| RequestContext Class |
A request context provides request handling for a set of related browser objects.
A request context is specified when creating a new browser object via the CefBrowserHost
static factory methods. Browser objects with different request contexts will never be
hosted in the same render process. Browser objects with the same request context may or
may not be hosted in the same render process depending on the process model.
Browser objects created indirectly via the JavaScript window.open function or targeted
links will share the same render process and the same request context as the source browser.
When running in single-process mode there is only a single render process (the main process)
and so all browsers created in single-process mode will share the same request context.
This will be the first request context passed into a CefBrowserHost static factory method
and all other request context objects will be ignored.
Inheritance HierarchyNamespace: CefSharp
Assembly: CefSharp.Core (in CefSharp.Core.dll) Version: 55.0.0.0
SyntaxThe RequestContext type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | RequestContext | Initializes a new instance of the RequestContext class |
| RequestContext(IRequestContextHandler) | Initializes a new instance of the RequestContext class |
| RequestContext(RequestContextSettings) | Initializes a new instance of the RequestContext class |
| RequestContext(RequestContextSettings, IRequestContextHandler) | Initializes a new instance of the RequestContext class |
Properties| Name | Description | |
|---|---|---|
 | CachePath |
Returns the cache path for this object. If empty an "incognito mode"
in-memory cache is being used.
|
| IsGlobal |
Returns true if this object is the global context. The global context is
used by default when creating a browser or URL request with a NULL context
argument.
|
Methods| Name | Description | |
|---|---|---|
| CanSetPreference |
Returns true if the preference with the specified name can be modified
using SetPreference. As one example preferences set via the command-line
usually cannot be modified. This method must be called on the CEF UI thread.
|
| ClearCertificateExceptions |
Clears all certificate exceptions that were added as part of handling
[!:IRequestHandler.OnCertificateError]. If you call this it is
recommended that you also call [!:IRequestContext.CloseAllConnections] or you risk not
being prompted again for server certificates if you reconnect quickly.
|
| ClearSchemeHandlerFactories |
Clear all registered scheme handler factories.
|
| CloseAllConnections |
Clears all active and idle connections that Chromium currently has.
This is only recommended if you have released all other CEF objects but
don't yet want to call Cef.Shutdown().
|
 | CreateContext |
Creates a new context object that shares storage with other and uses an
optional handler.
|
| Dispose | Releases all resources used by the RequestContext |
 | Dispose(Boolean) | Releases the unmanaged resources used by the RequestContext and optionally releases the managed resources |
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| Finalize | (Overrides ObjectFinalize.) |
| GetAllPreferences |
Returns all preferences as a dictionary. The returned
object contains a copy of the underlying preference values and
modifications to the returned object will not modify the underlying
preference values. This method must be called on the browser process UI
thread.
|
| GetDefaultCookieManager |
Returns the default cookie manager for this object. This will be the global
cookie manager if this object is the global request context. Otherwise,
this will be the default cookie manager used when this request context does
not receive a value via IRequestContextHandler.GetCookieManager().
|
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetPreference |
Returns the value for the preference with the specified name. Returns
NULL if the preference does not exist. The returned object contains a copy
of the underlying preference value and modifications to the returned object
will not modify the underlying preference value. This method must be called
on the CEF UI thread.
|
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| HasPreference |
Returns true if a preference with the specified name exists. This method
must be called on the CEF UI thread.
|
| IsSame |
Returns true if this object is pointing to the same context object.
|
| IsSharingWith |
Returns true if this object is sharing the same storage as the specified context.
|
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| PurgePluginListCache |
Tells all renderer processes associated with this context to throw away
their plugin list cache. If reloadPages is true they will also reload
all pages with plugins. RequestContextHandler.OnBeforePluginLoad may
be called to rebuild the plugin list cache.
|
| RegisterSchemeHandlerFactory |
Register a scheme handler factory for the specified schemeName and optional domainName.
An empty domainName value for a standard scheme will cause the factory to match all domain
names. The domainName value will be ignored for non-standard schemes. If schemeName is
a built-in scheme and no handler is returned by factory then the built-in scheme handler
factory will be called. If schemeName is a custom scheme then you must also implement the
CefApp::OnRegisterCustomSchemes() method in all processes. This function may be called multiple
times to change or remove the factory that matches the specified schemeName and optional
domainName.
|
| ResolveHostAsync |
Attempts to resolve origin to a list of associated IP addresses.
|
| ResolveHostCached | |
| SetPreference |
Set the value associated with preference name. If value is null the
preference will be restored to its default value. If setting the preference
fails then error will be populated with a detailed description of the
problem. This method must be called on the CEF UI thread.
Preferences set via the command-line usually cannot be modified.
|
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Operators
See Also