addcontract.aspx.cs

用ASP.NET做的客户管理系统,该系统以客户管理中涉及的销售管理,合同管理为主体.

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>
	/// addcontract 的摘要说明。
	/// </summary>
	public class addcontract : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox Tbx_contractid;
		protected System.Web.UI.WebControls.DropDownList Ddl_state;
		protected System.Web.UI.WebControls.TextBox Tbx_date1;
		protected System.Web.UI.WebControls.TextBox Tbx_date3;
		protected System.Web.UI.WebControls.TextBox Tbx_date2;
		protected System.Web.UI.WebControls.TextBox Tbx_person;
		protected System.Web.UI.WebControls.TextBox Tbx_count1;
		protected System.Web.UI.WebControls.TextBox Tbx_count2;
		protected System.Web.UI.WebControls.TextBox Tbx_price;
		protected System.Web.UI.WebControls.Button Btn_reset;
		protected System.Web.UI.WebControls.Button Btn_exit;
		protected System.Web.UI.WebControls.CustomValidator Cv_contract;
		protected System.Web.UI.WebControls.CustomValidator Cv_customer;
		protected System.Web.UI.WebControls.Button Btn_add;
		protected System.Web.UI.WebControls.Label Lbl_note;
		protected System.Web.UI.WebControls.TextBox Tbx_allmon;
	    SqlConnection cn;
		protected System.Web.UI.WebControls.DropDownList Ddl_customer;
		protected System.Web.UI.WebControls.DropDownList Ddl_product;
		double x;
		private void Page_Load(object sender, System.EventArgs e)
		{//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 ();
				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 ();
				while(dr1.Read ())
				{
					Ddl_product.Items .Add (new ListItem(dr1["Product_name"].ToString() ,dr1["Product_id"].ToString()) );
				}
				cn0.Close ();
			}
			// 在此处放置用户代码以初始化页面			
			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.Cv_contract.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.Cv_contract_ServerValidate);
			this.Cv_customer.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.Cv_customer_ServerValidate);
			this.Tbx_count1.TextChanged += new System.EventHandler(this.Tbx_count1_TextChanged);
			this.Btn_add.Click += new System.EventHandler(this.Btn_add_Click);
			this.Btn_reset.Click += new System.EventHandler(this.Btn_reset_Click);
			this.Btn_exit.Click += new System.EventHandler(this.Btn_exit_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

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

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

		private void Btn_add_Click(object sender, System.EventArgs e)
		{
		  cn.Open();
		  SqlCommand cm=new SqlCommand("insert_contract_detail_1",cn);
		  cm.CommandType=CommandType.StoredProcedure;
			try
			{
				cm.Parameters.Add(new SqlParameter("@Contract_id",SqlDbType.Char,10));
				cm.Parameters["@Contract_id"].Value=Tbx_contractid.Text;
				cm.Parameters.Add(new SqlParameter("@Product_id",SqlDbType.Char,10));
				cm.Parameters["@Product_id"].Value=Ddl_product.SelectedItem.Value;
				cm.Parameters.Add(new SqlParameter("@Product_book",SqlDbType.Int,4));
				cm.Parameters["@Product_book"].Value=Tbx_count1.Text;
				cm.Parameters.Add(new SqlParameter("@Product_send",SqlDbType.Int,4));
				cm.Parameters["@Product_send"].Value=Tbx_count2.Text;
				cm.Parameters.Add(new SqlParameter("@Product_price",SqlDbType.Money,8));
				cm.Parameters["@Product_price"].Value=Tbx_price.Text;
				cm.ExecuteNonQuery();
				Lbl_note.Text="添加成功，请返回";
				
