mattjohnsonpint

MIT License

Copyright (c) 2022 Matt Johnson-Pint

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

fiftyonemoon

import android.app.PendingIntent;
import android.app.RecoverableSecurityException;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.IntentSender;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.provider.MediaStore;

dansiegel

using System;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;

namespace AwesomeApp.Xaml
{
    [ContentProperty(nameof(Type))]
    public class EnumBindingSourceExtension : IMarkupExtension
    {
        public Type Type { get; set; }

Char0394

namespace ValidationsXFSample.ViewModels
{
    public class RegisterPageViewModel: INotifyPropertyChanged
    {
        public ValidatableObject<string> FirstName { get; set; } = new ValidatableObject<string>();
        public ValidatableObject<string> LastName { get; set; } = new ValidatableObject<string>();
        public ValidatableObject<DateTime> BirthDay { get; set; } = new ValidatableObject<DateTime>() { Value = DateTime.Now };
        public ValidatableObject<string> PhoneNumber { get; set; } = new ValidatableObject<string>();
        public ValidatablePair<string> Email { get; set; } = new ValidatablePair<string>();
        public ValidatablePair<string> Password { get; set; } = new ValidatablePair<string>();

Char0394

{
public class EntryLineValidationBehaviour : BehaviorBase<Entry>
    {
        #region StaticFields
        public static readonly BindableProperty IsValidProperty = BindableProperty.Create(nameof(IsValid), typeof(bool), typeof(EntryLineValidationBehaviour), true, BindingMode.Default, null, (bindable, oldValue, newValue) => OnIsValidChanged(bindable, newValue));
        #endregion
        #region Properties
        public bool IsValid
        {
            get

Char0394

 public class InverseBoolConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (!(value is bool))
            {
                throw new InvalidOperationException("The target must be a boolean");
            }

            return !(bool)value;

Char0394

public class FirstValidationErrorConverter : IValueConverter
	{
		public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
		{
			ICollection<string> errors = value as ICollection<string>;
			return errors != null && errors.Count > 0 ? errors.ElementAt(0) : null;
		}

		public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
		{

Char0394

 public class RegisterPageViewModel: INotifyPropertyChanged
  {
        ...
        bool AreFieldsValid()
        {
            bool isFirstNameValid = FirstName.Validate();
            bool isLastNameValid = LastName.Validate();
            bool isBirthDayValid = BirthDay.Validate();
            bool isPhoneNumberValid = PhoneNumber.Validate();
            bool isEmailValid = Email.Validate();

Char0394

public class RegisterPageViewModel: INotifyPropertyChanged
{
        public ValidatableObject<string> FirstName { get; set; } = new ValidatableObject<string>();
        public ValidatableObject<string> LastName { get; set; } = new ValidatableObject<string>();
        public ValidatableObject<DateTime> BirthDay { get; set; } = new ValidatableObject<DateTime>() { Value = DateTime.Now };
        public ValidatableObject<string> PhoneNumber { get; set; } = new ValidatableObject<string>();
        public ValidatablePair<string> Email { get; set; } = new ValidatablePair<string>();
        public ValidatablePair<string> Password { get; set; } = new ValidatablePair<string>();
        public ValidatableObject<bool> TermsAndCondition { get; set; } = new ValidatableObject<bool>();
  }

Char0394

 public class ValidatableObject<T> : IValidatable<T>
    {
        public event PropertyChangedEventHandler PropertyChanged;

        public List<IValidationRule<T>> Validations { get; } = new List<IValidationRule<T>>();

        public List<string> Errors { get; set; } = new List<string>();

        public bool CleanOnChange { get; set; } = true;