lyzform1.cs

本文介绍了一个基于Client/Server模式的高校图书管理系统的设计与实现。运用Visual Basic.Net结合Microsoft SQL Server 2000开发的登录模块主要用于验证用户

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


namespace WindowsApplication1
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class lyzForm1 : System.Windows.Forms.Form
	{
		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.TextBox textBox5;
		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 button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button3;
		private System.Windows.Forms.DataGrid dataGrid1;
		private System.Windows.Forms.Button button4;
		private System.Data.SqlClient.SqlCommand sqlCommand1;
		private System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
		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.Data.SqlClient.SqlConnection sqlConnection1;
		private WindowsApplication1.DataSet1 dataSet11;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public lyzForm1()
		{
			//
			// 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 Form Designer generated code
		/// <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.textBox3 = new System.Windows.Forms.TextBox();
			this.textBox4 = new System.Windows.Forms.TextBox();
			this.textBox5 = 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.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.button3 = new System.Windows.Forms.Button();
			this.dataGrid1 = new System.Windows.Forms.DataGrid();
			this.button4 = new System.Windows.Forms.Button();
			this.sqlCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter();
			this.sqlSelectCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlInsertCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlUpdateCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlDeleteCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
			this.dataSet11 = new WindowsApplication1.DataSet1();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataSet11)).BeginInit();
			this.SuspendLayout();
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(96, 24);
			this.textBox1.Name = "textBox1";
			this.textBox1.TabIndex = 1;
			this.textBox1.Text = "";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(96, 64);
			this.textBox2.Name = "textBox2";
			this.textBox2.TabIndex = 7;
			this.textBox2.Text = "";
			this.textBox2.TextChanged += new System.EventHandler(this.textBox2_TextChanged);
			// 
			// textBox3
			// 
			this.textBox3.Location = new System.Drawing.Point(96, 104);
			this.textBox3.Name = "textBox3";
			this.textBox3.TabIndex = 8;
			this.textBox3.Text = "";
			// 
			// textBox4
			// 
			this.textBox4.Location = new System.Drawing.Point(296, 24);
			this.textBox4.Name = "textBox4";
			this.textBox4.TabIndex = 9;
			this.textBox4.Text = "";
			// 
			// textBox5
			// 
			this.textBox5.Location = new System.Drawing.Point(296, 80);
			this.textBox5.Name = "textBox5";
			this.textBox5.TabIndex = 10;
			this.textBox5.Text = "";
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(16, 24);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(48, 24);
			this.label1.TabIndex = 12;
			this.label1.Text = "读者号";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(16, 64);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(64, 24);
			this.label2.TabIndex = 13;
			this.label2.Text = "读者姓名";
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(16, 104);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(56, 16);
			this.label3.TabIndex = 14;
			this.label3.Text = "读者性别";
			// 
			// label4
			// 
			this.label4.Location = new System.Drawing.Point(224, 24);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(56, 24);
			this.label4.TabIndex = 15;
			this.label4.Text = "读者班级";
			// 
			// label5
			// 
			this.label5.Location = new System.Drawing.Point(224, 88);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(56, 16);
			this.label5.TabIndex = 16;
			this.label5.Text = "借阅数目";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(8, 272);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(72, 32);
			this.button1.TabIndex = 18;
			this.button1.Text = "查询";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(112, 272);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(72, 32);
			this.button2.TabIndex = 19;
			this.button2.Text = "修改";