contract_stat.aspx.cs

用.net开发的一套管理系统,功能比较全,挺好用的啊!

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
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.Configuration;

namespace cms
{
	/// <summary>
	/// contract_stat 的摘要说明。
	/// </summary>
	public class contract_stat : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DropDownList Ddl_stat;
		protected System.Web.UI.WebControls.TextBox Tbx_date;
		protected System.Web.UI.WebControls.Button Btn_ok;
		protected System.Web.UI.WebControls.Label Lbl_money;
		protected System.Web.UI.WebControls.Label Lbl_count;
		protected System.Web.UI.WebControls.Button Btn_exit;
		protected System.Web.UI.WebControls.DropDownList Ddl_kind;
		protected System.Web.UI.WebControls.DropDownList Ddl_product;
		protected System.Web.UI.WebControls.DropDownList Ddl_customer;
	    SqlConnection cn;
		private void Page_Load(object sender, System.EventArgs e)
		{//判断用户是否为合法用户
			try
			{
				if(Session["User_power"].ToString ()=="0"||Session["User_power"].ToString ()=="2") ;
				else
				{					
					Response.End ();
				}
			}
			catch
			{
				Response.Write ("您不是合法用户，请登入后再操作，<a href='default.aspx'>返回</a>");
				Response.End ();
			}
			//**
	
			//客户名称下拉列表框绑定
			string strconn= ConfigurationSettings.AppSettings["dsn"];
			//连接本地计算机的CMS数据库
			SqlConnection cn0= new SqlConnection (strconn);
			if(!IsPostBack)
			{
				cn0.Open ();
				string mysql="select * from customer";
				SqlCommand cm0=new SqlCommand  (mysql,cn0);
				SqlDataReader dr0=cm0.ExecuteReader ();
				Ddl_customer.Items .Add (new ListItem("所有","-1") );
				while(dr0.Read ())
				{
					Ddl_customer.Items .Add (new ListItem(dr0["Custom_name"].ToString(),dr0["Custom_id"].ToString()) );
				}
				cn0.Close ();
				产品名称下拉列表框绑定
				cn0.Open();
				string mysql1="select * from product";
				SqlCommand cm1=new SqlCommand  (mysql1,cn0);
				SqlDataReader dr1=cm1.ExecuteReader ();
				//Ddl_product.Items .Add (new ListItem("所有","-1") );
				while(dr1.Read ())
				{
					Ddl_product.Items .Add (new ListItem(dr1["Product_name"].ToString() ,dr1["Product_id"].ToString()) );
				}
				cn0.Close ();
			}
			cn=new SqlConnection(strconn);
		}

		#region Web Form Designer generated code
		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.Btn_ok.Click += new System.EventHandler(this.Btn_ok_Click);
			this.Btn_exit.Click += new System.EventHandler(this.Btn_exit_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Btn_ok_Click(object sender, System.EventArgs e)
		{
			if(Ddl_stat.SelectedItem.Value=="0")
			{
				string strsql="select sum(Contract_price),sum(Product_book) from contract,contract_detail where  Contract_start='"+Tbx_date.Text+"' and contract.Contract_id=contract_detail.Contract_id";
				if (Ddl_customer.SelectedItem.Value!="-1")//如果“客户”有选择
				{
					strsql=strsql+" and contract.Custom_id='"+Ddl_customer.SelectedItem.Value+"'";
				}
				if (Ddl_product.SelectedItem.Value!="-1")//如果“产品”有选择
				{
					strsql=strsql+" and contract_detail.Product_id='"+Ddl_product.SelectedItem.Value+"'";
				}
				if (Ddl_kind.SelectedItem.Value!="-1")//如果“合同状态”有选择
				{
					strsql=strsql+" and contract.Contract_state='"+Ddl_kind.SelectedItem.Value+"'";
				}
				SqlCommand cm=new SqlCommand(strsql,cn);
				cn.Open();				
				SqlDataReader dr=cm.ExecuteReader();
				if(dr.Read())
				{
					Lbl_money.Text="本日总金额为："+dr[0].ToString();
					Lbl_count.Text="本日销售量为："+dr[1].ToString();
				}
				else
				{
					Lbl_money.Text="本日总金额为：0";
					Lbl_count.Text="本日销售量为：0";
					
				}
				cn.Close();
			}
			else if(Ddl_stat.SelectedItem.Value=="1")
			{
				string strsql="select sum(Contract_price),sum(Product_book) from contract,contract_detail where  Contract_start like'"+Tbx_date.Text+"%' and contract.Contract_id=contract_detail.Contract_id";
				if (Ddl_customer.SelectedItem.Value!="-1")//如果“客户”有选择
				{
					strsql=strsql+" and contract.Custom_id='"+Ddl_customer.SelectedItem.Value+"'";
				}
				if (Ddl_product.SelectedItem.Value!="-1")//如果“产品”有选择
				{
					strsql=strsql+" and contract_detail.Product_id='"+Ddl_product.SelectedItem.Value+"'";
				}
				if (Ddl_kind.SelectedItem.Value!="-1")//如果“合同状态”有选择
				{
					strsql=strsql+" and contract.Contract_state='"+Ddl_kind.SelectedItem.Value+"'";
				}
				SqlCommand cm=new SqlCommand(strsql,cn);
				cn.Open();				
				SqlDataReader dr=cm.ExecuteReader();
				if(dr.Read())
				{
					Lbl_money.Text="本月总金额为："+dr[0].ToString();
					Lbl_count.Text="本月销售量为："+dr[1].ToString();
				}
				else
				{
					Lbl_money.Text="本月总金额为：0";
					Lbl_count.Text="本月销售量为：0";
					
				}
				cn.Close();
			}
			else
			{
				string strsql="select sum(Contract_price),sum(Product_book) from contract,contract_detail where  Contract_start like'"+Tbx_date.Text+"%' and contract.Contract_id=contract_detail.Contract_id";
				if (Ddl_customer.SelectedItem.Value!="-1")//如果“客户”有选择
				{
					strsql=strsql+" and contract.Custom_id='"+Ddl_customer.SelectedItem.Value+"'";
				}
				if (Ddl_product.SelectedItem.Value!="-1")//如果“产品”有选择
				{
					strsql=strsql+" and contract_detail.Product_id='"+Ddl_product.SelectedItem.Value+"'";
				}
				if (Ddl_kind.SelectedItem.Value!="-1")//如果“合同状态”有选择
				{
					strsql=strsql+" and contract.Contract_state='"+Ddl_kind.SelectedItem.Value+"'";
				}
				SqlCommand cm=new SqlCommand(strsql,cn);
				cn.Open();				
				SqlDataReader dr=cm.ExecuteReader();
				if(dr.Read())
				{
					Lbl_money.Text="本年总金额为："+dr[0].ToString();
					Lbl_count.Text="本年销售量为："+dr[1].ToString();
				}
				else
				{
					Lbl_money.Text="本年总金额为：0";
					Lbl_count.Text="本年销售量为：0";
					
				}
				cn.Close();
			}
		}

		private void Btn_exit_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("default.aspx");
		}
	}
}