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DialogPage.OnActivate Method

Handles Windows Activate messages from the Visual Studio environment.

Namespace:  Microsoft.VisualStudio.Shell
Assembly:  Microsoft.VisualStudio.Shell.11.0 (in Microsoft.VisualStudio.Shell.11.0.dll)

Syntax

'Declaration
Protected Overridable Sub OnActivate ( _
    e As CancelEventArgs _
)
protected virtual void OnActivate(
    CancelEventArgs e
)
protected:
virtual void OnActivate(
    CancelEventArgs^ e
)
abstract OnActivate : 
        e:CancelEventArgs -> unit  
override OnActivate : 
        e:CancelEventArgs -> unit
protected function OnActivate(
    e : CancelEventArgs
)

Parameters

Remarks

This method is a handler for Windows events, and is not a managed delegate.

An Activate message is sent, and this method is called when the user interface of the dialog page is visible and receives focus.

The default implementation sets the dialog page's internal user interface state to active.

Because this state is used throughout the parent class, implementations should always call the base implementation of this method when overriding.

Examples

This example implementation of OnActivate first calls the base implementation of the method, and then refreshes user controls.

protected override void OnActivate(CancelEventArgs e) {
    base.OnActivate(e);
    Panel.OnActivate();   // we want to reload controls from toolbox...
}

.NET Framework Security

See Also

Reference

DialogPage Class

Microsoft.VisualStudio.Shell Namespace

CancelEventArgs

DialogPage

Other Resources

Options Pages

Toolbox (Visual Studio SDK)

State Persistence and the Visual Studio IDE