教育系统应用

开发平台：
C#

Form_Customer_LookOverOrders.cs：源码内容
							using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
namespace 图书管理系统
{
	/// <summary>
	/// Form_Customer_LookOverOrders 的摘要说明。
	/// </summary>
	public class Form_Customer_LookOverOrders : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Button butExit;
		private System.Windows.Forms.TextBox orderID;
		private System.Windows.Forms.Button butUpdate;
		private System.Windows.Forms.Button butCommit;
		private System.Windows.Forms.Button butLast;
		private System.Windows.Forms.Button butFirst;
		private System.Windows.Forms.Button butNext;
		private System.Windows.Forms.Button butPrev;
		private System.Windows.Forms.TextBox orderquantity;
		private System.Windows.Forms.TextBox orderprice;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Label label6;
		private System.Windows.Forms.RadioButton radioButton1;
		private System.Windows.Forms.RadioButton radioButton2;
		private System.Windows.Forms.TextBox customerID;
		private System.Windows.Forms.TextBox bookISBN;
		private System.Windows.Forms.Label label3;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;
		public Form_Customer_LookOverOrders()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();
			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}
		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}
		#region Windows 窗体设计器生成的代码
		/// <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()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form_Customer_LookOverOrders));
			this.butExit = new System.Windows.Forms.Button();
			this.customerID = new System.Windows.Forms.TextBox();
			this.orderID = new System.Windows.Forms.TextBox();
			this.butUpdate = new System.Windows.Forms.Button();
			this.butCommit = new System.Windows.Forms.Button();
			this.label2 = new System.Windows.Forms.Label();
			this.label1 = new System.Windows.Forms.Label();
			this.butLast = new System.Windows.Forms.Button();
			this.butFirst = new System.Windows.Forms.Button();
			this.butNext = new System.Windows.Forms.Button();
			this.butPrev = new System.Windows.Forms.Button();
			this.orderquantity = new System.Windows.Forms.TextBox();
			this.orderprice = new System.Windows.Forms.TextBox();
			this.label5 = new System.Windows.Forms.Label();
			this.label6 = new System.Windows.Forms.Label();
			this.radioButton1 = new System.Windows.Forms.RadioButton();
			this.radioButton2 = new System.Windows.Forms.RadioButton();
			this.bookISBN = new System.Windows.Forms.TextBox();
			this.label3 = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// butExit
			// 
			this.butExit.BackColor = System.Drawing.Color.Transparent;
			this.butExit.Location = new System.Drawing.Point(212, 304);
			this.butExit.Name = "butExit";
			this.butExit.Size = new System.Drawing.Size(64, 24);
			this.butExit.TabIndex = 25;
			this.butExit.Text = "退出";
			this.butExit.Click += new System.EventHandler(this.butExit_Click);
			// 
			// customerID
			// 
			this.customerID.Location = new System.Drawing.Point(120, 27);
			this.customerID.Name = "customerID";
			this.customerID.ReadOnly = true;
			this.customerID.Size = new System.Drawing.Size(208, 21);
			this.customerID.TabIndex = 21;
			this.customerID.Text = "customerID";
			// 
			// orderID
			// 
			this.orderID.Location = new System.Drawing.Point(120, 67);
			this.orderID.Name = "orderID";
			this.orderID.ReadOnly = true;
			this.orderID.Size = new System.Drawing.Size(208, 21);
			this.orderID.TabIndex = 20;
			this.orderID.Text = "orderID";
			// 
			// butUpdate
			// 
			this.butUpdate.BackColor = System.Drawing.Color.Transparent;
			this.butUpdate.Location = new System.Drawing.Point(44, 232);
			this.butUpdate.Name = "butUpdate";
			this.butUpdate.Size = new System.Drawing.Size(56, 24);
			this.butUpdate.TabIndex = 17;
			this.butUpdate.Text = "修改";
			this.butUpdate.Click += new System.EventHandler(this.butUpdate_Click);
			// 
			// butCommit
			// 
			this.butCommit.BackColor = System.Drawing.Color.Transparent;
			this.butCommit.Location = new System.Drawing.Point(92, 304);
			this.butCommit.Name = "butCommit";
			this.butCommit.Size = new System.Drawing.Size(64, 24);
			this.butCommit.TabIndex = 16;
			this.butCommit.Text = "满足订单";
			this.butCommit.Click += new System.EventHandler(this.butCommit_Click);
			// 
			// label2
			// 
			this.label2.BackColor = System.Drawing.Color.Transparent;
			this.label2.Location = new System.Drawing.Point(40, 27);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(56, 16);
