DesignMode DesignMode DesignMode DesignMode DesignMode Class


Enables you to detect whether your app is in design mode in a visual designer.

public : static class DesignMode
static struct winrt::Windows::ApplicationModel::DesignMode
public static class DesignMode
Public Shared Class DesignMode
// This class does not provide a public constructor.

Windows 10 requirements

Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)


Visual designers like Microsoft Visual Studio and Blend for Microsoft Visual Studio 2013 enable you to build UI for UWP app by editing activated instances of your custom types. Design tools create an instance of your app in a special authoring mode, known as design mode. When your app runs in design mode, it can execute special logic that enables coordination with the visual designer.

Version history

Windows version SDK version Value added
1709 16299 DesignMode2Enabled


DesignMode2Enabled DesignMode2Enabled DesignMode2Enabled DesignMode2Enabled DesignMode2Enabled

Used to enable or disable user code inside a XAML designer that targets the Windows 10 Fall Creators Update SDK, or later.

DesignModeEnabled DesignModeEnabled DesignModeEnabled DesignModeEnabled DesignModeEnabled

Gets a value that indicates whether the process is running in design mode.