![]() This specific syntax will have sqlite to not substitute itId for rowid, so you will have both a separate autoincremented rowid column and your itId column. A solution is to change itId from integer primary key to int primary key. ![]() Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread. 1 Answer Sorted by: 0 It seems that substitution of null with a new rowid happens before the conflict is evaluated. If the response is helpful, please click " Accept Answer" and upvote it. Public Task DeleteNoteAsync(Profile note) using SQLite ĭatabase = new SQLiteAsyncConnection(dbPath) TestImage.Source = ImageSource.FromStream(() => new MemoryStream(bytes)) įor testing, you can refer to my NoteDatabase.cs as well. String imageBase64 = Convert.ToBase64String(result) īyte bytes = 64String(imageBase64) Convert Byte to Base64, you can store Base64String to the Sqlite DB read Base64 string from DB, then convert Base64 string to Stream, then you can display it. You can create a UNIQUE INDEX which has essentially the same effect as a PRIMARY KEY. save Base64 string to the SQLite DB, when you need to show the image. If you do not want to save filePath to the SQLite DB, you can read the Image to byte, then convert to it Base64 string. Using (var newStream = File.OpenWrite(newFile)) Using (Stream stream = await photo.OpenReadAsync()) Var newFile = Path.Combine(FileSystem.CacheDirectory, photo.FileName) score:0 The link you are refering to describe the various algorithm used to select a default rowid (with ou without AUTOINCREMENT ). Var photo = await MediaPicker.PickPhotoAsync() Ĭonsole.WriteLine($"CapturePhotoAsync COMPLETED: ") Īsync Task LoadPhotoAsync(FileResult photo) INSERT INTO PaymentInformation (NAME, Start, End) VALUES ('Tina','','') WHERE NOT EXISTS ( SELECT FROM PaymentInformation WHERE name 'Tina' AND durationstart '' ) Is this how it should be done It shouldn't insert if Tina is already in the table with a Start day of. Private async void Button_Clicked_1(object sender, EventArgs e) private void Button_Clicked(object sender, EventArgs e) I can get the PhotoPath, then I click the save Button to execute Button_Clicked, to save the Profile to SQLite DB. I click the Picker Button in my demo, to execute the Button_Clicked_1 method. ![]() The keyword AUTOINCREMENT can be used with INTEGER field only. We can auto increment a field value by using AUTOINCREMENT keyword when creating a table with specific column name to auto increment. I am using Entity Framework Core 2.0 for Sqlite code first in my UWP and. Then you have two ways to store image to SQLite DB.įirst way (recommand this way): You can store Image FilePath to SQLite DB.įor example, when you Xamarin.Essentials: Media Picker to picker a image or take a photo, you can get the file path. SQLite AUTOINCREMENT is a keyword used for auto incrementing a value of a field in the table. First of all, please change the type of ProfilePic from ImageSource to string. ![]()
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