Expression evaluator using data table

Hi I found a neat little way to get the value of an expression using a data table here the code below.
Hope it handy for someone. Comments and suggestions welcome.

vbnet Code:

Option Explicit On
 
Public Class Form1
 
    Private Function EvalIt(ByVal expression As String) As Decimal
        Dim dt As New DataTable()
        Dim RetVal As Decimal = 0
 
        'Check for vaild string
        If Not String.IsNullOrEmpty(expression) Then
            'Use compute to get expression value.
            RetVal = dt.Compute(expression, vbNullString)
        End If
 
        'Return value.
        Return RetVal
 
    End Function
 
    Private Sub cmdGo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdGo.Click
        'Return expresion sum
        Dim buff As String = "5+5 * (10+6) * 2"
 
        MessageBox.Show(buff & "=" & EvalIt(buff), "Eval-Demo",
                        MessageBoxButtons.OK, MessageBoxIcon.Information)
    End Sub
End Class