form3.cs

《学籍管理系统》 “c# WinForm 数据库操作的简单范例 （SQL Server 2000）”

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

namespace StudentManage
{
	/// <summary>
	/// Form3 的摘要说明。
	/// </summary>
	public class Form3 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button3;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.TextBox textBox3;
		private System.Windows.Forms.TextBox textBox4;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Button button4;
		private System.Data.SqlClient.SqlCommand sqlSelectCommand1;
		private System.Data.SqlClient.SqlCommand sqlInsertCommand1;
		private System.Data.SqlClient.SqlConnection sqlConnection1;
		private System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
		private StudentManage.DataSet4 dataSet41;
		private System.Windows.Forms.Label label6;
		private System.Windows.Forms.ComboBox comboBox1;
		private System.Data.SqlClient.SqlCommand sqlCommand1;
		private System.Data.SqlClient.SqlCommand sqlCommand2;

		private bool check = false;
		private string popedom;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form3()
		{
			//
			// 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.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.button3 = new System.Windows.Forms.Button();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.textBox3 = new System.Windows.Forms.TextBox();
			this.textBox4 = new System.Windows.Forms.TextBox();
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.label4 = new System.Windows.Forms.Label();
			this.label5 = new System.Windows.Forms.Label();
			this.button4 = new System.Windows.Forms.Button();
			this.sqlSelectCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
			this.sqlInsertCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter();
			this.sqlCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlCommand2 = new System.Data.SqlClient.SqlCommand();
			this.dataSet41 = new StudentManage.DataSet4();
			this.label6 = new System.Windows.Forms.Label();
			this.comboBox1 = new System.Windows.Forms.ComboBox();
			((System.ComponentModel.ISupportInitialize)(this.dataSet41)).BeginInit();
			this.SuspendLayout();
			// 
			// button1
			// 
			this.button1.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(64)), ((System.Byte)(64)), ((System.Byte)(64)));
			this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button1.ForeColor = System.Drawing.Color.Magenta;
			this.button1.Location = new System.Drawing.Point(36, 192);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(64, 24);
			this.button1.TabIndex = 0;
			this.button1.Text = "添加用户";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(64)), ((System.Byte)(64)), ((System.Byte)(64)));
			this.button2.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button2.ForeColor = System.Drawing.Color.Magenta;
			this.button2.Location = new System.Drawing.Point(116, 192);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(64, 24);
			this.button2.TabIndex = 0;
			this.button2.Text = "修改用户";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// button3
			// 
			this.button3.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(64)), ((System.Byte)(64)), ((System.Byte)(64)));
			this.button3.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button3.ForeColor = System.Drawing.Color.Magenta;
			this.button3.Location = new System.Drawing.Point(196, 192);
			this.button3.Name = "button3";
			this.button3.Size = new System.Drawing.Size(64, 24);
			this.button3.TabIndex = 0;
			this.button3.Text = "删除用户";
			this.button3.Click += new System.EventHandler(this.button3_Click);
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(96, 32);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(224, 21);
			this.textBox1.TabIndex = 1;
			this.textBox1.Text = "";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(96, 64);
			this.textBox2.Name = "textBox2";
			this.textBox2.PasswordChar = '*';
			this.textBox2.Size = new System.Drawing.Size(224, 21);
			this.textBox2.TabIndex = 1;
			this.textBox2.Text = "";
			// 
			// textBox3
			// 
			this.textBox3.Location = new System.Drawing.Point(96, 96);
			this.textBox3.Name = "textBox3";
			this.textBox3.Size = new System.Drawing.Size(224, 21);
			this.textBox3.TabIndex = 1;
			this.textBox3.Text = "";
			// 
			// textBox4
			// 
			this.textBox4.Location = new System.Drawing.Point(96, 128);
			this.textBox4.Name = "textBox4";
			this.textBox4.PasswordChar = '*';
			this.textBox4.Size = new System.Drawing.Size(224, 21);
			this.textBox4.TabIndex = 1;
			this.textBox4.Text = "";
			// 
			// label1
			// 
			this.label1.Font = new System.Drawing.Font("宋体", 15F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label1.ForeColor = System.Drawing.Color.Lime;
			this.label1.Location = new System.Drawing.Point(80, 4);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(216, 24);
			this.label1.TabIndex = 2;
			this.label1.Text = "管理员修改用户信息";
			// 
			// label2
			// 
			this.label2.ForeColor = System.Drawing.Color.Black;
			this.label2.Location = new System.Drawing.Point(8, 36);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(80, 16);
			this.label2.TabIndex = 3;
			this.label2.Text = "管理员帐号：";
			// 
			// label3
			// 
			this.label3.ForeColor = System.Drawing.Color.Black;
			this.label3.Location = new System.Drawing.Point(8, 68);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(80, 16);
			this.label3.TabIndex = 3;
			this.label3.Text = "管理员密码：";
			// 
			// label4
			// 
			this.label4.ForeColor = System.Drawing.Color.Black;
			this.label4.Location = new System.Drawing.Point(8, 100);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(72, 16);
			this.label4.TabIndex = 3;
			this.label4.Text = "用户 帐号：";
			// 
			// label5
			// 
			this.label5.ForeColor = System.Drawing.Color.Black;
			this.label5.Location = new System.Drawing.Point(8, 132);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(80, 16);
			this.label5.TabIndex = 3;
			this.label5.Text = "用户 密码：";
			// 
			// button4
			// 
			this.button4.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(64)), ((System.Byte)(64)), ((System.Byte)(64)));
			this.button4.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button4.ForeColor = System.Drawing.Color.Magenta;
			this.button4.Location = new System.Drawing.Point(276, 192);
			this.button4.Name = "button4";
			this.button4.Size = new System.Drawing.Size(64, 24);
			this.button4.TabIndex = 0;
			this.button4.Text = "关    闭";
			this.button4.Click += new System.EventHandler(this.button4_Click);
			// 
			// sqlSelectCommand1
			// 
			this.sqlSelectCommand1.CommandText = "SELECT name, password, popedom FROM Administrator";
			this.sqlSelectCommand1.Connection = this.sqlConnection1;
			// 
			// sqlConnection1
			// 
			this.sqlConnection1.ConnectionString = "workstation id=CALMHAWK;packet size=4096;user id=sa;password=calmhawk;data source" +
				"=calmhawk;persist security info=False;initial catalog=Students";
			// 
			// sqlInsertCommand1
			// 
			this.sqlInsertCommand1.CommandText = "INSERT INTO Administrator(name, password, popedom) VALUES (@name, @password, @pop" +
				"edom); SELECT name, password, popedom FROM Administrator";
			this.sqlInsertCommand1.Connection = this.sqlConnection1;
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@name", System.Data.SqlDbType.NVarChar, 50, "name"));
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@password", System.Data.SqlDbType.NVarChar, 50, "password"));
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@popedom", System.Data.SqlDbType.NVarChar, 2, "popedom"));
			// 
			// sqlDataAdapter1
			// 
			this.sqlDataAdapter1.DeleteCommand = this.sqlCommand1;
			this.sqlDataAdapter1.InsertCommand = this.sqlInsertCommand1;
			this.sqlDataAdapter1.SelectCommand = this.sqlSelectCommand1;
			this.sqlDataAdapter1.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] {
																									  new System.Data.Common.DataTableMapping("Table", "Administrator", new System.Data.Common.DataColumnMapping[] {
																																																					   new System.Data.Common.DataColumnMapping("name", "name"),