![]() Alternatively, we can find the smallest file. With this function, we can determine the largest file in a directory. The last method in its extended form, in case it's preferable: Private Function TotalFoldersFileSize(folder As String, pattern As String) As ULongĭim folderInfo = New DirectoryInfo(folder).GetFiles(pattern, SearchOption. Use the GetFiles method, supplying the name and path of the directory you want to search and specifying the pattern. the vb.net way to get filesize is like this: New FileInfo (filepath).Length Since you will be dealing with a list of files, you need to either use LINQ or a ForEach to grab the file you want out of the list, or hardcode the first item. In VB.NET, we can use Directory.GetFiles and OrderByDescending along with the FileInfo type to sort them from largest to smallest. GetFiles(pattern, SearchOption.AllDirectories).Sum(Function(f) CULng(f.Length))) Private Function TotalFoldersFileSize(folder As String, pattern As String) As ULong Helper and worker methods: Private Sub SetControlTextToFileSize(ctrl As Control, folderPath As String, filter As String)ĭim symbols As String() = B" SetControlTextToFileSize(label1, "C:\SomePath", "*.ts") 1 Sign in to vote Reference 'Microsoft Shell Controls and Automation' on the COM tab and import shell32: Dim Sh As New Shell Dim FI As FolderItem2 DirectCast (Sh.NameSpace ( 'C:Temp' ).Items ().Item ( 'Green Sea Turtle.jpg' ), FolderItem2) Dim WidthXHeight As String DirectCast (FI. You can simplify a couple of things and use a method that accepts all the parameters needed to perform this action: a Control that will show the result, the Path to parse and the Filter to set ( "*.ts" here, as this was the example you posted). This class allows to collect more parameters related to the search to perform. This value is a Long, but can usually be converted safely to an Integer. ![]() We then access the Length property to get a byte size of the file. We create a new FileInfo instance with a file name. ![]() StreamReader is ideal for looping over the lines in a file. VB.NET File Size: FileInfo Example Use the FileInfo type from the System.IO namespace to compute file sizes. We often employ a using-construct to create a StreamReader object. StreamReader is often the simplest way to read in a text file. Net Core 2.1 also has an EnumerationOptions class and a corresponding overload of GetFiles(). The System.IO namespace deals with files. You can use DirectoryInfo.GetFiles() directly, specifying a filter SearchOption.AllDirectories as option, so you'll parse all the sub-folders in the specified path.
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