VB.net 的习惯代码

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VB.net中相关的使用从VB6转变过来

 

• 创建固定指定空间长度的字符串

VB6 dim str_tmp as string(1024)

VB.net中我是这样搞的

dim chr_tmp(1024) as char

dim str_tmp as string

str_tmp=chr_tmp

检查str_tmp的长度就是1025（str_tmp.lenth）

 

• 获取当前APP的路径

VB6   app.path

vb.net中是  Environment.CurrentDirectory

 

• 创建文件夹和文件（VB.NET）

    Imports System.IO

    Private Sub Create_Dir(Dir_Path As String)

        Directory.CreateDirectory(Dir_Path)

    End Sub

    Private Sub Create_File(Full_Filename As String)

        Dim tempdir() As String

        Dim dirCreated As String

        Dim count1 As Integer

        Dim str_FileName As String

        str_FileName = Trim(Full_Filename)

        If Mid(str_FileName, str_FileName.Length - 1, 1) = "\" Then  'VB6中用Right在VB.NET中已经不好用了

            Call Create_Dir(str_FileName)

            Exit Sub

        End If

        tempdir = Split(str_FileName, "\")

        dirCreated = ""

        For count1 = 0 To UBound(tempdir) - 1

            If tempdir(count1) <> "" Then

                dirCreated = dirCreated & tempdir(count1) & "\"

            End If

        Next

        Call Create_Dir(dirCreated)

        If File.Exists(Full_Filename) = False Then

            Dim fs As FileStream = File.Create(Full_Filename)

            fs.Close()

        End If

    End Sub