Is there a Up/Down Combo button in WPF control?

In my WPF C# application, I want to add a Up / Down (开发者_如何学Pythonor Plus / Minus) button to increment or decrement an integer in a TextBox. Is there such a control or do I need to write and position a TextBox and two Buttons?

Microsoft has a "NumericUpDown Custom Control with Theme and UI Automation Support Sample"

Other useful links:

• http://wpftoolkit.codeplex.com/wikipage?title=NumericUpDown&referringTitle=Home
• http://www.codeproject.com/KB/WPF/NumericUpDownTextBox.aspx
• http://code.google.com/p/phoenix-control-library/