VB2010 VBNET微软官方源码 目录 需要源码请联系我
VBnet连接各类数据库源码

程序代码:
--------------------------------------------------------------------------------
using System.Data.OracleClient;
using System.Data;
请求权
1.C#连接连接Access
程序代码:
-------------------------------------------------------------------------------
using System.Data;
using System.Data.OleDb;
程序代码:
--------------------------------------------------------------------------------
using System.Data;
using System.Data.SqlClient;
..
string strConnection="user id=sa;password=;";
首先,连接SQL Server使用的命名空间不是"System.Data.OleDb",而是"System.Data.SqlClient".
其次就是他的连接字符串了,我们一个一个参数来介绍(注意:参数间用分号分隔):
"user id=sa":连接数据库的验证用户名为sa.他还有一个别名"uid",所以这句我们还可以写成"uid=sa".
VB2010VBNET源码 HOOK 键盘钩子

Case Else
'do nothing
End Select
End Sub
这只是简单的屏蔽了几个键,当然如果要屏蔽更多的键,只要在模块的LowLevelKeyboardProc函数中设置你想要拦截键盘键值过滤掉就可以了。
Call CopyMemory(p, ByVal lParam, Len(p))
If p.vkCode = VK_LWIN Or p.vkCode = VK_RWIN Then blnHook = True '按下了左/右Win键
If p.vkCode = VK_CONTROL Or p.vkCode = VK_ESCAPE Then blnHook = True '按下了Ctrl+Esc键
End Type
Private Const WM_KEYDOWN = &H100
Private Const WM_SYSKEYDOWN = &H104
Private Const WM_KEYUP = &H101
Private Const WM_SYSKEYUP e Const VK_LWIN = &H5B
End Function
Public Sub HooK()
lngHook = SetWindowsHookEx(WH_KEYBOARD_LL, _
AddressOf LowLevelKeyboardProc, _
App.hInstance, _
VB2010

2.2 对象的基本属性
Name名称属性
标识引用对象的作用(所有对象都具有的属性)
每个对象在创建时,VB就自动为它创建一个默认名 称(对象类名后跟编号,编号从1开始,依次顺延) ; 自行命名对象的命名规则:必须以一个字母或汉字 开头,可包含字母、数字、汉字和下划线,但不能 包含空格和西文标点符号,长度不得超过40个字符 在同一窗体中,控件对象的名称属性值是唯一的、 不能同名,在同一工程中,窗体对象也不能同名
方法只能在代码中使用
23
2.1 可视化编程的基本概念
事件(Event)
就是预先设置好的、能够被对象识别的动作;它往往 能使某个对象进入活动状态(又称激活),并体现了对 象对于外部操作或动作响应的能力 只要程序设计者为某个对象在某个事件发生时,规定 了具体操作,那么该对象响应识别了该事件后,就会 按照规定的操作执行。(事件过程:可以通过一段程 序代码来响应某个具体事件所执行的操作,这段程序 代码即为事件过程 。) 用一个“事件”激活某个对象,随着该对象的活动, 会引发新的“事件”,这个事件又可能使另一个“对 象”激活,对象之间就是以这种方式联系在一起的 24
26
2.1 可视化编程的基本概念
练习
4.以下有关对象属性的说法正确的是( ) A.对象所有的属性都罗列在属性窗口列表中 B.不同对象不可能有同名属性 C.不同对象的同名属性的取值一定相同 D.对象的某些属性既可在属性窗口中设置,也可通过 程序代码设置或改变 5.事件的名称( ) A.都要由用户定义 B.有的由用户定义 C.都由系统定义 D.是不固定的 6.( )在用户的应用程序执行期间发生,比如单击
启动:
(1)若VB6.0是在Visual Studio 6.0的安装过程中安装,单击“开 始”“程序”Microsoft Visual Studio 6.0Microsoft Visual Basic 6.0中文版。 (2)若单独安装了VB6.0,则单击“开始”“程序”Microsoft Visual Basic 6.0中文版
VB2010VBNET源码 读取网页代码

' ServerPort = Val(CInt(WinApiM.GetMySet("ServerPort", tstbport.Text))) '写入注册表
' ServerIP = WinApiM.GetMySet("serverip", tstbip.Text)
Sub GetHTMLInfo()
Dim url As String = "" ' 网页地址
Dim httpReq As .HttpWebRequest
Dim httpResp As .HttpWebResponse
Dim httpURL As New System.Uri(url)
httpReq = CType(Net.HttpWebRequest.Create(httpURL), Net.HttpWebRequest)
httpReq.Method = "GET"
' MySktCls.ConnectToServer(tstbip.Text, tstbport.Text) '如果发现端口或ip不对就马上重新连接If MySktCls.IsConnected = False Then
' ' ConnectToServer(tstbip.Text, CInt(Val(tstbport.Text)))
' End If
'End If
'对获取到的网页代码进行处理END
url = ""
myip = ""
myPort = ""
VB.NETVB2010自己动手做记事本源码

VB2010自己动手做记事本源码Imports System.IOPublic Class Form1Dim TempPath As StringPrivate Sub打开OToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles打开OToolStripMenuItem.ClickTryOpenFileDialog1.FileName = ""OpenFileDialog1.Filter = "文本文档|*.txt"OpenFileDialog1.InitialDirectory = "C:\"OpenFileDialog1.ShowDialog()TextBox1.Text = File.ReadAllText(OpenFileDialog1.FileName, System.Text.Encoding.Default)TempPath = OpenFileDialog1.FileNameCatch ex As ExceptionMsgBox(ex.Message)End TryEnd SubPrivate Sub保存SToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles保存SToolStripMenuItem.ClickTryFile.WriteAllText(TempPath, TextBox1.Text, System.Text.Encoding.Default) Catch ex As Exception MsgBox(ex.Message)End TryEnd SubPrivate Sub另存为AToolStripMenuItem_Click(ByVal senderAToolStripMenuItem.ClickTrySaveFileDialog1.ShowDialog()Catch ex As ExceptionMsgBox(ex.Message)End TryEnd SubPrivate Sub新建NToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles新建NToolStripMenuItem.Click'TextBox1.Text = ""TextBox1.Clear()End SubPrivate Sub撤消UToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles撤消UToolStripMenuItem.ClickTextBox1.Undo()End SubPrivate Sub重复RToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles重复RToolStripMenuItem.ClickTextBox1.Undo()End SubPrivate Sub剪切TToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles剪切TToolStripMenuItem.ClickTextBox1.Cut()End SubPrivate Sub复制CToolStripMenuItem_Click(ByVal sender AsCToolStripMenuItem.ClickTextBox1.Copy()End SubPrivate Sub粘贴PToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles粘贴PToolStripMenuItem.ClickTextBox1.Paste()End SubPrivate Sub全选AToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles全选AToolStripMenuItem.ClickTextBox1.SelectAll()End SubPrivate Sub自动换行CT oolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles自定义CToolStripMenuItem.ClickIf TextBox1.WordWrap = True ThenTextBox1.WordWrap = FalseElseTextBox1.WordWrap = TrueEnd IfEnd SubPrivate Sub退出XToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles退出XToolStripMenuItem.ClickMe.Close()End SubPrivate Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load End SubEnd Class。
vb.net开发实例源代码

开发实例源代码
以下是一个简单的 开发实例源代码,用于创建一个 Windows 应用程序,显示一个带有按钮的窗口,当点击按钮时会弹出一个消息框。
```vb
Public Class Form1
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
MessageBox.Show("你点击了按钮!")
