBack)	return;
			ButtonDel.Attributes.Add("onclick","javascript:return   confirm('确定删除该组数据？');");
			modify.Attributes.Add("onclick","javascript:return   confirm('确定修改数据？');");
			load();
		}

		#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.log.Click += new System.EventHandler(this.log_Click);
			this.modify.Click += new System.EventHandler(this.modify_Click);
			this.ButtonDel.Click += new System.EventHandler(this.Button1_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion


		private void copy_data()
		{
			TextBox1.Text=Label1.Text;
			TextBox2.Text=Label2.Text;
			TextBox3.Text=Label3.Text;
			TextBox4.Text=Label4.Text;
			TextBox5.Text=Label5.Text;
			TextBox6.Text=Label6.Text;
			TextBox7.Text=Label7.Text;
			TextBox8.Text=Label8.Text;
		}

		private void log_Click(object sender, System.EventArgs e)		//登陆
		{
			SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);	
			con.Open();
			string sel="SELECT name FROM admin WHERE (name = @name) AND (password = @password)";
			SqlCommand cmd=new SqlCommand(sel,con);
			cmd.Parameters.Add("@name",SqlDbType.NVarChar,50);
			cmd.Parameters["@name"].Value=name.Text;
			cmd.Parameters.Add("@password",SqlDbType.NVarChar,50);
			string k=encode.code(password.Text);
			cmd.Parameters["@password"].Value=encode.code(password.Text);	//加密后的密码
			string s=encode.code(password.Text);
			object x=cmd.ExecuteScalar();
			if(x!=null)	
			{
				Session["name"]=x.ToString();
				this.Response.Redirect(this.Request.RawUrl.ToString());		//刷新页面
			}
			else Response.Write("<script language=javascript>alert('用户名或密码错误,请重新输入');</script>");
		}
		
		private void modify_Click(object sender, System.EventArgs e)
		{
			if(TextBox1.Text=="" || TextBox2.Text=="" || TextBox3.Text=="" || TextBox4.Text=="" || TextBox5.Text=="" || TextBox6.Text=="" || TextBox7.Text=="")
			{
				Response.Write("<script language=javascript>alert('请填写完整的信息');</script>");
				return;
			}
			SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);	
			con.Open();
			string sel="UPDATE medicine SET mname=@mname,price=@price,product_place=@product_place,product_time=@product_time,store_time=@store_time,number=@number,intime=@intime,note=@note WHERE mid=@mid";
			SqlCommand cmd=new SqlCommand(sel,con);

			mid=Request.QueryString["mid"];
			if(mid==null || mid=="")
				mid="0";
			cmd.Parameters.Add("@mid",SqlDbType.Int,4);
			cmd.Parameters["@mid"].Value=mid;

			cmd.Parameters.Add("@mname",SqlDbType.NVarChar,40);
			cmd.Parameters["@mname"].Value=TextBox1.Text;

			cmd.Parameters.Add("@price",SqlDbType.Float,8);
			cmd.Parameters["@price"].Value=TextBox2.Text;

			cmd.Parameters.Add("@product_place",SqlDbType.NVarChar,40);
			cmd.Parameters["@product_place"].Value=TextBox3.Text;

			cmd.Parameters.Add("@product_time",SqlDbType.DateTime,8);
			cmd.Parameters["@product_time"].Value=TextBox4.Text;
			
			cmd.Parameters.Add("@store_time",SqlDbType.Int,4);
			cmd.Parameters["@store_time"].Value=TextBox5.Text;

			cmd.Parameters.Add("@number",SqlDbType.Int,4);
			cmd.Parameters["@number"].Value=TextBox6.Text;
			
			cmd.Parameters.Add("@intime",SqlDbType.DateTime,8);
			cmd.Parameters["@intime"].Value=TextBox7.Text;			

			cmd.Parameters.Add("@note",SqlDbType.NText,512);
			cmd.Parameters["@note"].Value=TextBox8.Text;

			cmd.ExecuteScalar();
			label.Text="修改数据成功";
			load();
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);	
			con.Open();
			string sel="delete from medicine WHERE mid=@mid";
			SqlCommand cmd=new SqlCommand(sel,con);

			mid=Request.QueryString["mid"];
			if(mid==null || mid=="")
				mid="0";
			cmd.Parameters.Add("@mid",SqlDbType.Int,4);
			cmd.Parameters["@mid"].Value=mid;
			cmd.ExecuteScalar();
			this.Response.Redirect(".\\medlist.aspx");
		}
	}
}