form1.cs

原代码详细说明是关于c++方面的希望可以帮助大家使用

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
namespace Exam6_7
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.DataGrid dataGrid1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// 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.textBox1 = new System.Windows.Forms.TextBox();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.dataGrid1 = new System.Windows.Forms.DataGrid();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			this.SuspendLayout();
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(47, 15);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(53, 21);
			this.textBox1.TabIndex = 0;
			this.textBox1.Text = "";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(47, 46);
			this.textBox2.Name = "textBox2";
			this.textBox2.Size = new System.Drawing.Size(79, 21);
			this.textBox2.TabIndex = 1;
			this.textBox2.Text = "";
			// 
			// dataGrid1
			// 
			this.dataGrid1.CaptionVisible = false;
			this.dataGrid1.DataMember = "";
			this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dataGrid1.Location = new System.Drawing.Point(6, 82);
			this.dataGrid1.Name = "dataGrid1";
			this.dataGrid1.RowHeadersVisible = false;
			this.dataGrid1.Size = new System.Drawing.Size(229, 121);
			this.dataGrid1.TabIndex = 2;
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(146, 13);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(55, 24);
			this.button1.TabIndex = 3;
			this.button1.Text = "上一页";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(146, 43);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(55, 24);
			this.button2.TabIndex = 4;
			this.button2.Text = "下一页";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(9, 19);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(34, 19);
			this.label1.TabIndex = 5;
			this.label1.Text = "学号";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(9, 51);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(32, 29);
			this.label2.TabIndex = 6;
			this.label2.Text = "姓名";
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(241, 211);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.dataGrid1);
			this.Controls.Add(this.textBox2);
			this.Controls.Add(this.textBox1);
			this.Name = "Form1";
			this.Text = "学生成绩浏览";
			this.Load += new System.EventHandler(this.Form1_Load);
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}
        DataSet ds,ds1;
		DataRelation studentScoreRel;
		SqlDataAdapter sqlDataAdapter;
		private void Form1_Load(object sender, System.EventArgs e)
		{
			SqlConnection myConnection = new SqlConnection();
			myConnection.ConnectionString = "server=localhost;uid=sa;pwd=;database=xsgl";
			sqlDataAdapter=new SqlDataAdapter("SELECT studID,studName  FROM student",myConnection);
 			ds=new DataSet();
			
			sqlDataAdapter.Fill(ds,"student");
			sqlDataAdapter=new SqlDataAdapter("SELECT *  FROM score",myConnection);
 			sqlDataAdapter.Fill(ds,"score");
			
			studentScoreRel = ds.Relations.Add("StudentScore",
			        ds.Tables["student"].Columns["studID"],
			        ds.Tables["score"].Columns["studID"]);
			
            textBox1.DataBindings.Add(new Binding("Text",ds, "student.studID"));
			textBox2.DataBindings.Add(new Binding("Text",ds, "student.studName"));
			this.BindingContext[ds, "student"].PositionChanged +=new EventHandler(BindingManagerBase_PositionChanged);		
			
			ds1=new DataSet();
			ds1.Tables.Add(ds.Tables["score"].Clone());
			dataGrid1.DataSource=ds1;
			dataGrid1.DataMember="score";
			showScore();
		}
		private void BindingManagerBase_PositionChanged(object sender, EventArgs e)
		{
		   showScore();
		}
        private void showScore()
		{
			ds1.Tables["score"].Rows.Clear();
			DataRow dr=ds.Tables["student"].Rows[this.BindingContext[ds, "student"].Position];
			foreach (DataRow dr1 in dr.GetChildRows(studentScoreRel))
			{
				DataRow myDR=ds1.Tables["score"].NewRow();
				myDR["studID"]=dr1["studID"];
				myDR["courseID"]=dr1["courseID"];
				myDR["score"]=dr1["score"];
				ds1.Tables["score"].Rows.Add(myDR);
			}
		}
		private void button1_Click(object sender, System.EventArgs e)
		{
		    this.BindingContext[ds, "student"].Position-=1;
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			this.BindingContext[ds, "student"].Position+=1;
		}
	}
}