form1.cs

CSHARP下编写的数据库设备管理系统 SQL SERVER

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data .SqlClient;
namespace shebeiguanli
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label 设备管理系统;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button3;
		/// <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 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.设备管理系统 = new System.Windows.Forms.Label();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.label1 = new System.Windows.Forms.Label();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.label2 = 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.SuspendLayout();
			// 
			// 设备管理系统
			// 
			this.设备管理系统.Cursor = System.Windows.Forms.Cursors.IBeam;
			this.设备管理系统.Font = new System.Drawing.Font("幼圆", 24F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.设备管理系统.Location = new System.Drawing.Point(88, 24);
			this.设备管理系统.Name = "设备管理系统";
			this.设备管理系统.Size = new System.Drawing.Size(216, 40);
			this.设备管理系统.TabIndex = 0;
			this.设备管理系统.Text = "设备管理系统";
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(168, 112);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(104, 21);
			this.textBox1.TabIndex = 1;
			this.textBox1.Text = "";
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(112, 112);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(48, 16);
			this.label1.TabIndex = 2;
			this.label1.Text = "用户名";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(168, 152);
			this.textBox2.Name = "textBox2";
			this.textBox2.PasswordChar = '*';
			this.textBox2.Size = new System.Drawing.Size(104, 21);
			this.textBox2.TabIndex = 3;
			this.textBox2.Text = "";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(112, 152);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(32, 16);
			this.label2.TabIndex = 4;
			this.label2.Text = "口令";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(96, 208);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(56, 24);
			this.button1.TabIndex = 5;
			this.button1.Text = "登陆";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(232, 208);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(56, 24);
			this.button2.TabIndex = 6;
			this.button2.Text = "退出";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// button3
			// 
			this.button3.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button3.Location = new System.Drawing.Point(304, 112);
			this.button3.Name = "button3";
			this.button3.Size = new System.Drawing.Size(40, 24);
			this.button3.TabIndex = 7;
			this.button3.Text = "注册";
			this.button3.Click += new System.EventHandler(this.button3_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(408, 273);
			this.Controls.Add(this.button3);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.textBox2);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.textBox1);
			this.Controls.Add(this.设备管理系统);
			this.MaximizeBox = false;
			this.Name = "Form1";
			this.Text = "登陆窗";
			this.Load += new System.EventHandler(this.Form1_Load);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void 设备管理系统_Click(object sender, System.EventArgs e)
		{
		
		}

		private void textBox1_TextChanged(object sender, System.EventArgs e)
		{
		
		}

		private void Form1_Load(object sender, System.EventArgs e)
		{
			textBox2.Text ="";
		}

		

		private void button2_Click(object sender, System.EventArgs e)
		{
			Application.Exit();
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			
			int count1=0;
			
			SqlConnection con=new SqlConnection("workstation id=s0184;packet size=4096;initial catalog=设备管理系统;persist security info=False");
			con.Open();
			try
			{
				SqlCommand cmd=new SqlCommand("select count(*) from 用户 where 用户名='"+this.textBox1 .Text+"' and 密码='"+this.textBox2 .Text+"'",con);
				count1=Convert.ToInt32(cmd.ExecuteScalar());
			}
			catch(Exception ex)
			{
				MessageBox.Show (ex.ToString ());
			}
			if(count1>0)
			{					
				Form form2 =new Form2();
					
				form2.ShowDialog();
				  
				this.Close();				
							
						

			}
					
			else
			{
				MessageBox.Show( "您输入的用户号或密码不正确!");
			}
																						
		}

		private void button3_Click(object sender, System.EventArgs e)
		{
			SqlConnection con=new SqlConnection(" workstation id=S0184;packet size=4096;user id=sa;initial catalog=pubs;persist security info=False");
			con.Open();
			//string state = "空";
			string temp = "insert into 用户(用户名,密码) values('"+this.textBox1.Text+"','"+this.textBox2.Text+"')";
			SqlCommand cmd=new SqlCommand(temp,con);
			SqlDataReader sqlreader=cmd.ExecuteReader();
			MessageBox.Show("您已成功添加此记录");
			//				this.Close();
			textBox1.Text="";
			textBox2.Text="";
		}
	}
}