问题
I am creating a custom control by deriving TextBlock, my intention is to do some custom rendering based on some dependency properties. However the OnRender method is sealed on TextBlock. Although I can get my work done by overriding OnRenderSizeChanged, this is not correct. Any ideas on how can i do it the right way?
Thanks in advance.
回答1:
In WPF you normally work with styles or Control templates to change the appearance of a control. You can download templates for all controls from Microsoft and play around with them.
Read more here:
http://msdn.microsoft.com/en-us/library/system.windows.controls.controltemplate(v=VS.100).aspx
来源：https://stackoverflow.com/questions/2735387/wpf-textblock-cannot-override-onrender