Question

I have got table named FILELISTS

Table Name - Filelists
Field - FileNames

Data Value

1. File1.txt
2. File2.csv
3. File3*.csv

I’m struggling to write the code, as per above if it has a file name (like file1.txt and file2.txt) it needs to copy from source to destination. If file name is pattern (like File3*.csv) then copy all files that matches this pattern from source to destination.

I’m enumerating through above row in Vb.net using data reader.

Answer 1

You can use Directory.EnumerateFiles and File.Copy, for example:

var filePatterns = database.GetFileNamePattern(); // your method that returns the list of files
// assuming you've stored the source- and dest.-directories in the app-settings
string sourceFolder = Properties.Settings.Default.SourceFolder;      
string destFolder = Properties.Settings.Default.DestinationFolder;
foreach (string pattern in filePatterns)
{
    var files = Directory.EnumerateFiles(
        sourceFolder,
        pattern,
        SearchOption.TopDirectoryOnly);
    foreach (string file in files)
    {
        File.Copy(file, Path.Combine(destFolder, Path.GetFileName(file)), true);
    }
}

Edit: Sorry, here the VB.NET version:

' your method that returns the list of files:
Dim filePatterns = database.GetFileNamePattern()  
' assuming you've stored the source- and dest.-directories in the app-settings
Dim sourceFolder As String = My.Settings.SourceFolder
Dim destFolder As String = My.Settings.DestinationFolder
For Each pattern As String In filePatterns
    Dim files = Directory.EnumerateFiles(sourceFolder, pattern, SearchOption.TopDirectoryOnly)
    For Each file As String In files
       IO.File.Copy(file, IO.Path.Combine(destFolder, IO.Path.GetFileName(file)), True)
    Next
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