End Sub
End Class
```
在这个示例中,我们创建了一个名为 `Form1` 的类,其中包含一个名为 `Button1` 的按钮和一个名为 `Button1_Click` 的事件处理程序。
当点击按钮时,`Button1_Click` 事件处理程序将执行,弹出一个消息框显示 "你点击了按钮!"。
这只是一个简单的示例,你可以根据自己的需求进行扩展和修改。
提供了丰富的工具和功能,帮助你创建各种类型的应用程序,包括 Windows 桌面应用程序、Web 应用程序、移动应用程序等。
如果你有特定的需求或想要进一步学习 开发,我建议你参考相关的教程、书籍或在线资源,以获取更详细和深入的信息。
VB.NETVB2010 发送邮件源码源码

Imports .MailImports System.TextImports System.SecurityImports .SocketsPublic Class Form1Private Sub CheckBox1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles chk.CheckedChangedIf chk.Checked = True ThentxtName.Enabled = TruetxtPassword.Enabled = TrueElsetxtName.Enabled = FalsetxtPassword.Enabled = FalseEnd IfEnd SubPrivate Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSend.ClickDim mail As New MailMessage()mail.From = New MailAddress(txtFrom.Text)mail.To.Add(txtTo.Text)'set the contentmail.Subject = txtSubject.Textmail.Body = txtContent.Text''specify the priority of the mail messagemail.Priority = MailPriority.High'to add custom headers, we use the Headers.Add(...) method to add headers to the'.Headers collectionmail.Headers.Add("X-Company", "JOHN NG SDN BHD")mail.Headers.Add("X-Location", "Malaysia")Dim smtp As New SmtpClient(txtSMTP.Text)If chk.Checked = True Thensmtp.Credentials = New workCredential(txtName.Text, txtPassword.Text)End If'检测是否有附件If TextBox1.Text.Trim <> ""Then''带附件If Dir(TextBox1.Text.Trim) = ""ThenElseDim attach As Net.Mail.Attachment = New Net.Mail.Attachment(TextBox1.Text) mail.Attachments.Add(attach)End IfEnd IfTrysmtp.Send(mail)MsgBox("恭喜,邮件已经发送到指定的邮件地址.", rmation, "邮件发送示例")Catch ex As ExceptionMsgBox(ex.Message, MsgBoxStyle.Critical, "邮件发送失败")End TryEnd SubPrivate Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.ClickIf OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK ThenTextBox1.Text = OpenFileDialog1.FileNameEnd IfEnd SubEnd Class。
vb2010中文版下载

vb2010中文版下载VB2010中文版下载VB2010是由微软公司开发的一种基于.NET框架的编程语言和集成开发环境。
它是Visual Basic(简称VB)语言的最新版本,为开发人员提供了一种强大而易于使用的工具来创建Windows应用程序、Web应用程序和移动应用程序。
VB2010的中文版是指该开发环境和相关资源已经被翻译成中文,方便国内开发人员使用和学习。
VB2010拥有一系列强大的功能和特性,使得开发人员能够快速、高效地创建应用程序。
下面将详细介绍如何下载和安装VB2010中文版。
首先,我们需要从微软官方网站上下载VB2010中文版的安装程序。
打开任意一个主流浏览器,输入“VB2010中文版下载”进行搜索,即可找到多个下载来源。
请务必确保使用正版和安全的下载渠道,以免下载到病毒或恶意软件。
选择一个可信的下载链接后,点击进入对应的网页。
在网页上,你通常会看到有关VB2010中文版的介绍、特性和下载链接。
找到下载按钮或链接,点击开始下载。
下载过程可能需要一些时间,具体取决于你的网络速度和文件大小。
一旦下载完成,你可以找到下载文件的保存位置(通常是计算机的“下载”文件夹)。
双击下载的安装程序,开始安装VB2010中文版。
安装程序将引导你进行一系列设置和选择,如选择安装位置、语言选项等。
请根据自己的需求进行选择。
一旦安装过程完成,VB2010中文版将成功安装在你的计算机上。
现在,你可以开始使用VB2010中文版了。
打开VB2010的开发环境,你可以看到一个直观的用户界面,有多个工具箱和编辑窗口。
通过菜单和工具栏,你可以访问各种开发工具和功能。
VB2010中文版提供了许多示例代码、模板和文档,以帮助你入门。
你可以通过菜单中的“帮助”选项访问在线帮助文档,并学习如何使用各种功能和技术。
此外,网络上也有很多VB2010的教程和学习资源可供参考。
在使用VB2010中文版进行开发时,你可以创建各种类型的应用程序,如桌面应用程序、Web应用程序、控制台应用程序等。
VB精典实用源代码(详细))

个人收藏的VB精典实用源代码。
若朋友您想要问如何才能学好vb,或者入门需要看什么教材一类的问题,建议你抱着一颗刻苦钻研的心去面对这门学问,多动脑,少提问,遇到不知道的,多查资料,多看看帖子,或者用断点来亲自试验。
实在不会了,请在此贴中查找您的常见问题,如果还没有,那请您发出新贴,向各位高手讨教:)查找方法:按ctrl+f,输入要查找的问题关键字即可每个问题中间用///分隔,这只是一部分最常见到的问题,以后会逐渐更新。
////////////////////////////////////////////////////////////////////////////////////如何用VB建立快捷方式Private Declare Function fCreateShellLink Lib "STKIT432.DLL" (ByVal lpstrFolderName As String, ByVal lpstrLinkName As String, ByVal lpstrLinkPath As String, ByVal lpstrLinkArgs As String) As LongSub Command1_Click()Dim lReturn As Long'添加到桌面lReturn = fCreateShellLink("..\..\Desktop", "Shortcut to Calculator", "c:\windows\calc.exe", "")'添加到程序组lReturn = fCreateShellLink("", "Shortcut to Calculator", "c:\windows\calc.exe", "")'添加到启动组lReturn = fCreateShellLink("\Startup", "Shortcut to Calculator", "c:\windows\calc.exe", "")End Sub////////////////////////////////////////////////////////////////////////////////////如何让程序在Windows 启动时自动执行?有以下二个方法:方法1: 直接将快捷方式放到启动群组中。
VB2010VBNET源码 获取操作系统版本

Vers = "Windows95"
Case 10 '98
If os.Version.Revision.ToString = "2222A" Then
Vers = "Windows7"
