Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. Now I want to give a facility to user from where the user can downlaod that file. I have the file data in byte array object. How can I display the open save dialoge box to user? This is an example to show blob images from the database, you can modify it to offer the file for download instead of showing the image id is the image file id in the database :.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Download file from filestream Ask Question. Windows Server automatically enables Windows Defender. Make sure that Windows Defender is configured to exclude Filestream files. Failure to do this can result in decreased performance for backup and restore operations.
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View all page feedback. In this article. Both succeed. Write operations under transaction 2 do not affect read operations performed in transaction 1. Once you know where the file is, get the stream and return it to the user. Here's an example from a Code Project article that should help you move in the right direction:. So the question becomes what to point the link to.
Can I point it directly to the SQL filestream file, or do I have to Select the SQL data, read it from the database and temporarily store it in a file and point the link to that? The content you requested has been removed. Ask a question. Quick access. Search related threads. Remove From My Forums.
Compared to the classical use of HttpClient, that you can display in the method getFiles , in dowloadFile and uploadFile we use the request method, that permits us to specify a HttpRequest with all its options, among them the option reportProgress set on true.
This option enables us to receive updates on the exchange data status between client and server. We can see that in our Upload component:. As you can see, the subscription to the observable returned from the HttpClient gives us an HttpEvent type object, which property type can acquire one of these five values:. If you want to level out events between upload and download and abstract us from the http library, we add our enumeration and our interface to the project:. Clicking on the button, the input selection window will open, allowing the user to select a file.
On the input change, we recall the component upload method. As the operation ends, both in case of success and of error, you need to clean out selection input, or it would not be possible to make the upload of the same file consecutively.
To do that, you can use both ReactiveForm and associate it a FormControl to the input, and with ngModel , cleaning out the bound property. We can make a similar procedure for the download, but we should insert a further requisite: we want to download the file, update the progress and supply the downloaded file to a user with no more interaction. The component logic is very similar to that of the upload, but, as we know, once the download is terminated, we want to supply the file to user immediately.
After that, we can delete the created anchor. Ugly, maybe. The better thing to do would probably be to move the whole manipulation part in a guideline, but, for the purposes of our reasoning, it would not make the much difference: I leave it to you as exercise!
We use both component from the FileManager component and there you have it. HTML will be as follow:. The component logic will limit itself to recover the list of available files and to show the upload and download status, based on events received from sons components:.
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