			this.label2.TabIndex = 14;
			this.label2.Text = "客户ID";
			// 
			// label1
			// 
			this.label1.BackColor = System.Drawing.Color.Transparent;
			this.label1.Location = new System.Drawing.Point(40, 67);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(56, 16);
			this.label1.TabIndex = 13;
			this.label1.Text = "订单号";
			// 
			// butLast
			// 
			this.butLast.BackColor = System.Drawing.Color.Transparent;
			this.butLast.Location = new System.Drawing.Point(268, 232);
			this.butLast.Name = "butLast";
			this.butLast.Size = new System.Drawing.Size(56, 24);
			this.butLast.TabIndex = 29;
			this.butLast.Text = ">|";
			this.butLast.Click += new System.EventHandler(this.butLast_Click);
			// 
			// butFirst
			// 
			this.butFirst.BackColor = System.Drawing.Color.Transparent;
			this.butFirst.Location = new System.Drawing.Point(100, 232);
			this.butFirst.Name = "butFirst";
			this.butFirst.Size = new System.Drawing.Size(56, 24);
			this.butFirst.TabIndex = 28;
			this.butFirst.Text = "|<";
			this.butFirst.Click += new System.EventHandler(this.butFirst_Click);
			// 
			// butNext
			// 
			this.butNext.BackColor = System.Drawing.Color.Transparent;
			this.butNext.Location = new System.Drawing.Point(212, 232);
			this.butNext.Name = "butNext";
			this.butNext.Size = new System.Drawing.Size(56, 24);
			this.butNext.TabIndex = 27;
			this.butNext.Text = ">";
			this.butNext.Click += new System.EventHandler(this.butNext_Click);
			// 
			// butPrev
			// 
			this.butPrev.BackColor = System.Drawing.Color.Transparent;
			this.butPrev.Location = new System.Drawing.Point(156, 232);
			this.butPrev.Name = "butPrev";
			this.butPrev.Size = new System.Drawing.Size(56, 24);
			this.butPrev.TabIndex = 26;
			this.butPrev.Text = "<";
			this.butPrev.Click += new System.EventHandler(this.butPrev_Click);
			// 
			// orderquantity
			// 
			this.orderquantity.Location = new System.Drawing.Point(120, 184);
			this.orderquantity.Name = "orderquantity";
			this.orderquantity.ReadOnly = true;
			this.orderquantity.Size = new System.Drawing.Size(208, 21);
			this.orderquantity.TabIndex = 33;
			this.orderquantity.Text = "orderquantity";
			// 
			// orderprice
			// 
			this.orderprice.Location = new System.Drawing.Point(120, 144);
			this.orderprice.Name = "orderprice";
			this.orderprice.ReadOnly = true;
			this.orderprice.Size = new System.Drawing.Size(208, 21);
			this.orderprice.TabIndex = 31;
			this.orderprice.Text = "orderprice";
			// 
			// label5
			// 
			this.label5.BackColor = System.Drawing.Color.Transparent;
			this.label5.Location = new System.Drawing.Point(40, 184);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(56, 16);
			this.label5.TabIndex = 32;
			this.label5.Text = "订购数量";
			// 
			// label6
			// 
			this.label6.BackColor = System.Drawing.Color.Transparent;
			this.label6.Location = new System.Drawing.Point(40, 144);
			this.label6.Name = "label6";
			this.label6.Size = new System.Drawing.Size(56, 16);
			this.label6.TabIndex = 30;
			this.label6.Text = "订购价格";
			// 
			// radioButton1
			// 
			this.radioButton1.BackColor = System.Drawing.Color.Transparent;
			this.radioButton1.Location = new System.Drawing.Point(184, 272);
			this.radioButton1.Name = "radioButton1";
			this.radioButton1.Size = new System.Drawing.Size(136, 24);
			this.radioButton1.TabIndex = 34;
			this.radioButton1.Text = "查看已完成的订单";
			this.radioButton1.Click += new System.EventHandler(this.radioButton1_Click);
			// 
			// radioButton2
			// 
			this.radioButton2.BackColor = System.Drawing.Color.Transparent;
			this.radioButton2.Checked = true;
			this.radioButton2.Location = new System.Drawing.Point(48, 272);
			this.radioButton2.Name = "radioButton2";
			this.radioButton2.Size = new System.Drawing.Size(136, 24);
			this.radioButton2.TabIndex = 35;
			this.radioButton2.TabStop = true;
			this.radioButton2.Text = "查看未完成的订单";
			this.radioButton2.Click += new System.EventHandler(this.radioButton2_Click);
			// 
			// bookISBN
			// 
			this.bookISBN.Location = new System.Drawing.Point(121, 104);
			this.bookISBN.Name = "bookISBN";
			this.bookISBN.ReadOnly = true;
			this.bookISBN.Size = new System.Drawing.Size(208, 21);
			this.bookISBN.TabIndex = 37;
			this.bookISBN.Text = "bookSBN";
			// 
			// label3
			// 
			this.label3.BackColor = System.Drawing.Color.Transparent;
			this.label3.Location = new System.Drawing.Point(41, 104);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(56, 16);
