How to: Determine a File's Size in Visual Basic

How to: Determine a File's Size in Visual Basic

The GetFileInfo method can be used to get a FileInfo object, which contains information about the specified file.

You can use the Length property to determine the size of the file in bytes.

NoteNote

Your computer might show different names or locations for some of the Visual Studio user interface elements in the following instructions. The Visual Studio edition that you have and the settings that you use determine these elements. For more information, see Visual Studio Settings.

To determine a file's size

  • Use the GetFileInfo method to return a FileInfo object for the file, which can be queried for information. This example gets a FileInfo object for Testfile.txt and uses the Length property to display the size of the file in bytes.

    
    Dim infoReader As System.IO.FileInfo
    infoReader = My.Computer.FileSystem.GetFileInfo("C:\testfile.txt")
    MsgBox("File is " & infoReader.Length & " bytes.")
    
    
    

Community Additions

ADD
Show:
© 2016 Microsoft