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DesignerEventArgs Class

Provides data for the DesignerCreated and DesignerDisposed events.

Namespace:  System.ComponentModel.Design
Assembly:  System (in System.dll)

[PermissionSetAttribute(SecurityAction.InheritanceDemand, Name = "FullTrust")]
[PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")]
[HostProtectionAttribute(SecurityAction.LinkDemand, SharedState = true)]
public class DesignerEventArgs : EventArgs


The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: SharedState. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

The DesignerCreated and DesignerDisposed events are raised when a document is created or disposed of.

The following example demonstrates creating a DesignerEventArgs.

// This example method creates a DesignerEventArgs using the specified designer host. 
// Typically, this type of event args is created by the IDesignerEventService.   
public DesignerEventArgs CreateComponentEventArgs(IDesignerHost host)
    DesignerEventArgs args = new DesignerEventArgs(host);

    // The designer host of the created or disposed document:  args.Component 

    return args;


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0