The Font property is an ambient property. An ambient property is a control property that, if not set, is retrieved from the parent control. For example, a Button will have the same BackColor as its parent Form by default. For more information about ambient properties, see the AmbientProperties class or the Control class overview.
Because the Font is immutable (meaning that you cannot adjust any of its properties), you can only assign the Font property a new Font. However, you can base the new font on the existing font.
The following is an example of how to adjust the existing font to make it bold:
myControl.Font = new Font(myControl.Font,
myControl.Font.Style | FontStyle.Bold);
Notes to Inheritors:
When overriding the Font property in a derived class, use the base class's Font property to extend the base implementation. Otherwise, you must provide all the implementation. You are not required to override both the get and set accessors of the Font property; you can override only one if needed.
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.