This should work:
var myType = typeof(MyClass);
var n = myType.Namespace;
Write out to the console:
Type myType = typeof(MyClass);
Console.WriteLine("Namespace: {0}.", myType.Namespace);
Setting a WinForm label:
Type myType = typeof(MyClass);
namespaceLabel.Text = myType.Namespace;
Or create a method in the relevant class and use anywhere:
public string GetThisNamespace()
{
return GetType().Namespace;
}