How to check file location in window mobile 6 professional vb.net - vb.net

Question

i face check txt file location problem in window mobile 6 professional.
code testing for window form
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim FILE_NAME As String = "c:\Users\Chee Kang\Desktop\New folder (2)\testFile.txt"
If System.IO.File.Exists(FILE_NAME) = True Then
MessageBox.Show("File already Exist")
Else
MsgBox("File Does Not Exist")
End If
End Sub
coding above show me the correct answer :File already Exist (i pasted the file there before i start my program)
but when i apply the same thing in window mobile 6 professional, it give me the wrong answer "File Does Not Exist" although i pasted the file there before i start my program.
i try to figure out the reason, but so far i can't get any correct reason.
Kindly advise.
thanks

Answer 1

Windows Mobile does not use drive letters.
Your path does not exist.

Answer 2

When we work with files on WinMo 6, we store and retrieve all files in directories relative to the installed application so that we don't have to worry about the WinMo directory structure.
To get the path to the installed app, you can use code similar to the following:
''' <summary>
''' Because the Windows Mobile doesn't have a current directory, this
''' method provides a way to get to the directory for this assembly.
''' </summary>
Public ReadOnly Property GetBaseDirectory() As String
Get
Dim sName As String = System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase
sName = IO.Path.GetDirectoryName(sName)
'
' Support for unit testing on the desktop. CodeBase returns a path with "file:\" at the start
' under Windows, but not under Windows CE. The code that uses this property expects
' the path without the file:\ at the start.
'
If Environment.OSVersion.Platform <> PlatformID.WinCE Then
If sName.StartsWith("file:\") Then
sName = sName.Remove(0, 6)
End If
End If
Return sName
End Get
End Property
Note that this code also supports unit testing on non-CE platforms. Once you get the base directory, you can use standard System.IO functionality to create directories, save files, and access files.
Other than the above code, much of our file interaction logic is the exact same code for WinMo and WinForms.