courseelect1.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>
	/// CourseElect1 的摘要说明。
	/// </summary>
	public class CourseElect1 : System.Windows.Forms.Form
	{
		private string student_ID;
		private System.Windows.Forms.DataGrid dataGrid1;
		private System.Windows.Forms.ToolBar toolBar1;
		private System.Windows.Forms.ToolBarButton toolBarButton2;
		private System.Windows.Forms.ToolBarButton toolBarButton3;
		private System.Windows.Forms.ToolBarButton toolBarButton4;
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Label label6;
		private System.Data.SqlClient.SqlConnection sqlConnection1;
		private 教务管理系统1.DataSet1 dataSet11;
		private System.Windows.Forms.ToolBarButton toolBarButton5;
		private System.Windows.Forms.ToolBarButton toolBarButton6;
		private System.Data.SqlClient.SqlDataAdapter da1;
        /// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;
		private System.Windows.Forms.DateTimePicker dateTimePicker1;
		private System.Windows.Forms.DateTimePicker dateTimePicker2;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.ComboBox cmb1;
		private System.Windows.Forms.ComboBox cmb2;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.TextBox txt1;
		private System.Windows.Forms.TextBox txt2;
		private System.Data.SqlClient.SqlCommand sqlSelectCommand1;
		private System.Data.SqlClient.SqlCommand sqlInsertCommand1;
		private System.Data.SqlClient.SqlCommand sqlUpdateCommand1;
		private System.Data.SqlClient.SqlCommand sqlDeleteCommand1;
		private System.Windows.Forms.DataGrid dataGrid2;
		private System.Data.SqlClient.SqlConnection sqlConnection2;
		private System.Windows.Forms.Button btnElect;
		private System.Windows.Forms.Button btnSearch;
		private System.Data.SqlClient.SqlDataAdapter da2;
		private 教务管理系统1.DataSet7 dataSet71;
		private System.Data.SqlClient.SqlCommand sqlSelectCommand2;
		private System.Data.SqlClient.SqlCommand sqlInsertCommand2;
		private System.Data.SqlClient.SqlCommand sqlUpdateCommand2;
		private System.Data.SqlClient.SqlCommand sqlDeleteCommand2;
		private System.Windows.Forms.ToolBarButton toolBarButton1;
		private System.Windows.Forms.ToolBarButton toolBarButton7;
		private System.Windows.Forms.ToolBarButton toolBarButton8;
		private System.Windows.Forms.ToolBarButton toolBarButton9;
        private CurrencyManager cmOrders;

		public CourseElect1()
		{
			//
			// 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.dataGrid1 = new System.Windows.Forms.DataGrid();
			this.dataSet11 = new 教务管理系统1.DataSet1();
			this.toolBar1 = new System.Windows.Forms.ToolBar();
			this.toolBarButton2 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton3 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton4 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton5 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton6 = new System.Windows.Forms.ToolBarButton();
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			this.txt1 = new System.Windows.Forms.TextBox();
			this.txt2 = new System.Windows.Forms.TextBox();
			this.label6 = new System.Windows.Forms.Label();
			this.label5 = new System.Windows.Forms.Label();
			this.button1 = new System.Windows.Forms.Button();
			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.da1 = new System.Data.SqlClient.SqlDataAdapter();
			this.sqlDeleteCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
			this.sqlInsertCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlSelectCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlUpdateCommand1 = new System.Data.SqlClient.SqlCommand();
			this.cmb1 = new System.Windows.Forms.ComboBox();
			this.dataSet71 = new 教务管理系统1.DataSet7();
			this.cmb2 = new System.Windows.Forms.ComboBox();
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.dataGrid2 = new System.Windows.Forms.DataGrid();
			this.sqlConnection2 = new System.Data.SqlClient.SqlConnection();
			this.btnElect = new System.Windows.Forms.Button();
			this.btnSearch = new System.Windows.Forms.Button();
			this.da2 = new System.Data.SqlClient.SqlDataAdapter();