Case 2
Vers = "Windows8"
Case Else
Vers = "Windows982ndEdition"
Else
Vers = "Windows98"
End If
End Select
Case PlatformID.Win32NT 'WIN2K、XP、2003、Vista、2008、Win7
Select Case os.Version.Major
Vers = "WindowsCE"
Case Else
Vers = "UnKnown"
End Select
Return Vers
End Function
''' <summary>
''' 获取操作系统平台。
''' </summary>
''' <returns></returns>
''' <remarks></remarks>
Private Function GetCurrentPlatform() As String
Case PlatformID.Win32Windows 'WIN95、98、ME
VB.NETVB2010 四则计算器源码

Public Class Form1'计算器的原理:'将输入的算式以运算符进行分割并计算'例如1+1分割成1、+、1,三个部分,然后运算Function CutStr(ByVal InPutStr As String) As String()Dim CalStr(3) As StringIf InStr(InPutStr, "+") Then'算式中有+号那么就是加法CalStr(0) = InPutStr.Split("+")(0)CalStr(1) = "+"CalStr(2) = InPutStr.Split("+")(1)ElseIf InStr(InPutStr, "-") Then'算式中有-号那么就是减法CalStr(0) = InPutStr.Split("-")(0)CalStr(1) = "-"CalStr(2) = InPutStr.Split("-")(1)ElseIf InStr(InPutStr, "*") Then'算式中有*号那么就是乘法CalStr(0) = InPutStr.Split("*")(0)CalStr(1) = "*"CalStr(2) = InPutStr.Split("*")(1)ElseIf InStr(InPutStr, "/") Then'算式中有/号那么就是除法CalStr(0) = InPutStr.Split("/")(0)CalStr(1) = "/"CalStr(2) = InPutStr.Split("/")(1)Else'算式中没有运算符号CalStr(0) = InPutStrCalStr(1) = ""CalStr(2) = ""End IfReturn CalStrEnd FunctionPrivate Sub数字键_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles数字键0.Click, 数字键1.Click, 数字键2.Click, 数字键3.Click, 数字键4.Click, 数字键5.Click, 数字键6.Click, 数字键7.Click, 数字键8.Click, 数字键9.Click'输入键,如果当前是0那么覆盖输入,如果当前不是0那么追加输入If显示框.Text = "0"Then显示框.Text = sender.textElse显示框.Text = 显示框.Text & sender.textEnd IfEnd SubPrivate Sub小数点_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles小数点.Click'此处比较复杂举例说明'当前按下后输入'没有运算符没有小数的数字例如:2 2.'没有运算符含有小数的数字例如:2. 不输入仍是:2.'含有运算符没有小数例如:3+3 3+3.'含有运算符含有小数例如:3+3. 不输入仍是3+3.'含有运算符运算符后为空例如:3+ 补0输入:3+0.If CutStr(显示框.Text)(1) = ""Then'表示没有运算符If InStr(显示框.Text, sender.text) = False Then'没有运算符没有小数的数字例如:2 2.显示框.Text = 显示框.Text & sender.textEnd IfExit SubElse'表示含有运算符If InStr(CutStr(显示框.Text)(2), sender.text) = False ThenIf CutStr(显示框.Text)(2) = ""Then'含有运算符运算符后为空例如:3+ 补0输入:3+0.显示框.Text = 显示框.Text & "0" & sender.textElse'含有运算符没有小数例如:3+3 3+3.显示框.Text = 显示框.Text & sender.textEnd IfEnd IfEnd IfEnd SubPrivate Sub运算符_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles运算符乘.Click, 运算符除.Click, 运算符加.Click, 运算符减.Click'如果已经存在运算符了,那么,不允许输入If (InStr(显示框.Text, "+") Or InStr(显示框.Text, "-") Or InStr(显示框.Text, "*") Or InStr(显示框.Text, "/")) = False Then显示框.Text = 显示框.Text & sender.textEnd IfEnd SubPrivate Sub清零键_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles清零键.Click'清零就是在显示框显示0显示框.Text = "0"End SubPrivate Sub运算符等于_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles运算符等于.Click'对运算符进行判断,并进行相应的运算Select Case CutStr(显示框.Text)(1)Case"+"显示框.Text = Val(CutStr(显示框.Text)(0)) + Val(CutStr(显示框.Text)(2)) Case"-"显示框.Text = Val(CutStr(显示框.Text)(0)) - Val(CutStr(显示框.Text)(2)) Case"*"显示框.Text = Val(CutStr(显示框.Text)(0)) * Val(CutStr(显示框.Text)(2)) Case"/"显示框.Text = Val(CutStr(显示框.Text)(0)) / Val(CutStr(显示框.Text)(2)) Case ElseEnd SelectEnd SubEnd Class。
VB.net项目源码

项⽬源码导⼊函数调⽤模块Imports System.DataImports System.Data.OleDbImports System.TextImports System.IO添加删除更新模块此模块直接运⾏,不需要返回表(记录)Public Sub exenonselect(ByVal sql As String)TryDim constr As String = "provider=microsoft.jet.oledb.4.0;data source=" & Application.StartupPath & "\xwgl.mdb;jet oledb:database password=lihua"Dim con As OleDbConnection = New OleDbConnection(constr)con.Open()Dim cmdexe As OleDbCommand = New OleDbCommand(sql, con)cmdexe.ExecuteNonQuery()con.Close()cmdexe.Dispose()con.Dispose()Catch ex As ExceptionMessageBox.Show("数据链接失败,请与开发商联系", MessageBoxButtons.OK, rmation)Application.Exit()End TryEnd Sub查询模块此模块⽤来查询,返回查询信息Public Function exeselect(ByVal sql As String) As DataTableTryDim constr As String = "provider=microsoft.jet.oledb.4.0;data source=" & Application.StartupPath & "\xwgl.mdb;jet