updatecontract.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>
	/// updatecontract 的摘要说明。
	/// </summary>
	public class updatecontract : System.Web.UI.Page
	{
		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.CustomValidator Cv_customer;
		protected System.Web.UI.WebControls.Button Btn_update;
		protected System.Web.UI.WebControls.Button Btn_back;
		protected System.Web.UI.WebControls.TextBox Tbx_allmon;
		protected System.Web.UI.WebControls.Label Lbl_note;
		protected System.Web.UI.WebControls.Label Lbl_contractid;
		protected System.Web.UI.WebControls.DropDownList Ddl_customer;
		protected System.Web.UI.WebControls.DropDownList Ddl_product;
	SqlConnection cn;
		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);
			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
			 strconn= ConfigurationSettings.AppSettings["dsn"];
			cn=new SqlConnection(strconn);
			if(!IsPostBack)
				display();
		}

		#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_customer.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.Cv_customer_ServerValidate);
			this.Btn_update.Click += new System.EventHandler(this.Btn_update_Click);
			this.Btn_back.Click += new System.EventHandler(this.Btn_back_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
		public void display()
		{
		 string strsql="select * from contract,contract_detail where contract.Contract_id=@Contract_id and contract.Contract_id=contract_detail.Contract_id";
		 SqlCommand cm=new SqlCommand(strsql,cn);
			cm.Parameters.Add(new SqlParameter("@Contract_id",SqlDbType.Char,10));
			cm.Parameters["@Contract_id"].Value=Request.QueryString["Contract_id"];
		cn.Open();
		SqlDataReader dr=cm.ExecuteReader();
			if(dr.Read())
			{
				Lbl_contractid.Text=Request.QueryString["Contract_id"];
				Ddl_customer.SelectedItem.Value=dr["Custom_id"].ToString();
				Ddl_customer.Items.FindByValue(dr["Custom_id"].ToString()).Selected=true;
				Ddl_product.SelectedItem.Value=dr["Product_id"].ToString();
				Ddl_product.Items.FindByValue(dr["Product_id"].ToString()).Selected=true;
				Ddl_state.SelectedItem.Value=dr["Contract_state"].ToString();
				Ddl_state.Items.FindByValue(dr["Contract_state"].ToString()).Selected =true;
				Tbx_date1.Text=dr["Contract_start"].ToString();
				Tbx_date3.Text=dr["Contract_send"].ToString();
				Tbx_date2.Text=dr["Contract_finish"].ToString();
				Tbx_person.Text=dr["Contract_person"].ToString();
				Tbx_allmon.Text=dr["Contract_price"].ToString();
				Tbx_count1.Text=dr["Product_book"].ToString();
				Tbx_count2.Text=dr["Product_send"].ToString();
				Tbx_price.Text=dr["Product_price"].ToString();
			}
			else
			{
					Lbl_contractid.Text="error!";
			}
			cn.Close();
	}
		private void Btn_update_Click(object sender, System.EventArgs e)
		{
		if(Page.IsValid)
		 {
			 cn.Open();
			 SqlCommand cm=new SqlCommand("update_contract_1",cn);
			 cm.CommandType=CommandType.StoredProcedure;
			try
			{
				cm.Parameters.Add(new SqlParameter("@Contract_id",SqlDbType.Char,10));
				cm.Parameters.Add(new SqlParameter("@Custom_id",SqlDbType.Char,10));
				cm.Parameters.Add(new SqlParameter("@Contract_state",SqlDbType.Int,4));
				cm.Parameters.Add(new SqlParameter("@Contract_start",SqlDbType.VarChar,50));
				cm.Parameters.Add(new SqlParameter("@Contract_send",SqlDbType.DateTime,8));
				cm.Parameters.Add(new SqlParameter("@Contract_finish",SqlDbType.DateTime,8));
				cm.Parameters.Add(new SqlParameter("@Contract_person",SqlDbType.Char,10));
				cm.Parameters.Add(new SqlParameter("@Contract_price",SqlDbType.Money,8));
				cm.Parameters["@Contract_id"].Value=Request.QueryString["Contract_id"];
				cm.Parameters["@Custom_id"].Value=Ddl_customer.SelectedItem.Value;
				cm.Parameters["@Contract_state"].Value=Ddl_state.SelectedItem.Value;
				cm.Parameters["@Contract_start"].Value=Tbx_date1.Text;
				cm.Parameters["@Contract_send"].Value=Tbx_date3.Text;
				cm.Parameters["@Contract_finish"].Value=Tbx_date2.Text;
				cm.Parameters["@Contract_person"].Value=Tbx_person.Text;
				cm.Parameters["@Contract_price"].Value=Tbx_allmon.Text;			 
				cm.ExecuteNonQuery();
				Lbl_note.Text="修改成功";
			 }
			 catch
			 {
				 Lbl_note.Text="修改失败";
				 Lbl_note.Style["color"]="red";
			 }
			 SqlCommand cm1=new SqlCommand("update_contract_detail_1",cn);
			 cm1.CommandType=CommandType.StoredProcedure;
			try
			{
				cm1.Parameters.Add(new SqlParameter("@Contract_id",SqlDbType.Char,10));
				cm1.Parameters.Add(new SqlParameter("@Product_id",SqlDbType.Char,10));
				cm1.Parameters.Add(new SqlParameter("@Product_book",SqlDbType.Int,4));
				cm1.Parameters.Add(new SqlParameter("@Product_send",SqlDbType.Int,4));
				cm1.Parameters.Add(new SqlParameter("@Product_price",SqlDbType.Money,8));
				cm1.Parameters["@Contract_id"].Value=Request.QueryString["Contract_id"];
				cm1.Parameters["@Product_id"].Value=Ddl_product.SelectedItem.Value;
				cm1.Parameters["@Product_book"].Value=Tbx_count1.Text;
				cm1.Parameters["@Product_send"].Value=Tbx_count2.Text;
				cm1.Parameters["@Product_price"].Value=Tbx_price.Text;			
				cm1.ExecuteNonQuery();
				Lbl_note.Text="修改成功";
			 }
			 catch
			 {
				 Lbl_note.Text="修改失败";
				 Lbl_note.Style["color"]="red";
			 }
			 cn.Close();		
		 }
		}

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

		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();
		}

	}
}