#12 – Markup and Code Behind

WPF applications are made up of markup (XAML) and code-behind (managed code).  The markup defines the layout and appearance of the application, whereas the code-behind defines the behavior.

WPF markup is written using XAML, a declarative markup language based on XML.  The XAML lists the controls that make up the application, how they are related, and how they appear.

        <Button Content="Save" Height="23" Name="btnSave" Width="75" Click="btnSave_Click" />
        <Button Content="Load" Height="23" Name="btnLoad" Width="75" Click="btnLoad_Click" />

The code-behind is the part of your application that exists as managed code (e.g. C#) and describes the behavior of the application at runtime.

private void btnSave_Click(object sender, RoutedEventArgs e)
    // Do actual work of saving file here

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

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