C# download file from web server

HttpWebRequest class to download my website logo. Sometimes, there is a need for the client to supply some information to the web server in order to download a file. This can be a case when we want to control how files are downloaded. We can refer to every file in our web server with a unique id and write a server script to serve the respective file based on the id received from the client.

Thank you. Microsoft makes no warranties, express or implied, with respect to the information provided here. The URI specified as a String , from which to download data.

The address parameter is null. The fileName parameter is null. The DownloadFile method downloads to a local file data from the URI specified by in the address parameter. This method blocks while downloading the resource. To download a resource and continue executing while waiting for the server's response, use one of the DownloadFileAsync methods. Since the data are downloaded and read into the buffer asynchronously, a loop is required to read and keep track of how many bytes have been read, and the point in the stream where the next read should start.

The loop will continue until the buffer is full or 0 bytes are read, indicating the end of the stream has been reached. The buffer must be sized large enough to hold the file. This is not a problem in this case as the doppler jpg's are a standard and known size.

Requirement: Requires. IO; using System. Net; using System. Net framework provides a set of classes that manage Internet communications and one in particular can be used to download files with C from the internet to the local hard drive.

A Synchronous download will only allow one download to be processed, and while it is being processed, the main program thread will pause until the download is complete.

It is the simplist method to implement, and if you can wait for the download to complete, it is often the best method to use. An asynchronous download does not block the main program thread apart from the initial DNS lookup converting a hostname to an IP address.