C# WP8.1:Convert image from gallery to base64

Question

I'm having a little trouble developing my app. What I'm trying to do now is that let the user pick their picture from gallery(picture album) and display it. Furthermore, I want to convert that picture taken to Base64 string. Right now I've successfully pull and display picture from gallery, is there anyway I can convert that picture to base64 string.

Here's the code how I grab and display

private void picprofile_Tapped(object sender, TappedRoutedEventArgs e) { CoreApplicationView view; String ImagePath; view = CoreApplication.GetCurrentView(); ImagePath = string.Empty; FileOpenPicker filePicker = new FileOpenPicker(); filePicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary; filePicker.ViewMode = PickerViewMode.Thumbnail; // Filter to include a sample subset of file types filePicker.FileTypeFilter.Clear(); filePicker.FileTypeFilter.Add(".bmp"); filePicker.FileTypeFilter.Add(".png"); filePicker.FileTypeFilter.Add(".jpeg"); filePicker.FileTypeFilter.Add(".jpg"); filePicker.PickSingleFileAndContinue(); view.Activated += viewActivated; } private async void viewActivated(CoreApplicationView sender, IActivatedEventArgs args1) { CoreApplicationView view; view = CoreApplication.GetCurrentView(); FileOpenPickerContinuationEventArgs args = args1 as FileOpenPickerContinuationEventArgs; if (args != null) { if (args.Files.Count == 0) return; view.Activated -= viewActivated; StorageFile storageFile = args.Files[0]; var stream = await storageFile.OpenAsync(Windows.Storage.FileAccessMode.Read); var bitmapImage = new Windows.UI.Xaml.Media.Imaging.BitmapImage(); await bitmapImage.SetSourceAsync(stream); var decoder = await Windows.Graphics.Imaging.BitmapDecoder.CreateAsync(stream); picprofile.ImageSource = bitmapImage; } }

Apoorv · Accepted Answer · 2015-07-04 10:35:59Z

1

See this code below help . I hope there are multiple ways to do this . The link might help you

public async Task<string> ImageToBase64(StorageFile MyImageFile) { Stream ms = await MyImageFile.OpenStreamForReadAsync(); byte[] imageBytes = new byte[(int)ms.Length]; ms.Read(imageBytes, 0, (int)ms.Length); return Convert.ToBase64String(imageBytes); }

edited Jul 4, 2015 at 10:35

answered Jul 2, 2015 at 11:25

Apoorv

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3 Comments

Schwin W Pinkoh Over a year ago

I sure will take a look! I will get back asap

Schwin W Pinkoh Over a year ago

Already looked over the link provided. Some of the class (StreamResourceInfo) or method (writeablebitmap.save) doesn't really exist for Universal app 8.1, so I can't really use them.

Schwin W Pinkoh Over a year ago

This is perfect. Thank you Apporv

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