For Each prop In entity.Details.Properties.All().  
        OfType(Of Microsoft.LightSwitch.Details.IEntityStorageProperty)()  
  
        If prop.Name <> "Id" Then   
            If Not Object.Equals(prop.Value, prop.OriginalValue) Then   
                oldvals += String.Format("{0}{1}: {2}", vbCrLf, prop.Name, prop.OriginalValue)  
                newvals += String.Format("{0}{1}: {2}", vbCrLf, prop.Name, prop.Value)  
            End If   
        End If   
   Next   

foreach (var prop in entity.Details.Properties.All().OfType<Microsoft.LightSwitch.Details.IEntityStorageProperty>())
{
     
    if (prop.Name != "Id")
    {
        if (!object.Equals(prop.Value, prop.OriginalValue))
        {
            oldvals += string.Format("{0}{1}: {2}", "\r\n", prop.Name, prop.OriginalValue);
            newvals += string.Format("{0}{1}: {2}", "\r\n", prop.Name, prop.Value);
        }
    }
}