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using System;
using System.IO;

using SQLite;

namespace DataPersistence.Sqlite.Database.Private
{
    /// <summary>
    /// DatabaseAccess - Accesses the SQLite Database
    /// </summary>

axemastabloggists

using SQLite;

namespace DataPersistence.Sqlite.Database.Private
{
    public interface IDatabaseAccess
    {
        /// <summary>
        /// Returns a connection to the sqlite database
        /// </summary>
        /// <returns></returns>

axemastabloggists

<StackLayout VerticalOptions="Center" Padding="20,0">
    <Label Text="{Binding RedirectUrl}" HorizontalOptions="Center"/>
    <Button Text="Get Redirect Url" Command="{Binding GetValueCommand}"/>

    <BoxView HeightRequest="20" Color="Transparent"/>

    <Entry Placeholder="Update Redirect Url" Text="{Binding UpdatedValue}"/>
    <Button Text="Update" Command="{Binding UpdateValueCommand}"/>
</StackLayout>

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public MainPageViewModel()
{
    _appSettings = new AppSettings();
 
    GetValueCommand = new Command(OnGetValue);
    UpdateValueCommand = new Command(OnUpdateValue);
 
    _redirectUrl = "Press to get redirect url";
}

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#region Properties
 
public ICommand GetValueCommand { get; private set; }
public ICommand UpdateValueCommand { get; private set; }
 
#endregion Properties
 
#region OnCommand Methods
 
private void OnGetValue()

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#region Properties
 
private string _redirectUrl;
public string RedirectUrl
{
    get => _redirectUrl;
}
 
private string _updatedValue;
public string UpdatedValue

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#region Properties
 
private IAppSettings _appSettings;
 
#endregion Properties

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<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:local="clr-namespace:DataPersistence.Properties.Views"
             xmlns:viewModels="clr-namespace:DataPersistence.Properties.ViewModels"
             x:Class="DataPersistence.Properties.Views.MainPage">
    <ContentPage.BindingContext>
        <viewModels:MainPageViewModel/>
    </ContentPage.BindingContext>
    ...

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#endregion OnCommand Methods
 
#region PropertyChanged Methods
 
public event PropertyChangedEventHandler PropertyChanged;
 
protected virtual void OnPropertyChanged(string propertyName)
{
    PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

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public class MainPageViewModel : INotifyPropertyChanged
{
...
}