medsearch.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>
	/// medsearch 的摘要说明。
	/// </summary>
	public class medsearch : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.Button Button2;
		protected System.Web.UI.WebControls.TextBox TextBox3;
		protected System.Web.UI.WebControls.TextBox TextBox4;
		protected System.Web.UI.WebControls.Button Button3;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.DataGrid dg;

		private void bind(string sel)
		{
			SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);	
			con.Open();
			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(this.IsPostBack)	return;
			dg.Visible=false;
		}

		#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.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.Button3.Click += new System.EventHandler(this.Button3_Click);
			this.dg.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.dg_ItemDataBound);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button1_Click(object sender, System.EventArgs e)
		{
			string sel="SELECT * FROM medicine WHERE (mname LIKE @mname) order by mid desc";
			dg.Visible=true;
			SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);	
			con.Open();
			SqlDataAdapter adp=new SqlDataAdapter(sel,con);
			adp.SelectCommand.Parameters.Add("@mname",SqlDbType.NVarChar,40);
			adp.SelectCommand.Parameters["@mname"].Value='%'+TextBox1.Text+'%';

			DataSet ds=new DataSet();
			adp.Fill(ds,"med");
			dg.DataSource=ds.Tables["med"].DefaultView;
			dg.DataBind();
			ds.Dispose();
			adp.Dispose();
			con.Close();
			con.Dispose();
			Label1.Text="按药名搜索结果如下";
		}

		private void Button2_Click(object sender, System.EventArgs e)
		{
			string sel="SELECT * FROM medicine WHERE (product_place LIKE @product_place) order by mid desc";
			dg.Visible=true;
			SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);	
			con.Open();
			SqlDataAdapter adp=new SqlDataAdapter(sel,con);
			adp.SelectCommand.Parameters.Add("@product_place",SqlDbType.NVarChar,40);
			adp.SelectCommand.Parameters["@product_place"].Value='%'+TextBox2.Text+'%';

			DataSet ds=new DataSet();
			adp.Fill(ds,"med");
			dg.DataSource=ds.Tables["med"].DefaultView;
			dg.DataBind();
			ds.Dispose();
			adp.Dispose();
			con.Close();
			con.Dispose();
			Label1.Text="按产地搜索结果如下";
		}

		private void Button3_Click(object sender, System.EventArgs e)
		{
			string sel="SELECT * FROM medicine WHERE (price >=@lowprice and price <=@highprice) order by mid desc";
			dg.Visible=true;
			SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);	
			con.Open();
			SqlDataAdapter adp=new SqlDataAdapter(sel,con);
			adp.SelectCommand.Parameters.Add("@lowprice",SqlDbType.NVarChar,40);
			adp.SelectCommand.Parameters["@lowprice"].Value=TextBox3.Text;

			adp.SelectCommand.Parameters.Add("@highprice",SqlDbType.NVarChar,40);
			adp.SelectCommand.Parameters["@highprice"].Value=TextBox4.Text;

			DataSet ds=new DataSet();
			adp.Fill(ds,"med");
			dg.DataSource=ds.Tables["med"].DefaultView;
			dg.DataBind();
			ds.Dispose();
			adp.Dispose();
			con.Close();
			con.Dispose();
			Label1.Text="按价格搜索结果如下";
		}

		private void dg_ItemDataBound(object sender, 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.AliceBlue;
					}
				}
				catch{};
			}
		}
	}
}