			}
			catch
			{
				Lbl_note.Text="添加失败，请检查输入！";
				Lbl_note.Style["color"]="red";
			}
				SqlCommand cm1=new SqlCommand("insert_contract_1",cn);
				cm1.CommandType=CommandType.StoredProcedure;
			try
			{
				cm1.Parameters.Add(new SqlParameter("@Contract_id",SqlDbType.Char,10));
				cm1.Parameters["@Contract_id"].Value=Tbx_contractid.Text;
				cm1.Parameters.Add(new SqlParameter("@Custom_id",SqlDbType.Char,10));
				cm1.Parameters["@Custom_id"].Value=Ddl_customer.SelectedItem.Value;
				cm1.Parameters.Add(new SqlParameter("@Contract_state",SqlDbType.Int,4));
				cm1.Parameters["@Contract_state"].Value=Ddl_state.SelectedItem.Value;
				cm1.Parameters.Add(new SqlParameter("@Contract_start",SqlDbType.VarChar,50));
				cm1.Parameters["@Contract_start"].Value=Tbx_date1.Text;
				cm1.Parameters.Add(new SqlParameter("@Contract_send",SqlDbType.DateTime,8));
				cm1.Parameters["@Contract_send"].Value=Tbx_date3.Text;
				cm1.Parameters.Add(new SqlParameter("@Contract_finish",SqlDbType.DateTime,8));
				cm1.Parameters["@Contract_finish"].Value=Tbx_date2.Text;
				cm1.Parameters.Add(new SqlParameter("@Contract_person",SqlDbType.Char,10));
				cm1.Parameters["@Contract_person"].Value=Tbx_person.Text;
				cm1.Parameters.Add(new SqlParameter("@Contract_price",SqlDbType.Money,8));
				cm1.Parameters["@Contract_price"].Value=Tbx_allmon.Text;
				cm1.ExecuteNonQuery();
			}
			catch
			{
				Lbl_note.Text="添加失败，请检查输入！";
				Lbl_note.Style["color"]="red";
			}
			cn.Close();
			cn.Open();
			string strsql1="select sum(Contract_price) from contract where Custom_id='"+Ddl_customer.SelectedItem.Value+"'";
            SqlCommand cm3=new SqlCommand(strsql1,cn);
			SqlDataReader dr1=cm3.ExecuteReader();
			if(dr1.Read())
			{
				x=Convert.ToDouble (dr1[0].ToString());
			}
			cn.Close();
			string strsql2="update customer set Custom_level=@Custom_level where Custom_id='"+Ddl_customer.SelectedItem.Value+"'";
			SqlCommand cm2=new SqlCommand(strsql2,cn);
			cm2.Parameters.Add(new SqlParameter("@Custom_level",SqlDbType.Int,4));
			if(x>=500000)
			cm2.Parameters["@Custom_level"].Value="3";
			else if(x>=1500000)
			cm2.Parameters["@Custom_level"].Value="2";
			else if(x>=3500000)
			cm2.Parameters["@Custom_level"].Value="1";
			else
            cm2.Parameters["@Custom_level"].Value="4";			
			cm2.Connection.Open();
			try
			{
				cm2.ExecuteNonQuery();
			}
			catch(SqlException)
			{
				Lbl_note.Text="添加失败";
				Lbl_note.Style["color"]="red";
			}
			cm2.Connection.Close();

		}

		private void Cv_contract_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
			cn.Open();
			SqlCommand cm=new SqlCommand("select * from contract where Contract_id=@Contract_id",cn);
			cm.Parameters.Add("@Contract_id",SqlDbType.Char,10);
			cm.Parameters["@Contract_id"].Value=Tbx_contractid.Text;
			SqlDataReader dr=cm.ExecuteReader();
			if(dr.Read())
			{
				args.IsValid=false;
			}
			else
			{
				args.IsValid=true;
			}
			cn.Close();
		}

		private void Cv_customer_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
			cn.Open();
			SqlCommand cm=new SqlCommand("select * from customer where Custom_id=@Custom_id",cn);
			cm.Parameters.Add("@Custom_id",SqlDbType.Char,10);
			cm.Parameters["@Custom_id"].Value=Ddl_customer.SelectedItem.Value;
			SqlDataReader dr=cm.ExecuteReader();
			if(dr.Read())
			{
				args.IsValid=true;
			}
			else
			{
				args.IsValid=false;
			}
			cn.Close();
		}

		private void Tbx_count1_TextChanged(object sender, System.EventArgs e)
		{
		
		}
	}
}