oledb:database password=lihua"Dim con As OleDbConnection = New OleDbConnection(constr)con.Open()Dim da As OleDbDataAdapter = New OleDbDataAdapter(sql, con)Dim dt As New DataTableda.Fill(dt)con.Close()con.Dispose()Return dtdt.Dispose()da.Dispose()Catch ex As ExceptionMessageBox.Show("数据链接失败,请与开发商联系" , MessageBoxButtons.OK, rmation) Application.Exit()Return New DataTableEnd TryEnd Function加密模块'⾃⾏加密Public Function lhjm(ByVal s As String, ByVal pwds As String) As StringDim charsingle As String = String.EmptyDim charnum As IntegerDim charkey As String = String.EmptyDim s1 As String = String.EmptyDim i As LongFor i = 1 To Len(s)charsingle = Mid(s, i, 1)charnum = Asc(charsingle)If charnum <> 0 And charnum <> 8 And charnum <> 9 And charnum <> 127 Then'加密charkey = Mid(pwds, (i Mod Len(pwds)) + 1, 1)charnum = Asc(charsingle) Xor (Asc(charkey) And &H7F)If charnum <> 0 And charnum <> 8 And charnum <> 9 And charnum <> 127 Thens1 += Chr(charnum)Elses1 += charsingleEnd IfElses1 += charsingleEnd IfNextlhjm = s1End Function'MD5加密Public Function pwdjm(ByVal s As String) As StringTryDim a() As Byte = (New System.Text.UnicodeEncoding).GetBytes(s)Dim b() As Byte = CType(System.Security.Cryptography.CryptoConfig.CreateFromName("md5"),System.Security.Cryptography.HashAlgorithm).ComputeHash(a)Dim s1 As String = String.EmptyFor i As Integer = 0 To b.Length - 1 Step 2s1 += Hex(b(i)).ToStringNextReturn s1Catch ex As ExceptionMessageBox.Show("数据链接失败,请与开发商联系", MessageBoxButtons.OK, rmation)Application.Exit()Return String.EmptyEnd TryEnd Function获取数据库中的表到列表框中Private Sub bmb_bind()Dim i As IntegerDim con As OleDbConnection = New OleDbConnection("provider=microsoft.jet.oledb.4.0;data source=" & Application.StartupPath & "\xwgl.mdb;jet oledb:database password=lihua")con.Open()Dim dt As DataTable = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, New Object() {Nothing, Nothing, Nothing, "table"}) boBox1.Items.Clear()For i = 0 To dt.Rows.Count - 1If dt.Rows(i).Item(2).ToString.Substring(0, 2) = "xy" ThenboBox1.Items.Add(dt.Rows(i).Item(2).ToString.Substring(2, 4) + "年学员信息报名管理表")End IfNextdt.Dispose()con.Close()con.Dispose()End Sub获取当前年的表Private Sub studfrm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Loadbmb_bind()'判断当前年的表是否存在Dim i As IntegerDim bj As String = 0For i = 0 To boBox1.Items.Count - 1If Year(Now()).ToString = boBox1.Items(i).ToString.Substring(0, 4) Thenbj = 1Exit ForEnd IfNext'如果不存在,则⾃动创建If bj = 0 ThenTryDim dt1 As New DataTabledt1 = lihua.exeselect("select * into [xy" & Trim(Str(Year(Now()))) & "] from [xueyuan]") dt1.Dispose()bmb_bind()Catch ex As ExceptionExit SubEnd TryEnd IfboBox1.Text = Trim(Str(Year(Now()))) + "年学员信息报名管理表"End Sub⾃定义编号Dim ybh As String = String.Empty '已存在的编号Dim i As IntegerFor i = 0 To Me.DataGridView1.Rows.Count - 1ybh += Me.DataGridView1.Item(1, i).Value & "*"NextDim bh As String = ""For i = 1 To 9999If i < 10 Thenbh = "000" + Trim(Str(i))ElseIf i < 100 Thenbh = "00" + Trim(Str(i))ElseIf i < 1000 Thenbh = "0" + Trim(Str(i))Elsebh = Trim(Str(i))End Ifbh = boBox1.Text.ToString.Substring(0, 4) & "" & bh & ""If InStr(ybh, bh) = 0 ThenExit ForEnd IfNextMe.lbbmh.Text = "" & bh & ""Exit SubEnd If⽂本框控制输⼊If (e.KeyChar < Chr(48) Or e.KeyChar > Chr(57)) And e.KeyChar <> Chr(13) And e.KeyChar <> Chr(8) Thene.KeyChar = NothingEnd If动态变换⽋费If Me.btmod.Text = "保存(&S)" ThenMe.tbqf.Text = Str(Val(Me.DataGridView1.Item(9, Me.DataGridView1.CurrentCell.RowIndex).Value) - Val(Me.tbjf.Text)) If Me.tbqf.Text < 0 ThenMessageBox.Show("⽋费不能⼩于0,请输⼊正确的格式")Me.tbjf.Text = ""Me.tbjf.Focus()End IfEnd If多条件查询If Me.tbselval.Text = "" ThenMessageBox.Show("查询的值不能为空")Me.tbselval.Focus()Exit SubEnd IfIf (Me.cbselyj.Text = "报名时间" Or Me.cbselyj.Text = "修改时间") And Me.cbsellx.Text <> "按⽉查询" ThenIf IsDate(Me.tbselval.Text) = False ThenMessageBox.Show("请输⼊正确的⽇期格式: 