#283 – A Window Can Have Only a Single Child Element

In WPF, a Window can have only a single child element.  Window inherits from ContentControl, which is a control that contains a single child element, referenced by its Content property.

Your window might have a single simple child control, like a Button.

	<Button Content="Big Daddy Button"/>

Since having a single control in your application is not very useful, it’s more common that the single child control of a Window is a container control like StackPanel, which in turn can contain multiple child elements.

		<Label Content="You can enter your name here:"/>
		<TextBox />
		<Button Content="Push to Continue"/>


About Sean
Software developer in the Twin Cities area, passionate about software development and sailing.

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