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Question to VB gurus
Message
De
22/05/2015 13:26:27
 
 
À
22/05/2015 13:17:58
Information générale
Forum:
ASP.NET
Catégorie:
Autre
Versions des environnements
Visual FoxPro:
VFP 9
OS:
Windows Server 2012
Network:
Windows 2008 Server
Database:
MS SQL Server
Application:
Web
Divers
Thread ID:
01620102
Message ID:
01620103
Vues:
76
>cn someon tell me to do this vfp stuff in vb.net:
>
>
>
>x2 = strtran(x1,chr(10)+"88," , " ")
>
>
>
>
>my .net guy here says it cannot be done???
    ' Equivalent of VFP StrTran()
    ' expC1 String
    ' expC2 Search for specific character
    ' expC3 Replace
    Public Function StrTran(ByVal tcSearchIn As String, ByVal tcSearchFor As String, _
     ByVal tcReplace As String) As String
        Return tcSearchIn.Replace(tcSearchFor, tcReplace)
    End Function

    ' Equivalent of VFP StrTran()
    ' This one should not be called in intensive way as this could cause and Out of memory issue.
    ' It is supported here for processing large chuncks of text such as a big memo field where you would have
    ' a large number of calls to make to replace some strings. In that particular situation, it would be faster than
    ' StrTran(). This has to be analysis on a per basis usage.
    ' expC1 String
    ' expC2 Search for specific character
    ' expC3 Replace
    Public Function StrTranStringBuilder(ByVal tcSearchIn As String, ByVal tcSearchFor As String, _
     ByVal tcReplace As String) As String
        Dim loStringBuilder As StringBuilder = New StringBuilder(tcSearchIn)
        Return loStringBuilder.Replace(tcSearchFor, tcReplace).ToString()
    End Function

    ' Equivalent of VFP StrTran() with case insensitive
    ' expC1 String
    ' expC2 Search for specific character
    ' expC3 Replace
    Public Function StrTranCaseInsensitive(ByVal tcSearchIn As String, ByVal tcSearchFor As String, _
     ByVal tcReplace As String) As String
        Dim lnLength As Integer = tcSearchIn.Length
        Dim lnLengthSearchFor As Integer = tcSearchFor.Length
        Dim lnLocation As Integer = 0
        Dim loStringBuilder As New StringBuilder(lnLength)

        ' Check inputs
        If lnLength = 0 Or lnLengthSearchFor = 0 Or lnLengthSearchFor > lnLength Then
            Return tcSearchIn
        End If

        While lnLocation + lnLengthSearchFor <= lnLength

            If String.Compare(tcSearchIn, lnLocation, tcSearchFor, 0, lnLengthSearchFor, True) = 0 Then

                ' Add the replaced string
                loStringBuilder.Append(tcReplace)

                lnLocation = lnLocation + lnLengthSearchFor
            Else

                ' Advance one character
                loStringBuilder.Append(tcSearchIn, lnLocation, 1)
                lnLocation = lnLocation + 1

            End If

        End While

        ' Append remaining characters
        loStringBuilder.Append(tcSearchIn, lnLocation, lnLength - lnLocation)

        Return loStringBuilder.ToString()
    End Function
Michel Fournier
Level Extreme Inc.
Designer, architect, owner of the Level Extreme Platform
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