using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.Data.SqlClient;

namespace?WindowsFormsApplication2
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????int?n?=?0;
????????????string?connString?=?“?Data?Source=.;Initial?Catalog=MyHotel;Integrated?Security=True“;
????????????SqlConnection?connection?=?new?SqlConnection（connString）;
????????????string?sql?=?string.Format（“select?count（*）?from?Admin?where?YongHuMing=‘{0}‘?and?MiMa=‘{1}‘“?txtUserName.Text.Trim（）?txtPwd.Text.Trim（））;
????????????SqlCommand?command?=?new?SqlCommand（sql?connection）;
????????????try
????????????{
????????????????connection.Open（）;
????????????????n?=?（int）command.ExecuteScalar（）;
????????????}
????????????catch?（Exception?ex）
????????????{
????????????????MessageBox.Show（“登錄失敗，失敗原因為：“?+?ex.Message）;
????????????}
????????????finally
????????????{
????????????????connection.Close（）;
????????????}
????????????if?（n?==?1）
????????????????MessageBox.Show（“用戶名密碼正確！“）;
????????????else
????????????????MessageBox.Show（“用戶名或密碼錯誤！“）;

????????}

????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{

????????}
????????}
????}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????14848??2012-04-18?09:31??圖書管理系統\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.exe

?????文件??????38400??2012-04-18?09:31??圖書管理系統\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.pdb

?????文件??????11600??2012-04-20?11:29??圖書管理系統\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.vshost.exe

?????文件????????490??2010-03-17?22:39??圖書管理系統\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.vshost.exe.manifest

?????文件???????1547??2012-04-18?09:51??圖書管理系統\WindowsFormsApplication2\Form1.cs

?????文件???????6271??2012-04-18?09:31??圖書管理系統\WindowsFormsApplication2\Form1.Designer.cs

?????文件???????5817??2012-04-18?09:31??圖書管理系統\WindowsFormsApplication2\Form1.resx

?????文件????????520??2012-04-18?10:04??圖書管理系統\WindowsFormsApplication2\Form2.cs

?????文件???????6428??2012-04-13?09:22??圖書管理系統\WindowsFormsApplication2\Form2.Designer.cs

?????文件???????5817??2012-04-13?09:22??圖書管理系統\WindowsFormsApplication2\Form2.resx

?????文件????????552??2012-04-13?09:52??圖書管理系統\WindowsFormsApplication2\Form3.cs

?????文件???????6684??2012-04-13?09:52??圖書管理系統\WindowsFormsApplication2\Form3.Designer.cs

?????文件???????5817??2012-04-13?09:52??圖書管理系統\WindowsFormsApplication2\Form3.resx

?????文件???????4440??2012-04-18?10:08??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????6280??2012-04-20?08:32??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件????????744??2012-04-18?09:31??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\GenerateResource.read.1.tlog

?????文件???????1818??2012-04-18?09:31??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\GenerateResource.write.1.tlog

?????文件???????1483??2012-04-20?11:29??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\WindowsFormsApplication2.csproj.FileListAbsolute.txt

?????文件??????14848??2012-04-18?09:31??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\WindowsFormsApplication2.exe

?????文件????????180??2012-04-18?09:31??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\WindowsFormsApplication2.Form1.resources

?????文件????????180??2012-04-18?09:14??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\WindowsFormsApplication2.Form2.resources

?????文件????????180??2012-04-18?09:14??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\WindowsFormsApplication2.Form3.resources

?????文件????????180??2012-04-18?09:14??圖書管理系統\WindowsFormsApplication2\obj\x86\Debug\WindowsFormsApplication2.Properties.Resources.resources

?????文件????????505??2012-04-13?08:47??圖書管理系統\WindowsFormsApplication2\Program.cs

?????文件???????1380??2012-04-13?08:47??圖書管理系統\WindowsFormsApplication2\Properties\AssemblyInfo.cs

?????文件???????2898??2012-04-13?08:47??圖書管理系統\WindowsFormsApplication2\Properties\Resources.Designer.cs

?????文件???????5612??2012-04-13?08:47??圖書管理系統\WindowsFormsApplication2\Properties\Resources.resx

?????文件???????1109??2012-04-13?08:47??圖書管理系統\WindowsFormsApplication2\Properties\Settings.Designer.cs

?????文件????????249??2012-04-13?08:47??圖書管理系統\WindowsFormsApplication2\Properties\Settings.settings

?????文件???????4315??2012-04-13?09:52??圖書管理系統\WindowsFormsApplication2\WindowsFormsApplication2.csproj

............此處省略14個文件信息