如2010-6-12")Me.tbselval.Focus()Me.tbselval.SelectAll()Exit SubEnd IfEnd IfIf Me.cbsellx.Text = "按⽉查询" ThenIf Val(Me.tbselval.Text) < 1 Or Val(Me.tbselval.Text) > 12 ThenMessageBox.Show("请输⼊正确的⽉份,1-12 之间")Me.tbselval.Focus()Me.tbselval.SelectAll()Exit SubEnd IfEnd IfDim s As String = ""获取选择的依据Select Case Me.cbselyj.TextCase "报名时间", "修改时间"If Me.cbsellx.Text = "按⽉查询" Thens = "month(" & Me.cbselyj.Text & ")"Elses = Me.cbselyj.TextEnd IfCase Elses = Me.cbselyj.TextEnd Select获取选择的类型Select Case Me.cbsellx.TextCase "包含"s = s + " like '%" & Me.tbselval.Text & "%'"Case "不包含"s = s + " not like '%" & Me.tbselval.Text & "%'"Case "等于"If Me.cbselyj.Text = "性别" Thens = s + "= '" & Me.tbselval.Text & "'"ElseIf Me.cbselyj.Text = "报名时间" Or Me.cbselyj.Text = "修改时间" Then s = s + "= #" & Me.tbselval.Text & "#"ElseIf Me.cbselyj.Text = "⽋费" Thens = s + "=" & Me.tbselval.TextEnd IfCase "按⽉查询"s = s + "=" & Me.tbselval.TextCase "⼤于"If Me.cbselyj.Text = "报名时间" Or Me.cbselyj.Text = "修改时间" Then s = s + ">#" & Me.tbselval.Text & "#"ElseIf Me.cbselyj.Text = "⽋费" Thens = s + ">" & Me.tbselval.TextEnd IfCase "⼤于等于"If Me.cbselyj.Text = "报名时间" Or Me.cbselyj.Text = "修改时间" Then s = s + ">=#" & Me.tbselval.Text & "#"ElseIf Me.cbselyj.Text = "⽋费" Thens = s + ">=" & Me.tbselval.TextEnd IfCase "⼩于"If Me.cbselyj.Text = "报名时间" Or Me.cbselyj.Text = "修改时间" Then s = s + "<#" & Me.tbselval.Text & "#"ElseIf Me.cbselyj.Text = "⽋费" Thens = s + "<" & Me.tbselval.TextEnd IfCase "⼩于等于"If Me.cbselyj.Text = "报名时间" Or Me.cbselyj.Text = "修改时间" Then s = s + "<=#" & Me.tbselval.Text & "#"ElseIf Me.cbselyj.Text = "⽋费" Thens = s + "<=" & Me.tbselval.TextEnd IfEnd Select根据添加条件来进⾏判断tjnum = tjnum + 1s1 += "条件:" & Trim(Str(tjnum)) & " " & Me.cbselyj.Text & " " & Me.cbsellx.Text & " " & Me.tbselval.Text + vbNewLine如果条件数量⼤于1的话即多条记录If tjnum > 1 Thencxtj = cxtj + IIf(Me.cborand.Text = "并且", " and ", " or ")End Ifcxtj += scxtj = "(" & cxtj & ")"Me.tbwb.Text = s1 + vbNewLine + cxtj '⽂本显⽰ date_bd()。
VB2010完美代码库

VB2010 知识宝库常用命名空间和类介绍一.窗体事件0.自动调整窗体Public xz, yz As DoublePublic Sub zishiying(ByVal parent As Control) xz = 75 / Form5.Button1.Widthyz = 23 / Form5.Button1.HeightDim sFont As FontDim zihao As Integer = c.Font.Size * xz / 1.2 \ 1sFont = New Font(c.Font.FontFamily, zihao, c.Font.Style)c.Font = sFontc.Width = c.Width * xzc.Height = c.Height * yzc.Left = c.Left * xzc.Top = c.Top * yzzishiying(c)NextEnd SubPrivate Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click zishiying(Me)End Sub1.打印文字。
方法一:在窗体上打印文字Dim g As Graphics = Me.CreateGraphicsDim mBrush As New SolidBrush(Color.Red)Dim mFont As New Font("宋体", 18)g.DrawString("测试", mFont, mBrush, 0, 10)(0 为横坐标,10 为纵坐标)方法二:在窗体上画文字Dim m As Graphicsm = Me.CreateGraphicsm.DrawString("This is a diagonal line drawn on the control", _New Font("Arial", 10), Brushes.Gold, New PointF(300.0F, 444.0F))m.Dispose()方法三:在图片框上打印文字Public Class Form2' This example creates a PictureBox control on the form and draws to it.' This example assumes that the Form_Load event handler method is connected' to the Load eventof the form.Private pictureBox1 As New PictureBox()Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load ' Dock the PictureBox to the form andset its background to white.pictureBox1.Dock = DockStyle.FillpictureBox1.BackColor = Color.White' Connect the Paint eventof the PictureBox to the event handler method.➢AddHandler pictureBox1.Paint, AddressOfMe.pictureBox1_Paint' Add the PictureBox control to the Form.Me.Controls.Add(pictureBox1)End Sub'Form1_Load00:00:03.9522260Private Sub pictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) ' Create a local version of the graphics objectfor the PictureBox.Dim g As Graphics = e.Graphics' Draw a stringon the PictureBox.g.DrawString("This is a diagonal line drawn on the control", _New Font("Arial", 10), Brushes.Red, New PointF(30.0F, 30.0F))' Draw a line in the PictureBox.g.DrawLine(System.Drawing.Pens.Red, PictureBox1.Left, _PictureBox1.Top, PictureBox1.Right, PictureBox1.Bottom)End Sub'pictureBox1_PaintEnd Class2.