How to convert image to base64string Xamarin Forms?

Question

I want to convert my image to base64string. I want to save the base64string to my database. I can get the path of my image. How can I get the image from my path and convert the image to base64string and what datatype do I need to put inorder to save base64string to my database is it BLOB?

try
{
   var cafNo = entCafNo.Text;
   var time = tpTime.Time;

   await CrossMedia.Current.Initialize();

   if (!CrossMedia.Current.IsCameraAvailable || !CrossMedia.Current.IsTakePhotoSupported)
   {
      await DisplayAlert("No Camera", "No Camera Available", "Ok");
      return;
   }

   var file = await CrossMedia.Current.TakePhotoAsync(
   new StoreCameraMediaOptions
   {
      SaveToAlbum = true,
      Name = cafNo + "_IMG_01.jpg"
   }
   );

   // provide read access to the file
   FileStream fs = new FileStream(file.Path, FileMode.Open, FileAccess.Read);
   // Create a byte array of file stream length
   byte[] ImageData = new byte[fs.Length];
   //Read block of bytes from stream into the byte array
   fs.Read(ImageData, 0, System.Convert.ToInt32(fs.Length));
   //Close the File Stream
   fs.Close();
   string _base64String = Convert.ToBase64String(ImageData);

   entPhoto1Url.Text = _base64String;
   }
   catch(Exception ex)
   {
      await DisplayAlert("Error", ex.Message, "OK");
   }

what is wrong with the code you have? You appear to be reading the image from the file path and encoding it as base64. Is it giving you an error or exception? — Jason, Aug 19 '18 at 02:47
@Jason no, but the result of _base64String is the file path converted to base64string for example the file path is F:/Images/Image.jpg and the base64string is QSR/QWRE/WAASDAWASR it converted the whole filepath to base64string I want to get the image only — loot verge, Aug 19 '18 at 02:52
@Jason and what data type do I need to save the base64string? — loot verge, Aug 19 '18 at 02:53
That is useful information that should have been in your original post. Try using File.ReadAllBytes(path) to read the image data from disk. You could either save it as a varchar or a blob — Jason, Aug 19 '18 at 03:05
byte[] ImageData = File.ReadAllBytes(file.Path); Get rid of all the FileStream stuff. Read the MS docs on File.ReadAllBytes() — Jason, Aug 19 '18 at 03:10
@Jason is it ok that the whole file path is converted to base64string? — loot verge, Aug 19 '18 at 03:15
@Jason is the file path that is being converted or the image only? — loot verge, Aug 19 '18 at 03:19
No. First, confirm that ImageData really contains the image data and not the file path. — Jason, Aug 19 '18 at 03:19
https://learn.microsoft.com/en-us/dotnet/api/system.convert.tobase64string — Jason, Aug 19 '18 at 03:20
@Jason just to clarify the data being converted to base64string is the image not the file path of the image? — loot verge, Aug 19 '18 at 03:31
@Jason is it ok that the converted base64 string is more than 500 characters long? How can I save that to my database? — loot verge, Aug 20 '18 at 16:44
Why would that matter? Your image is 2.7M, encoding it will just make it larger — Jason, Aug 20 '18 at 16:48
@Jason Is there a way to save the captured image to my server? other that converting it to base64 string? I am converting the image to base64 string and send it to my PHP api that will be saved to my mysql database — loot verge, Aug 20 '18 at 16:52
@Jason what data type do I need in order to save the byte array to database? — loot verge, Aug 20 '18 at 23:58
first result from google: https://stackoverflow.com/questions/15518051/save-byte-array-in-sql-server — Jason, Aug 21 '18 at 00:21
@Jason is there another way for me to get the captured image and send it to my PHP API(Server) — loot verge, Aug 21 '18 at 00:41
@Jason please see https://stackoverflow.com/questions/51940340/send-byte-array-from-xamarin-forms-to-php — loot verge, Aug 21 '18 at 01:14

How to convert image to base64string Xamarin Forms?

0 Answers0