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Editorial Team
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Asked: 2026-06-18T15:24:22+00:00

I want to create a control that inherits from TextBox, which has an attribute

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I want to create a control that inherits from TextBox, which has an attribute called ‘Filler’. I have the basic control created (named GhostBox), so I can load it in to a sample project and see it on the designer, but I don’t know how to create custom XAML parameters (such as Text and Width which already exist). Please explain how to add these?

Example: 

<ghostbox:GhostBox Name="ghostBox1" Text=""  Height="72" HorizontalAlignment="Left" VerticalAlignment="Top" Width="460" Margin="0,80,0,0" Filler="Filler Text"/>

As you can see at the end of the tag, there is a Filler attribute. That’s what I want to add, if I haven’t made it clear enough.
Thanks.

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1 Answer

  1. Editorial Team

    They are called Dependency Properties. Have a read of this MSDN article about them.

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