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How do I delete a file which was last modified yesterday or before ?

I'm using the following code to delete a file, but I need to modify it to just delete a file if it was last modified yesterday or before. So not if todays date.

Dim sqlfile As DirectoryInfo = New DirectoryInfo(System.IO.Path.GetDirectoryName( _
               System.Reflection.Assembly.GetEntryAssembly.Location.ToString()) & "\") 

            Try : File.Delete(sqlfile.FullName & System.Reflection.Assembly.GetExecutingAssembly.GetName.Name & "PossSQLErr.txt") : Catch ex As Exception : LogError(ex, "MAIN-3a") : End Try

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mindwarpltd
Asked:
mindwarpltd
3 Solutions
 
Akin DeluI’m a software engineer, tech enthusiast and UI/UX lover. Commented:
       dim flinfo as New System.IO.FileInfo("filename")
        dim dt as DateTime = flinfo.LastWriteTime
        if DateTime.Now.Year >= dt.Year and DateTime.Now.Month >= dt.Month then
                dim daydiff as int = DateTime.Now.Day - dt.Day
                if daydiff >= 1 and daydiff < 2 then
                    System.IO.File.Delete("filename");
                end if
        end if
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Meir RivkinFull stack Software EngineerCommented:
here you go

Dim sqlfile As DirectoryInfo = New DirectoryInfo(System.IO.Path.GetDirectoryName( _
               System.Reflection.Assembly.GetEntryAssembly.Location.ToString()) & "\")

        Dim fi As FileInfo = New FileInfo(sqlfile.FullName & System.Reflection.Assembly.GetExecutingAssembly.GetName.Name & "PossSQLErr.txt")

'check if exists and last modified time is equal or bigger than 1
        If fi.Exists And DateDiff(DateInterval.Day, DateTime.Now, fi.LastWriteTime) >= 1 Then
            Try
                fi.Delete()
            Catch ex As Exception

            End Try

        End If

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käµfm³d 👽Commented:
It should be as simple as:
System.IO.FileInfo fi = new System.IO.FileInfo("filename");

if (DateTime.Now.Subtract(fi.LastWriteTime).TotalDays > 0) fi.Delete(); // == 0 means we're in the same day

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Meir RivkinFull stack Software EngineerCommented:
@kaufmed

which is the same as my post without the exception handling and the file validation.
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käµfm³d 👽Commented:
Except that you're using vb6 style functions and I'm using the .NET OO-centric functions  ;)
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Meir RivkinFull stack Software EngineerCommented:
that's true.
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mindwarpltdAuthor Commented:
@kaufmed I also said vb.net
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