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WebBrowser.EncryptionLevelChanged Event

Occurs when the WebBrowser control navigates to or away from a Web site that uses encryption.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

[<BrowsableAttribute(false)>]
member EncryptionLevelChanged : IEvent<EventHandler,
    EventArgs>

You can use this event with the EncryptionLevel property to implement an indicator in the user interface of your application similar to the lock icon in Internet Explorer. In a handler for this event, check the value of the EncryptionLevel property to determine whether you should hide or display the indicator. To mimic the behavior of the lock icon in Internet Explorer, you can also provide a ToolTip that shows the encryption level when the mouse pointer hovers over the indicator.

For more information about handling events, see Handling and Raising Events.

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the EncryptionLevelChanged event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox.Show with Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of type WebBrowser named WebBrowser1. Then ensure that the event handler is associated with the EncryptionLevelChanged event.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.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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