关闭窗体窗体.Dispose3. 创建一个透明度为75%的窗体Private Sub CreateMyOpaqueForm()' Create a new form.Dim form2 As New Form()' Set the text displayed in the caption.form2.Text = "My Form"' Set the opacity to 75%.form2.Opacity = 0.75' Size the form to be 300 pixels in height and width.form2.Size = New Size(300, 300)' Display the form in the center of the screen.form2.StartPosition = FormStartPosition.CenterScreen' Display the form as a modal dialog box.form2.ShowDialog()4.用代码在窗体添加一个按钮.Dim button1 As New Button()' Set the button to return a value of OK when clicked.button1.DialogResult = DialogResult.OK' Add the button to the form.button1.Text = 1235.自动生成一个窗体并创建两个按钮(点击Cancle窗体自动关闭,如果他失去焦点,他不仅会响还会晃)Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click' Create a new instance of the form.Dim form1 As New Form()' Create two buttons to use as the accept and cancel buttons.Dim button1 As New Button()Dim button2 As New Button()' Set the text of button1 to "OK".button1.Text = "OK"' Set the position of the button on the form.button1.Location = New Point(10, 10)' Set the text of button2 to "Cancel".button2.Text = "Cancel"' Set the position of the button based on the location of button1.button2.Location = _New Point(button1.Left, button1.Height + button1.Top + 10)' Set the caption bar text of the form.form1.Text = "My Dialog Box"' Display a help button on the form.form1.HelpButton = True' Define the border style of the form to a dialog box.form1.FormBorderStyle = FormBorderStyle.FixedDialog' Set the MaximizeBox to false to remove the maximize box.form1.MaximizeBox = False' Set the MinimizeBox to false to remove the minimize box.form1.MinimizeBox = False' Set the accept button of the form to button1.form1.AcceptButton = button1' Set the cancel button of the form to button2.form1.CancelButton = button2' Set the start position of the form to the center of the screen.form1.StartPosition = FormStartPosition.CenterScreen' Add button1 to the form.form1.Controls.Add(button1)' Add button2 to the form.' Display the form as a modal dialog box.form1.ShowDialog()End Sub演练:使用WPF 设计器生成视频浏览器6.产生此效果Public Class Form1' Create a new form.Dim mdiChildForm As New FormDim mdiChildForm1 As New FormDim mdiChildForm2 As New FormPrivate Sub Form1_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles MyBase.Load' Set the IsMdiContainer property to true.IsMdiContainer = True' Set the child form's MdiParent property to' the current form.mdiChildForm.MdiParent = MemdiChildForm1.MdiParent = MemdiChildForm2.MdiParent = MemdiChildForm.Show()mdiChildForm1.Show()mdiChildForm2.Show()mdiChildForm.Text = 1mdiChildForm1.Text = 2mdiChildForm2.Text = 3End SubEnd Class7. 改变窗体的背景颜色Dim ctl As ControlIsMdiContainer = True' Loop through controls,' looking for controls of MdiClient type.For Each ctl In Me.ControlsIf TypeOf (ctl) Is MdiClient Then' If the control is the correct type,' change the color.ctl.BackColor = System.Drawing.Color.PaleGreen End IfNextEnd Sub7(2)Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.ClickBackColor = System.Drawing.Color.PaleGreenEnd Sub或BackColor=Color.Blue系统颜色:GroupBox3.BackColor = Control.DefaultBackColor8.绘制椭圆窗体Dim shape As New System.Drawing.Drawing2D.GraphicsPathshape.AddEllipse(0, 0, Me.Width, Me.Height)Me.Region = New System.Drawing.Region(shape)9.获取当前时间Text1.Text = Now.ToLongTimeString (只有时间 20 :55 :36)Text1.Text = Now (有日期和时间 2012/1/29 20 :57 :36)Text1.Text = Today (只有日期 2012/1/29)10.用鼠标滚轮调整窗体的透明度Private Sub Form1_MouseWheel(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseWheelStatic m As IntegerIf m > 1 And m <= 100 And e.Delta > 0 Thenm = m + 5ElseIf m > 1 And m <= 100 And e.Delta < 0 Thenm = m - 5Elsem = 100End IfMe.Opacity = m * 0.01TextBox1.Text = mMe.TopMost = TrueEnd Sub11.