WPF Codeplex Dashboarding BidirectionalDial

Question

BidirectionalDial tempGauge = new Dial360();

if (chp.DialType.Equals("360")) 
{
    tempGauge = new Dial360();
}
else if (chp.DialType.Equals("180"))
{
    tempGauge = new Dial180North();
}
else if (chp.DialType.Equals("90"))
{
    tempGauge = new Dial90SouthEast();
}

tempGauge.FontSize = GaugeDialProperty.getGaugeFontSize(chp.DialType, chp.MaxVal);

GetGaugeFontSize returns an integer but it is only applied to Dial360. It is not applyed to Dial180North and Dial90SouthEast and they use default font size. How can I solve this issue?

Solution:

            Grid dg = (Grid)tempGauge.Content;
            foreach (UIElement ui in dg.Children)
            {
                Type elementType = ui.GetType();
                if (elementType.FullName == "System.Windows.Controls.TextBlock")
                {
                    TextBlock tb = (TextBlock)ui;
                    tb.FontSize = fontSize;
                }
            }