Free Calendar/Schedular Control in WPF

Is there any free WPF calenda开发者_StackOverflow中文版r/Schedular /appointment control available , I have searched on google but couldn't find one.

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I think this whould be a good choice - http://wpfcalendarcontrol.codeplex.com/

And in codeproject you can find this one http://www.codeproject.com/KB/WPF/Quick_WPf_MonthView_Cal.aspx