Stopping a debugging session in Microsoft Visual Studio is comparable to closing your app. Even while debugging, your app should enumerate and then, resume, restart, or cancel any downloads persisted from the previous session.
For example, you can have your app cancel enumerated persisted download operations at app startup if there is no interest in previous operations for the current debug session. If there are Microsoft Visual Studio project updates, like changes to the app manifest, and the app is uninstalled and re-deployed, GetCurrentUploadsAsync cannot enumerate operations created using the previous app deployment.
See Debugging and testing UWP apps for more information. When using Background Transfer during development, you may get into a situation where the internal caches of active and completed transfer operations can get out of sync. This may result in the inability to start new transfer operations or interact with existing operations and BackgroundTransferGroup objects. In some cases, attempting to interact with existing operations may trigger a crash. This result can occur if the TransferBehavior property is set to Parallel.
This issue occurs only in certain scenarios during development and is not applicable to end users of your app. To work around this issue, completely uninstall all versions of the app and re-deploy with the new language, architecture, culture, or capability. Creates a new BackgroundDownloader object. Gets or sets the TileNotification used to define the visuals, identification tag, and expiration time of a tile notification used to update the app tile when indicating failure of a download to the user.
Gets or sets the ToastNotification that defines the content, associated metadata, and events used in a toast notification to indicate failure of a download to the user. Group may be altered or unavailable for releases after Windows 8. Instead, use TransferGroup. Gets or sets a string value for example, a GUID indicating the group the transfer will belong to. A download operation with a group ID will only appear in operation enumerations using GetCurrentDownloadsAsync String with the specific group string value.
Gets or sets the HTTP method used for the background download. The default method used for download operations is GET. Gets or sets the TileNotification used to define the visuals, identification tag, and expiration time of a tile notification used to update the app tile when indicating success of a download to the user.
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This is the example form of what to expect when you have the code in place: On to some code! First we need to import three new namespaces in addition to the ones we already have. Diagnostics ;. Net ;. Start ;. Show ex. Message ;. ToString "0. ProgressPercentage ;. Reset ;. Show "Download has been canceled.
Show "Download completed! C C , csharp , download file , progressbar , webclient download speed , winforms. February 9, at pm. December 26, at pm. December 12, at am. Izghard says:. July 22, at pm. Bob says:. September 25, at pm. GetFolderPath Environment. Desktop ;. Reza Hadipour says:. January 31, at am.
Oliver Daken says:. August 17, at am. Misiu says:. September 23, at am. OpenRead URL ;. ResponseHeaders [ "content-disposition" ] ;. WriteLine "No file name! FileName ;. WriteLine filename ;. Chris says:. September 8, at pm. Fns says:.
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