SQLite.NET PCL 在自增主键的所有实例中返回 0

Question

我完全不明白，因为我已经在 Xamarin 应用程序中使用这个库好几年了。

我有这个基础 class，它包含所有数据库项目中共有的属性：

public class BaseItem
{
    [PrimaryKey, AutoIncrement]
    public int ID { get; set; } = 0;        // SQLite ID
    public long CreatedTimeSeconds { get; set; } = DateTime.Now.ToUnixTimeSeconds();
    public long ModifiedTimeSeconds { get; set; } = DateTime.Now.ToUnixTimeSeconds();
}

现在，我从中得出：

[Table("CategoryTable")]
public class Category : BaseItem
{
    public int CategoryTypeID { get; set; } = (int)CategoryType.Invalid;
    public string Name { get; set; } = string.Empty;
    public string Description { get; set; } = string.Empty;
}

这是我所看到的简化版本：

public class DBWorld
{
    ISQLiteService SQLite { get { return DependencyService.Get<ISQLiteService>(); } }

    private readonly SQLiteConnection _conn;
    
    public DBWorld()
    {
        _conn = SQLite.GetConnection("myapp.sqlite");    
    }

    public void TestThis()
    {
        _conn.CreateTable<Category>();
        
        var category = new Category();
        category.Name = "This Should Work";
        
        int recCount = connection.Insert(category);
        // at this point recCount shows as 1, and category.ID shows as zero.
        // I thought Insert was supposed to set the autoincrement primary key 
        
        // regardless, it should be set in the database, right? So...
        var categoryList = connection.Query<Category>($"SELECT * FROM {DBConstants.CategoryTableName}");
        // at this point categoryList[0] contains all the expected values, except ID = 0        
    }
}

我显然遗漏了一些东西，但对于我来说，我无法弄清楚是什么......

Answer 1

就像 Visual Studio Xamarin 世界中发生的许多其他奇怪的事情一样，当我稍后回去时，它以我们所有人期望的方式工作。我想 Visual Studio 只是累了，需要重新开始。

SQLite.NET PCL 在自增主键的所有实例中返回 0

SQLite.NET PCL returning 0 in all instances of autoincrement primary key

xamarin.forms

sqlite-net

sqlite-net-pcl