绝对坐标Control.MousePosition.X - 25Control.MousePosition.YControl.MousePosition12.相对坐标.e.X e.Y13.调用窗体的Paint事件Me.Invalidate()14. 禁用窗体的关闭按钮Public Class Form1Private Declare Function GetSystemMenu Lib"User32"(ByVal hwnd As Integer, ByVal bRevert As Integer) As Integer Private Declare Function RemoveMenu Lib"User32"(ByVal hMenu As Integer, ByVal nPosition As Integer, ByVal wFlags As Integer) As IntegerPrivate Declare Function DrawMenuBar Lib"User32" (ByVal hwnd As Integer) As IntegerPrivate Declare Function GetMenuItemCount Lib"User32" (ByVal hMenu As Integer) As IntegerPrivate Const MF_BYPOSITION = &H400&Private Const MF_DISABLED = &H2&Private Sub disableX(ByVal wnd As Form)Dim hMenu As Integer, nCount As IntegerhMenu = GetSystemMenu(wnd.Handle.ToInt32, 0)'得到系统Menu的个数nCount = GetMenuItemCount(hMenu)'去除系统MenuCall RemoveMenu(hMenu, nCount - 1, MF_BYPOSITION Or MF_DISABLED)'重画MenuBarDrawMenuBar(Me.Handle.ToInt32)End SubPrivate Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.ClickdisableX(Me) '屏蔽关闭按钮End SubPrivate Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click Me.MaximizeBox = False'屏蔽最大化按钮End SubPrivate Sub Button3_Click(sender As System.Object, e As System.EventArgs) Handles Button3.Click Me.MinimizeBox = False'屏蔽最小化按钮End SubEnd Class15.移动窗体Public Class Form1Dim x%, y%Private Sub Label1_MouseDown(sender As Object, e As System.Windows.Forms.MouseEventArgs) HandlesLabel1.MouseDownx = e.Xy = e.YTimer1.Enabled = TrueEnd SubSub yidong()Me.Left = Control.MousePosition.X - Label1.Left - x - 9Me.Top = Control.MousePosition.Y - Label1.Top - 36 - yEnd SubPrivate Sub Label1_MouseUp(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles Label1.MouseUp Timer1.Enabled = FalseEnd SubEnd Class16.最小化窗体Me.WindowState = System.Windows.Forms.FormWindowState.Minimized '最小化窗体17.在窗体的指定位置截取指定的形状Private Sub Form1_Paint(sender As Object, e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint ' Create a GraphicsPath object and add a rectangle to it.Dim pathRect As New Rectangle(0, 0, 100, 200)myPath.AddRectangle(pathRect)' Draw the path to the screen.Dim myPen As New Pen(Color.Black, 2)e.Graphics.DrawPath(myPen, myPath)' myGraphicsPath.AddEllipse(New Rectangle(0, 0, 200, 450))Me.Region = New Region(myPath)End Sub17.完全透明效果Me.BackColor = Color.WhiteMe.TransparencyKey = Color.White或Public Class Form1Public Structure MARGINSPublic cxLeftWidth As IntegerPublic cxRightWidth As IntegerPublic cyTopHeight As IntegerPublic cyButtomheight As IntegerEnd StructurePublic Shared Function DwmExtendFrameIntoClientArea(ByVal hWnd As IntPtr, ByRef pMarinset As MARGINS) As Integer End FunctionPrivate Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click Me.TransparencyKey = Color.FromArgb(255, 255, 1)Me.BackColor = Me.TransparencyKeyDim margins As MARGINS = New MARGINSmargins.cxLeftWidth = -1margins.cxRightWidth = -1margins.cyTopHeight = -1margins.cyButtomheight = -1DwmExtendFrameIntoClientArea(Me.Handle, margins)End SubEnd Class18.毛玻璃效果Imports System.Runtime.InteropServicesPublic Class Form1'Vista与Windows 7中的Aero界面是它们最吸引人的新功能之一,它可以实现大面积的透明界面。
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
应用程序示例这些示例演示如何创建各类应用程序以及使用项目、用户和程序集任务。
这些示例存储在Applications Samples 目录中。
∙AppEvents:演示通过项目设计器访问的应用程序事件∙ClickOnce:使用ClickOnce 部署和更新应用程序∙ConsoleApps:使用控制台窗口演示简单的输入和输出。
∙Environment:演示几个提供环境信息的类的用法。
∙Excel:演示如何使用Visual Basic 启动Excel、从模板创建工作簿、更新工作表中的单元格、在工作簿中填充图形以及执行其他任务∙Game:演示My 功能、面向对象编程和绘图。
∙Logging:使用My.Application.Log 对象将信息记录到文件和事件日志。
∙Multithread:演示实现多线程任务的两种不同方式。
∙MyResources:演示My.Settings 和My.Resources 对象。
∙PowerPoint:演示如何在Visual Basic 应用程序中启动PowerPoint、创建空白演示文稿、添加幻灯片和内容、打印幻灯片、保存更改以及退出PowerPoint。
∙PrintformSample:演示打印预览功能的用法。
∙SendMail:演示如何使用System.Web.Mail 命名空间中的类通过SMTP 发送电子邮件∙TCPRemoting:演示如何使用.NET Framework 远程处理体系结构。
