The time now is PM. Copyright TechnologyAdvice. CodeGuru Home. Visual Basic. VB Forums. If this is your first visit, be sure to check out the FAQ by clicking the link above.
You may have to register or Login before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.
ReadToEnd ; Is there any difference between the two? They both seem to do the exact same thing. I am simply downloading html from a given URL, and might need to implement proxy settings in the future. There is also a WebClient class - probably the simplest to use of all the BCL classes designed to retrieve a resource from the Internet. HttpRequest , on the other hand represents a request for a resource in an ASP. NET application - this is the server side of a Request.
NET web application. Seems like it's all just about code design. To use WebRequest we need to Create , which will return a descendant class. And as long as we use its instance, it will be acting just as an wrapper to the descendant class. Here's a remark from the docs :. WebRequest is the abstract base class for the. Because the WebRequest class is an abstract class, the actual behavior of WebRequest instances at run time is determined by the descendant class returned by Create method.
For more information about default values and exceptions, see the documentation for the descendant classes, such as HttpWebRequest and FileWebRequest.
I only got to know this now because, while also looking for the answer which I didn't know 1h ago , I got this from forums at codeguru and MSDN doc remarks , all thanks to google :. The HttpWebRequest class provides support for the properties and methods defined in WebRequest and for additional properties and methods that enable the user to interact directly with servers using HTTP. Do not use the HttpWebRequest constructor. Use the WebRequest.
Create method to initialize new HttpWebRequest objects. The GetResponse method makes a synchronous request to the resource specified in the RequestUri property and returns an HttpWebResponse that contains the response. Then there's a table there I won't quote here. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Net Assembly: System. Important We don't recommend that you use HttpWebRequest for new development. Note HttpWebRequest is registered automatically.
Note The Framework caches SSL sessions as they are created and attempts to reuse a cached session for a new request, if possible. Note For security reasons, cookies are disabled by default. Is this page helpful? Yes No. Any additional feedback? Skip Submit. Set by the Accept property. Set by the Connection property, KeepAlive property. Set by the ContentLength property. Set by the ContentType property.
Set by the Expect property. Set by the IfModifiedSince property. Set by the AddRange method. Set by the Referer property. Set by the TransferEncoding property the SendChunked property must be true. Set by the UserAgent property.
HttpWebRequest Uri. Gets or sets a value that indicates whether the request should follow redirection responses. Gets or sets a value that indicates whether to buffer the received from the Internet resource. Gets or sets a value that indicates whether to buffer the data sent to the Internet resource. Inherited from WebRequest. Gets or sets the cache policy for this request. Gets or sets the collection of security certificates that are associated with this request.
Gets a value that indicates whether a response has been received from an Internet resource. Gets or sets the impersonation level for the current request. Gets or sets the maximum number of redirects that the request follows.
Gets or sets a value that indicates whether to pipeline the request to the Internet resource. Gets or sets a value that indicates whether to send an Authorization header with the request. When overridden in a descendant class, indicates whether to pre-authenticate the request.
Gets or sets a time-out in milliseconds when writing to or reading from a stream. Gets or sets a value that indicates whether to send data in segments to the Internet resource. Gets or sets the length of time, in milliseconds, before the request times out. AddRange Int AddRange Int32, Int AddRange Int64, Int AddRange String, Int AddRange String, Int32, Int
0コメント