Gets a value indicating the encryption method used by the document currently displayed in the WebBrowser control.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
You can use this property with the EncryptionLevelChanged event to implement an indicator in the user interface of your application similar to the lock icon in Internet Explorer. When the current document is not encrypted, the value of this property is WebBrowserEncryptionLevel.Insecure. When the WebBrowser control displays a Web page containing multiple frames with content of different encryption levels, the value of this property is WebBrowserEncryptionLevel.Mixed. When the encryption level is unknown, the value of this property is WebBrowserEncryptionLevel.Unknown. Other values indicate the type of encryption present. To mimic the behavior of the lock icon in Internet Explorer, display the encryption type in a ToolTip that appears when the mouse pointer hovers over the indicator.
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.