它使用XML 配置文件指定可用的对象和服务器位置信息o Cliento RemoteHost∙ThreadUIUpdate:演示当数据来自不同的线程时如何更新用户界面。
∙UpgradeSample:演示一个以Visual Basic 6.0 编写的应用程序,以及如何将该应用程序升级到Visual Basic 2010∙UserInfo:概述er 对象和“登录窗体”模板。
它实现了简单的自定义身份验证数据示例Data Samples与示例相关的数据库都存储在此。
∙CreateDB:演示如何从代码中执行SQL 语句以创建数据库、表、存储过程和视图∙CustomDataControls:演示如何在“数据源”窗口中使用您自己的控件∙DataComboBox:演示如何将数据绑定到ComboBox 控件和DataGridView 控件∙DataSearch:演示如何显示数据库内的数据子集∙DataValidation:演示数据集设计器,并使用PropertyChanged 事件验证用户输入∙LocalData:演示Visual Studio 的本地数据功能,包括“数据源”窗口、TableAdapter 和BindingSource 组件。
还演示如何在不必编写代码的情况下创建数据绑定窗体,以及如何连接到数据库文件∙ObjectBinding:演示如何将控件绑定到数据库组件以外的对象∙OCS:演示如何使用Microsoft Synchronization Services for 进行仅用于下载的两层同步∙Serialization:演示如何序列化和反序列化对象∙StoredProcedures:演示如何以编程方式通过 和Microsoft SQL Server 创建和使用存储过程∙XML:演示如何使用可公开XML 文档对象模型(或DOM)的XmlDocument 类来操作XML 数据语言示例这些示例演示各种Visual Basic 语言功能。
这些示例存储在Language Samples 目录中。
以下是专门针对Visual Basic 10 中的新功能的Visual Studio 2010 示例的列表*:∙AutoImplementedPropSample∙CollectionInitializersSample∙CovarianceSample∙ImplicitLCSamples∙StatementLambdasSample以下是语言示例的完整列表*:∙APICalls:演示调用Win32 API 函数以枚举和控制进程和窗口,以及查询和更改系统设置∙arrays:创建Integer 和Object 值的数组,并对数组进行排序和搜索∙AutoImplementedPropSample:包含两个具有相似源代码的源文件,一个使用自动实现的属性,另一个使用现有的扩展属性语法∙CollectionInitializersSample:演示如何使用集合初始值设定项语法创建数组和集合∙CovarianceSample:演示在声明泛型接口类型参数时使用的协变/逆变功能以及“In”和“Out”关键字∙CustomExceptions:演示自定义异常和全局异常处理∙DateTime:演示DateTime 和TimeSpan 方法的工作方式∙FileSystem:演示如何使用FileSystem 方法∙Generics:演示如何创建各种泛型集合以及如何操作它们∙ImplicitLCSamples:此示例包含两个具有相似源代码的源文件,这两个文件分别使用隐式和显式行继续符∙StatementLambdasSample:通过lambda 语句,可以用其他过程中的多个语句来声明过程∙StringFormatting:演示如何使用各种特定于区域性的标准及自定义格式代码将数字值、日期/时间值和枚举值显示为字符串∙Strings:演示如何使用String 方法∙TryCatch:演示如何使用Try...Catch...Finally 在应用程序中处理异常∙VBLanguage:突出显示一些Visual Basic 语言功能,包括泛型、运算符重载和Using 关键字∙VBOOP:演示可用于面向对象编程的选项∙XMLComments:演示Visual Basic 的XML 注释功能LINQ 示例LINQ 示例存储在Language Samples\LINQ Samples\ 目录中∙DynamicQuery:用于在运行时创建LINQ 查询的代码∙ExpressionTreeVisualizer:查看表达式树∙LinqToNorthwind:有关如何使用LINQ To SQL 查询数据库的基本示例∙LinqToXMLDatabinding:将LINQ to XML 代码绑定到WPF 控件∙LinqToXMLIntro:LINQ to XML 使用入门∙ObjectDumper:用于在文本模式下将来自LINQ 查询的输出写入到屏幕的实用工具∙Reflector:通过反射API,使用LINQ 来对代码中的对象执行正确查询∙Rss Aggregator:此示例可充当聚合多个RSS 源的微型Web 服务器∙SampleQueries:此示例是最重要的示例,其中包含约500 个有关如何在LINQ to Objects、LINQ to SQL、LINQ to XML 和LINQ to DataSet 中使用每个查询运算符的示例∙SimpleLambdas:几个有关如何编写和使用lambda 表达式的示例∙WinFormsDataBinding:了解如何在Windows 窗体中使用网格显示LINQ 查询。
此示例包含一个一对多查询示例∙XQuery:另一个简单的LINQ to XML 示例查询。
此示例演示了编写LINQ to XML 查询所需的最少代码安全示例Security Samples 目录中存储了一个安全示例。
∙Security:此示例演示如何通过权限类和权限特性来修改安全权限服务器组件示例可以在Server Components Samples 目录中找到多个与服务器相关的示例∙COMPort:演示如何控制通信(COM) 端口∙EventLog:演示如何创建和删除事件日志,以及如何使用EventLog 组件和My.Application.Log 对象对系统事件日志和自定义事件日志进行读写操作∙MessageQueue:演示如何从Windows 窗体应用程序发送和接收消息对列消息o MSMQCliento MSMQListener∙PerfCounters:演示如何对性能计数器进行读写操作,以跟踪操作系统和.NET Framework 应用程序的性能∙ProcessClass:Process 类用于执行各种任务,如命令行处理和列出有关当前正在运行的进程的信息∙ProcessViewer:通过调用GetProcesses 方法将当前计算机上的进程将显示在ListView 控件中∙ServiceManager:演示如何使用System.ServiceProcess 命名空间控制Windows 服务∙WMI:演示如何使用System.Management 命令空间中的对象访问Windows Management Instrumentation (WMI) 和查询系统信息,如操作系统名称、版本、制造商和计算机名称TabletPC 示例可以在TabletPC Samples 目录中找到Tablet 个人计算机示例∙BackOfPenErase:演示如何响应数字化仪触笔背面的橡皮擦∙ContextEnabledForm:演示Microsoft Windows XP Tablet PC Edition 2005 的区分上下文功能∙DrawingAttributes:演示对控制绘制墨迹视觉样式的特性(包括大小、形状、颜色和位置)进行操作的常用方式∙EnablingGestures:演示Windows XP Tablet PC Edition 2005 中对笔势的系统识别∙InkEnabledTextBox:演示Tablet PC 上可用的文本识别选项∙PowerAware:演示一些可以用于管理计算机电源状态的类∙SimpleTextRecognition:演示可以用于设置文本识别的内置识别器∙SpeechRecognition:演示语音API 的功能WCF 示例可以在WCF Samples 目录中找到Windows Communication Foundation 示例。
∙Chat:演示如何使用PeerChannel 实现多方聊天应用程序。
一个聊天应用程序的任何实例发送的消息可由其他所有实例接收∙Predictor:演示Active Server Methods (ASMX) 和Windows Communication Foundation (WCF) 技术之间的差异∙WindowsForms:演示一个服务,该服务实现的协定定义一种请求和答复通信模式Winforms 示例可以在Winforms Samples 目录中找到Windows 窗体示例。