courseelect2.cs

数据库的课程设计作业。管理有关学生、课程的基本信息

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;

namespace 教务管理系统1
{
	/// <summary>
	/// CourseElect2 的摘要说明。
	/// </summary>
	public class CourseElect2 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.DataGrid dataGrid1;
		private System.Windows.Forms.Button button1;
		private System.Data.SqlClient.SqlConnection sqlConnection1;
		private System.Data.SqlClient.SqlDataAdapter da1;
		private 教务管理系统1.DataSet1 dataSet11;
		private System.Windows.Forms.TextBox txt1;
		private System.Data.SqlClient.SqlCommand sqlSelectCommand1;
		private System.Data.SqlClient.SqlCommand sqlInsertCommand1;
		private System.Windows.Forms.DateTimePicker dateTimePicker1;
		private System.Windows.Forms.DateTimePicker dateTimePicker2;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.DataGrid dataGrid2;
		private System.Data.SqlClient.SqlDataAdapter da2;
		private System.Data.SqlClient.SqlCommand sqlSelectCommand2;
		private System.Data.SqlClient.SqlCommand sqlInsertCommand2;
		private System.Data.SqlClient.SqlCommand sqlUpdateCommand1;
		private System.Data.SqlClient.SqlCommand sqlDeleteCommand1;
		private 教务管理系统1.DataSet8 dataSet81;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox txt2;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;
	    public CourseElect2()
		{
			//
			// 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.groupBox1 = new System.Windows.Forms.GroupBox();
			this.dateTimePicker2 = new System.Windows.Forms.DateTimePicker();
			this.dateTimePicker1 = new System.Windows.Forms.DateTimePicker();
			this.label4 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.txt1 = new System.Windows.Forms.TextBox();
			this.label2 = new System.Windows.Forms.Label();
			this.dataGrid1 = new System.Windows.Forms.DataGrid();
			this.dataSet11 = new 教务管理系统1.DataSet1();
			this.da1 = new System.Data.SqlClient.SqlDataAdapter();
			this.sqlInsertCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
			this.sqlSelectCommand1 = new System.Data.SqlClient.SqlCommand();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.dataGrid2 = new System.Windows.Forms.DataGrid();
			this.dataSet81 = new 教务管理系统1.DataSet8();
			this.da2 = new System.Data.SqlClient.SqlDataAdapter();
			this.sqlDeleteCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlInsertCommand2 = new System.Data.SqlClient.SqlCommand();
			this.sqlSelectCommand2 = new System.Data.SqlClient.SqlCommand();
			this.sqlUpdateCommand1 = new System.Data.SqlClient.SqlCommand();
			this.label1 = new System.Windows.Forms.Label();
			this.txt2 = new System.Windows.Forms.TextBox();
			this.groupBox1.SuspendLayout();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataSet11)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid2)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataSet81)).BeginInit();
			this.SuspendLayout();
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.Add(this.txt2);
			this.groupBox1.Controls.Add(this.label1);
			this.groupBox1.Controls.Add(this.dateTimePicker2);
			this.groupBox1.Controls.Add(this.dateTimePicker1);
			this.groupBox1.Controls.Add(this.label4);
			this.groupBox1.Controls.Add(this.label3);
			this.groupBox1.Controls.Add(this.txt1);
			this.groupBox1.Controls.Add(this.label2);
			this.groupBox1.Location = new System.Drawing.Point(16, 264);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(232, 152);
			this.groupBox1.TabIndex = 0;
			this.groupBox1.TabStop = false;
			// 
			// dateTimePicker2
			// 
			this.dateTimePicker2.Location = new System.Drawing.Point(104, 120);
			this.dateTimePicker2.Name = "dateTimePicker2";
			this.dateTimePicker2.Size = new System.Drawing.Size(112, 21);
			this.dateTimePicker2.TabIndex = 9;
			// 
			// dateTimePicker1
			// 
			this.dateTimePicker1.Location = new System.Drawing.Point(104, 88);
			this.dateTimePicker1.Name = "dateTimePicker1";
			this.dateTimePicker1.Size = new System.Drawing.Size(112, 21);
			this.dateTimePicker1.TabIndex = 8;
			// 
			// label4
			// 
			this.label4.Location = new System.Drawing.Point(8, 120);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(80, 23);
			this.label4.TabIndex = 7;
			this.label4.Text = "上课结束日期";
			this.label4.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(8, 88);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(80, 23);
			this.label3.TabIndex = 6;
			this.label3.Text = "上课起始日期";
			this.label3.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// txt1
			// 
			this.txt1.Location = new System.Drawing.Point(104, 16);
			this.txt1.Name = "txt1";
			this.txt1.TabIndex = 1;
			this.txt1.Text = "";
			this.txt1.TextChanged += new System.EventHandler(this.txt2_TextChanged);
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(16, 16);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(56, 23);
			this.label2.TabIndex = 5;
			this.label2.Text = "班级名称";
			this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			this.label2.Click += new System.EventHandler(this.label2_Click);
			// 
			// dataGrid1
			// 
			this.dataGrid1.CaptionVisible = false;
			this.dataGrid1.DataMember = "";
			this.dataGrid1.DataSource = this.dataSet11.选课表;
			this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dataGrid1.Location = new System.Drawing.Point(16, 56);
			this.dataGrid1.Name = "dataGrid1";
			this.dataGrid1.Size = new System.Drawing.Size(536, 208);
			this.dataGrid1.TabIndex = 1;
			// 
			// dataSet11
			// 
			this.dataSet11.DataSetName = "DataSet1";
			this.dataSet11.Locale = new System.Globalization.CultureInfo("zh-CN");
			// 
			// da1
			// 
			this.da1.InsertCommand = this.sqlInsertCommand1;
			this.da1.SelectCommand = this.sqlSelectCommand1;
			this.da1.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] {
																						  new System.Data.Common.DataTableMapping("Table", "选课表", new System.Data.Common.DataColumnMapping[] {
																																																 new System.Data.Common.DataColumnMapping("学号", "学号"),
																																																 new System.Data.Common.DataColumnMapping("课程号", "课程号"),
																																																 new System.Data.Common.DataColumnMapping("成绩", "成绩"),
																																																 new System.Data.Common.DataColumnMapping("上课起始日期", "上课起始日期"),
																																																 new System.Data.Common.DataColumnMapping("上课结束日期", "上课结束日期")})});
			// 
			// sqlInsertCommand1
			// 
			this.sqlInsertCommand1.CommandText = "INSERT INTO 选课表(学号, 课程号, 成绩, 上课起始日期, 上课结束日期) VALUES (@学号, @课程号, @成绩, @上课起始日期, @上课" +
				"结束日期); SELECT 学号, 课程号, 成绩, 上课起始日期, 上课结束日期 FROM 选课表";
			this.sqlInsertCommand1.Connection = this.sqlConnection1;
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@学号", System.Data.SqlDbType.VarChar, 8, "学号"));
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@课程号", System.Data.SqlDbType.VarChar, 8, "课程号"));