			this.sqlDeleteCommand2 = new System.Data.SqlClient.SqlCommand();
			this.sqlInsertCommand2 = new System.Data.SqlClient.SqlCommand();
			this.sqlSelectCommand2 = new System.Data.SqlClient.SqlCommand();
			this.sqlUpdateCommand2 = new System.Data.SqlClient.SqlCommand();
			this.toolBarButton1 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton7 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton8 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton9 = new System.Windows.Forms.ToolBarButton();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataSet11)).BeginInit();
			this.groupBox1.SuspendLayout();
			((System.ComponentModel.ISupportInitialize)(this.dataSet71)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid2)).BeginInit();
			this.SuspendLayout();
			// 
			// 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(24, 184);
			this.dataGrid1.Name = "dataGrid1";
			this.dataGrid1.ReadOnly = true;
			this.dataGrid1.Size = new System.Drawing.Size(520, 208);
			this.dataGrid1.TabIndex = 2;
			// 
			// dataSet11
			// 
			this.dataSet11.DataSetName = "DataSet1";
			this.dataSet11.Locale = new System.Globalization.CultureInfo("zh-CN");
			// 
			// toolBar1
			// 
			this.toolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] {
																						this.toolBarButton2,
																						this.toolBarButton3,
																						this.toolBarButton4,
																						this.toolBarButton5,
																						this.toolBarButton6,
																						this.toolBarButton1,
																						this.toolBarButton7,
																						this.toolBarButton8,
																						this.toolBarButton9});
			this.toolBar1.ButtonSize = new System.Drawing.Size(60, 50);
			this.toolBar1.DropDownArrows = true;
			this.toolBar1.Location = new System.Drawing.Point(0, 0);
			this.toolBar1.Name = "toolBar1";
			this.toolBar1.ShowToolTips = true;
			this.toolBar1.Size = new System.Drawing.Size(624, 56);
			this.toolBar1.TabIndex = 3;
			this.toolBar1.ButtonClick += new System.Windows.Forms.ToolBarButtonClickEventHandler(this.toolBar1_ButtonClick);
			// 
			// toolBarButton2
			// 
			this.toolBarButton2.Text = "首记录";
			this.toolBarButton2.ToolTipText = "首记录";
			// 
			// toolBarButton3
			// 
			this.toolBarButton3.Text = "上一记录";
			this.toolBarButton3.ToolTipText = "上一记录";
			// 
			// toolBarButton4
			// 
			this.toolBarButton4.Text = "下一记录";
			this.toolBarButton4.ToolTipText = "下一记录";
			// 
			// toolBarButton5
			// 
			this.toolBarButton5.Text = "尾记录";
			this.toolBarButton5.ToolTipText = "尾记录";
			// 
			// toolBarButton6
			// 
			this.toolBarButton6.Text = "修改选课";
			this.toolBarButton6.ToolTipText = "修改选课";
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.Add(this.txt1);
			this.groupBox1.Controls.Add(this.txt2);
			this.groupBox1.Controls.Add(this.label6);
			this.groupBox1.Controls.Add(this.label5);
			this.groupBox1.Controls.Add(this.button1);
			this.groupBox1.Location = new System.Drawing.Point(32, 64);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(512, 104);
			this.groupBox1.TabIndex = 4;
			this.groupBox1.TabStop = false;
			// 
			// txt1
			// 
			this.txt1.Location = new System.Drawing.Point(168, 64);
			this.txt1.Name = "txt1";
			this.txt1.TabIndex = 19;
			this.txt1.Text = "";
			// 
			// txt2
			// 
			this.txt2.Location = new System.Drawing.Point(168, 24);
			this.txt2.Name = "txt2";
			this.txt2.TabIndex = 18;
			this.txt2.Text = "";
			// 
			// label6
			// 
			this.label6.Location = new System.Drawing.Point(80, 64);
			this.label6.Name = "label6";
			this.label6.Size = new System.Drawing.Size(40, 23);
			this.label6.TabIndex = 10;
			this.label6.Text = "学号";
			this.label6.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// label5
			// 
			this.label5.Location = new System.Drawing.Point(80, 24);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(48, 23);
			this.label5.TabIndex = 9;
			this.label5.Text = "课程号";
			this.label5.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(344, 48);
			this.button1.Name = "button1";