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Create file path and ensure directory exists Var uriWithoutQuery = uri.GetLeftPart(UriPartial.Path)

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Download the image with HttpClient.GetByteArrayAsync, create the path, ensure the directory exists and then write the bytes to the path with File.WriteAllBytesAsync() private async Task DownloadImageAsync(string directoryPath, string fileName, Uri uri) Var fileExtension = Path.GetExtension(uriWithoutQuery) įrom here it should be straight forward. var uriWithoutQuery = uri.GetLeftPart(UriPartial.Path) We can use Uri.GetLeftPart() with UriPartial.Path to get everything from the Scheme up to the Path.Īfter that, we can use Path.GetExtension() to get only the extension (in my previous example. The first part of getting the file extension is to remove all the unnecessary parts from the URL. Instead, use the class.NET Core asynchronous solution Getting the file extension We don't recommend that you use the WebClient class for new development.

They use Image from System.Drawing (which is not available for.NET has changed a bit over the years, making the other answers on this post pretty dated: Here are reference to WebClient and Bitmap. Note : ArgumentException may be thrown by Image.FromStream if the downloaded content is not a known image type.Ĭheck this reference on MSDN to find all format available. YourImage.Save('path_to_your_file.jpg', ImageFormat.Jpeg) YourImage.Save('path_to_your_file.png', ImageFormat.Png) Using (var yourImage = Image.FromStream(mem)) Using (MemoryStream mem = new MemoryStream(data)) E.g: using (WebClient webClient = new WebClient())īyte data = webClient.DownloadData('') ), it will detect automaticaly the file type and you don't even need to check the url extension (which is not a very good practice).

You can use Image.FromStream to load any kind of usual bitmaps (jpg, png, bmp, gif. WebClient.DownloadFile('', 'image.png') ĭownload Image to a file without knowing the image format Something is wrong with Format - Maybe required Format is notĭepending whether or not you know the image format, here are ways you can do it : Download Image to a file, knowing the image format using (WebClient webClient = new WebClient()) SaveImage('- Any Image URL-', '- Any Image Path -', ImageFormat.Png)

Stream stream = client.OpenRead(imageUrl) īitmap bitmap bitmap = new Bitmap(stream) jpeg etc) of Image public void SaveImage(string imageUrl, string filename, ImageFormat format) They store the file in Directory rather than in C# string and no need of Format extension in URi If You don't know the Format(.png. using (WebClient client = new WebClient())Ĭlient.DownloadFileAsync(new Uri(url), methods are almost same as DownloadString(.) and DownloadStringAsync(.).

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