Get Name of Variable using Reflection

Question

Is there a way to get the variable name?  I assume I'd have to use Reflection.  Here's an example of what I mean.
Dim tileCount As Integer
' get tileCount variable name here
Debug.Print("tileCount")
Ryan

Answer 1

I need to validate a variable.  If the variable isn't valid I want to throw an ArgumentOutOfRangeException.
Variable names are internal to your program.  They don't actually exist as part of your executable code, but it is possible with reflection to look back into the source code and find certain information.   But it is not possible
to identify a variable by its value. However, you should not be using variable names to identify your objects.
If you create a class for your values then you can build a IsValid test for the value field of the class, and return information about the class instance.  For example:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim thisTile As New Tile With {.Height = 7, .Name = "Fred"}
If Not thisTile.IsValidHeight Then
Throw New ArgumentOutOfRangeException("Instance", thisTile.Name, String.Format("{0} is not a valid tile height.", thisTile.Name))
End If
End Sub
End Class
Public Class Tile
Public Name As String
Public Height As Integer
Public Function IsValidHeight() As Boolean
Dim myArray() As Integer = {3, 4, 6, 7}
If Not myArray.Contains(Me.Height) Then
Return True
Else
Return False
End If
End Function
End Class
Great idea! :)
Still lost in code, just at a little higher level.