chenjixiugai.cs

StudentScoreMag2qwuahgoaaodfoaghojafo

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Runtime.Serialization;//序列化用
using System.Runtime.Serialization.Formatters.Binary;//序列化
using   System.IO; //写文件用


namespace WindowsApplication1
{
	/// <summary>
	/// Chenjixiugai 的摘要说明。
	/// </summary>
	public class Chenjixiugai : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.TextBox textBox3;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button3;
		public Subject[]  stu=new Subject[10];
		public int k,j,i,n=0;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Chenjixiugai()
		{
			//
			// 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()
		{
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.textBox3 = new System.Windows.Forms.TextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.button3 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(8, 8);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(64, 24);
			this.label1.TabIndex = 0;
			this.label1.Text = "学号：";
			this.label1.Click += new System.EventHandler(this.label1_Click);
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(8, 48);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(64, 24);
			this.label2.TabIndex = 1;
			this.label2.Text = "课程名：";
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(8, 88);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(64, 16);
			this.label3.TabIndex = 2;
			this.label3.Text = "成绩：";
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(80, 8);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(120, 21);
			this.textBox1.TabIndex = 3;
			this.textBox1.Text = "textBox1";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(80, 40);
			this.textBox2.Name = "textBox2";
			this.textBox2.Size = new System.Drawing.Size(120, 21);
			this.textBox2.TabIndex = 4;
			this.textBox2.Text = "textBox2";
			// 
			// textBox3
			// 
			this.textBox3.Location = new System.Drawing.Point(80, 80);
			this.textBox3.Name = "textBox3";
			this.textBox3.Size = new System.Drawing.Size(120, 21);
			this.textBox3.TabIndex = 5;
			this.textBox3.Text = "textBox3";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(64, 128);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(144, 40);
			this.button1.TabIndex = 6;
			this.button1.Text = "请输入你要修改的学号";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(40, 200);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(64, 32);
			this.button2.TabIndex = 7;
			this.button2.Text = "修改";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// button3
			// 
			this.button3.Location = new System.Drawing.Point(200, 200);
			this.button3.Name = "button3";
			this.button3.Size = new System.Drawing.Size(48, 32);
			this.button3.TabIndex = 8;
			this.button3.Text = "退出";
			this.button3.Click += new System.EventHandler(this.button3_Click);
			// 
			// Chenjixiugai
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.BackColor = System.Drawing.SystemColors.Info;
			this.ClientSize = new System.Drawing.Size(292, 273);
			this.Controls.Add(this.button3);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.textBox3);
			this.Controls.Add(this.textBox2);
			this.Controls.Add(this.textBox1);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.Name = "Chenjixiugai";
			this.Text = "成绩修改";
			this.Load += new System.EventHandler(this.Chenjixiugai_Load);
			this.ResumeLayout(false);

		}
		#endregion

		private void label1_Click(object sender, System.EventArgs e)
		{
		
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
				
			stu[i].xh=textBox1.Text;
			
			stu[i].kch1=textBox2.Text ;
			stu[i].chj=textBox3.Text;
			string Filename=System.IO .Directory.GetCurrentDirectory ();//获取应用程序的当前工作目录;	
			Filename+="\\data\\studentchengji_data.bin";//设置路径文件为应用程序的当前工作目录(即bin\debug\)下的DATA目录下的student_data.bin;
			BinaryFormatter  formatter = new BinaryFormatter();
			Stream stream = new FileStream(Filename, FileMode.Create, FileAccess.Write, FileShare.None);
			formatter.Serialize(stream, n );
			for(i=0;i<n;i++)
				formatter.Serialize (stream,stu[i]);
			stream.Close();
			MessageBox.Show ("恭喜已经保存了！");
		}

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

		private void button3_Click(object sender, System.EventArgs e)
		{
			this.Close();
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			string Filename=System.IO .Directory.GetCurrentDirectory ();//获取应用程序的当前工作目录;	
			Filename+="\\data\\studentchengji_data.bin";//设置路径文件为应用程序的当前工作目录(即bin\debug\)下的DATA目录下的student_data.bin;
			
			IFormatter formatter = new BinaryFormatter();
			Stream stream=File.OpenRead (Filename);//打开文件
			n=(int)formatter.Deserialize(stream);
			stu=new Subject [n];
			for( i=0; i<stu.Length ;i++)
			{
				stu[i]=(Subject)formatter.Deserialize (stream);
			}
			
			i=0;		
			stream.Close();
			button1.Enabled=true;
			for( j=0;j<n;j++)
			{
				if(stu[j].xh==textBox1.Text)
				{
					k=j;
					textBox1.Text=stu[k].xh;
			
					textBox2.Text =stu[k].kch1;
					textBox3.Text =stu[k].chj;
					break;
				}
			}
			if(j==n)
				MessageBox.Show ("对不起！该学号不存在。");
		}
	}
}