How to: Determine a File's Size in Visual Basic
The My.Computer.FileSystem.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.
Note
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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.")
See Also
Tasks
How to: Determine a File's Attributes in Visual Basic
Reference
My.Computer.FileSystem.GetFileInfo Method