vb.net属性修改

VB.net中怎么通过代码对textbox中的font下的各个属性进行修改?

通过下面的方法进行修改：

TextBox1.ForeColor = Color.Red ?'前景色

VB.NET的简介

VB.net是微软最新平台技术,是.netframeworkSDK的一种语言.VB.net和VC#.net在功能上没有区别.编译以后生成的可执行文件被称为Assembly,即程序集.

VB.NET的特点

①真正成为面向对象以及支持继承性的语言.

VB.net的语言特点：

①代码托管.被托管的代码享受.netframework提供的安全保障和垃圾回收机制,但是这也同时表明,你的程序被框在Framework里面了.API变得不太方便.

VB.net如何提取system并修改文件安全属性?

将以下代码保存到模块中：

"GetPrivateProfileStringA" (ByVal lpApplicationName As String, _

ByVal lpKeyName As Any, _

ByVal lpDefault As String, _

ByVal lpReturnedString As String, _

ByVal nSize As Long, _

ByVal lpFileName As String) As Long

"WritePrivateProfileStringA" (ByVal lpApplicationName As String, _

ByVal lpKeyName As String, _

ByVal lpString As String, _

Public Function GetIniParam(NomFichier As String, NomSection As String, NomVariable As String) As String

Dim returnv As String

Dim mResultLen As Integer

mResultLen = GetPrivateProfileString(NomSection, NomVariable, "(Unassigned)", ReadString, Len(ReadString) - 1, NomFichier)

Dim Tempvalue As Variant

Dim Message As String

Message = "配置文件 " NomFichier " 不存在."

returnv = ""

Else

returnv = Left$(ReadString, InStr(ReadString, Chr$(0)) - 1)

End If

GetIniParam = returnv

End Function

Public Function WriteWinIniParam(NomDuIni As String, sLaSection As String, sNouvelleCle As String, sNouvelleValeur As String)

Dim iSucccess As Integer

iSucccess = WritePrivateProfileStringByKeyName(sLaSection, sNouvelleCle, sNouvelleValeur, NomDuIni)

If iSucccess = 0 Then

WriteWinIniParam = False

WriteWinIniParam = True

调用方法：

Call WriteWinIniParam(App.Path "\LiveUpdate.ini", "LiveUpdate", "AppName", txtAppName.Text)

txtFile.Text = GetIniParam(App.Path "\LiveUpdate.ini", "LiveUpdate", "FILES1")

VB.NET中,文件对话框（OpenFileDialog）显示某种设定的文件类型需要修改什么属性?

Filter 属性设置当前文件名筛选字符串,该字符串确定出现在对话框的"文件类型"框中的选项.

openFileDialog1.InitialDirectory = "c:\\" ;

openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*" ;

openFileDialog1.FilterIndex = 1 ; // 获取或设置文件对话框中当前选定筛选器的索引；

openFileDialog1.RestoreDirectory = true ;

对于每个筛选选项,筛选器字符串都包含筛选器说明,后接一垂直线条 (|) 和筛选器模式.不同筛选选项的字符串由垂直线条隔开.

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