WebBrowser.IsOffline Property

Gets a value indicating whether the WebBrowser control is in offline mode.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public bool IsOffline { get; }
/** @property */
public boolean get_IsOffline ()

public function get IsOffline () : boolean

Not applicable.

Property Value

true if the WebBrowser control is in offline mode; otherwise, false.

Exception typeCondition


This WebBrowser instance is no longer valid.


A reference to an implementation of the IWebBrowser2 interface could not be retrieved from the underlying ActiveX WebBrowser control.

In offline mode, the WebBrowser control is forced to load Web pages from the local cache rather than downloading them.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

.NET Compact Framework

Supported in: 2.0