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DesignerProperties.IsInDesignMode Attached Property

Gets or sets whether a DependencyObject is running in the context of a designer.

Namespace:  System.ComponentModel
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: Not mapped to an xmlns.

See GetIsInDesignMode, SetIsInDesignMode
<object DesignerProperties.IsInDesignMode="bool" .../>

Property Value

Type: System.Boolean
A Boolean that indicates whether a DependencyObject is running in the context of a designer.

Component and control developers may use this property to perform different logic when running in the context of a designer than they would when running in an application.

Designers may change the value of this property to move a control from design mode to run mode and back. Components that make changes to their state based on the value of this property should override the virtual OnPropertyChanged method and update their state if their IsInDesignMode property value changes.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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