			this.label3.TabIndex = 36;
			this.label3.Text = "图书ISBN";
			// 
			// Form_Customer_LookOverOrders
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage")));
			this.ClientSize = new System.Drawing.Size(370, 336);
			this.Controls.Add(this.bookISBN);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.radioButton2);
			this.Controls.Add(this.radioButton1);
			this.Controls.Add(this.orderquantity);
			this.Controls.Add(this.orderprice);
			this.Controls.Add(this.customerID);
			this.Controls.Add(this.orderID);
			this.Controls.Add(this.label5);
			this.Controls.Add(this.label6);
			this.Controls.Add(this.butLast);
			this.Controls.Add(this.butFirst);
			this.Controls.Add(this.butNext);
			this.Controls.Add(this.butPrev);
			this.Controls.Add(this.butExit);
			this.Controls.Add(this.butUpdate);
			this.Controls.Add(this.butCommit);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
			this.Name = "Form_Customer_LookOverOrders";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "查看订单";
			this.Load += new System.EventHandler(this.Form_Customer_LookOverOrders_Load);
			this.ResumeLayout(false);
		}
		#endregion
		SQL sql;
		string oldorderID="";
		public void show()
		{
			if(sql.rows.GetLength(0)!=0)
			{
				orderID.Text=sql.rows[sql.getPos(),0].ToString();
				bookISBN.Text=sql.rows[sql.getPos(),2].ToString();
				orderprice.Text=sql.rows[sql.getPos(),4].ToString();
				orderquantity.Text=sql.rows[sql.getPos(),5].ToString();
			}
			else
			{
				orderID.Text="";
				bookISBN.Text="";
				orderprice.Text="";
				orderquantity.Text="";
				MessageBox.Show("无符合查询条件的结果!","提示");
			}
		}
		private void Form_Customer_LookOverOrders_Load(object sender, System.EventArgs e)
		{
			customerID.Text=Form_Customer.CUSTOMERID;
			sql=new SQL("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=图书管理系统数据库.mdb");
			sql.ExecuteSQL("select * from 客户订单信息表 where customerID='"+customerID.Text+"' and orderstatus='0' order by orderID");
			show();
		}
		private void butFirst_Click(object sender, System.EventArgs e)
		{
			sql.pointToFirst();
			show();
		}
		private void butPrev_Click(object sender, System.EventArgs e)
		{
			sql.pointToPrev();
			show();
		}
		private void butNext_Click(object sender, System.EventArgs e)
		{
			sql.pointToNext();
			show();
		}
		private void butLast_Click(object sender, System.EventArgs e)
		{
			sql.pointToLast();
		}
		private void butUpdate_Click(object sender, System.EventArgs e)
		{
			if(butUpdate.Text=="修改")
			{
				butUpdate.Text="更新";
				oldorderID=orderID.Text;
				orderID.ReadOnly=false;
				orderprice.ReadOnly=false;
				orderquantity.ReadOnly=false;
				butFirst.Enabled=false;
				butPrev.Enabled=false;
				butNext.Enabled=false;
				butLast.Enabled=false;
				butCommit.Enabled=false;
				butExit.Enabled=false;
			}
			else
			{
				if(sql.ExecuteSQL("update 客户订单信息表 set orderID='"+orderID.Text+"',orderprice='"
					+orderprice.Text+"',orderquantity='"+orderquantity.Text+"' where customerID='"+customerID.Text
					+"'and orderID='"+oldorderID+"'")
					==false)
				{
					show();
				}
				orderID.ReadOnly=true;
				orderprice.ReadOnly=true;
				orderquantity.ReadOnly=true;
				butUpdate.Text="修改";
				butFirst.Enabled=true;
				butPrev.Enabled=true;
				butNext.Enabled=true;
				butLast.Enabled=true;
				butCommit.Enabled=true;
				butExit.Enabled=true;
			}
		}
		private void butCommit_Click(object sender, System.EventArgs e)
		{
			if(orderID.Text!="")
			{
				if(
					sql.ExecuteSQL("update 库存信息表 set bookquantity=bookquantity-"+orderquantity.Text+" where bookISBN='"+bookISBN.Text+"'")
					==true)
				{
					if(
						sql.ExecuteSQL("update 客户订单信息表 set orderstatus='1' where customerID='"+customerID.Text
						+"'and orderID='"+orderID.Text+"'")
						==true)
					{
						MessageBox.Show("订单已满足!","提示");
					}
				}
				show();
			}
			else
			{
				MessageBox.Show("还没有选择订单!","提示");
			}
		}
		private void butExit_Click(object sender, System.EventArgs e)
		{
			this.Close();
		}
		private void radioButton2_Click(object sender, System.EventArgs e)
		{
			butCommit.Enabled=true;
			sql.ExecuteSQL("select * from 客户订单信息表 where customerID='"+customerID.Text+"' and orderstatus='0' order by orderID");
			show();
		}
		private void radioButton1_Click(object sender, System.EventArgs e)
		{
			butCommit.Enabled=false;
			sql.ExecuteSQL("select * from 客户订单信息表 where customerID='"+customerID.Text+"' and orderstatus='1' order by orderID");
			show();
		}
	}
}

						