UPDATE上的WPF数据网格不会更新SQLite数据库

Question

我的WPF应用程序使用本地SQLite数据库。我使用此数据库填充数据网格。没关系。但是，我希望用户能够在数据网格中进行更改，然后再更新SQLite数据库。

我尝试了许多方法，整个周末都在互联网上搜索解决方案，但无济于事。抱歉，但是我是WPF的新手，所以这可能非常基础。

这是我的代码：

    //Update the SQLite db
    private void Button_Click_3(object sender, RoutedEventArgs e)
    {
        string ConnectionStringDestination = @"Data Source=C:\Test\Testdb.db;Version=3;";
        var con = new SQLiteConnection("Data Source=C:\\Test\Testdb.db;Version=3;");
        SQLiteConnection cons = new SQLiteConnection(ConnectionStringDestination, true);
        try
        {
            cons.Open();
            SQLiteCommand cmd = cons.CreateCommand();
            cmd.CommandText = "SELECT RecordId, BatchNumber FROM BatchNumbers";
            using (SQLiteDataAdapter dataAdapter = new SQLiteDataAdapter(cmd.CommandText, con))
            {
                DataTable BatchNumbers = new DataTable();
                dataAdapter.Fill(BatchNumbers);
                SQLiteCommandBuilder mybuilder = new SQLiteCommandBuilder(dataAdapter);
                dataAdapter.UpdateCommand = mybuilder.GetUpdateCommand();
                dataAdapter.Update(BatchNumbers);

            }
        }
        catch (Exception exp)
        {
            MessageBox.Show(exp.Message);
        }
    }

我希望数据库更新。但事实并非如此！

这是我尝试过的另一条尝试，但这也不起作用

private void Mydatagrid_RowEditEnding(object sender, DataGridRowEditEndingEventArgs e)
    {

        string ConnectionStringDestination = @"Data Source=C:\Test\Testdb.db;Version=3;";
        var con = new SQLiteConnection("Data Source=C:\\Test\\Testdb.db;Version=3;");
        SQLiteConnection cons = new SQLiteConnection(ConnectionStringDestination, true);
        SQLiteCommand myCmd = new SQLiteCommand("Select RecordId, BatchNumber FROM BatchNumbers", cons);
        SQLiteDataAdapter sda = new SQLiteDataAdapter(myCmd);
        DataTable dt = new DataTable("BatchNumbers");
        cons.Open();
        SQLiteCommandBuilder builder = new SQLiteCommandBuilder(sda);
        sda.UpdateCommand = builder.GetUpdateCommand();
        sda.Update(dt);
        cons.Close();

    }