wtuts

public class ToastService
{
    public static void ShowToastNotification(String message)
    {
        ToastTemplateType toastTemplate = ToastTemplateType.ToastImageAndText01;
        XmlDocument toastXml = ToastNotificationManager.GetTemplateContent(toastTemplate);

        // Set Text
        XmlNodeList toastTextElements = toastXml.GetElementsByTagName("text");
        toastTextElements[0].AppendChild(toastXml.CreateTextNode(message));

wtuts

<StackPanel Margin="12" VerticalAlignment="Center">
    <TextBox x:Name="MyTextBox"/>
    <Button Content="Toast" HorizontalAlignment="Stretch" Click="ButtonBase_OnClick"/>
</StackPanel>

wtuts

public async void SaveThumbnail(StorageFile videofile, string thumbnailfilename)
        {
            var thumbnail = await videofile.GetThumbnailAsync(ThumbnailMode.VideosView);

            var saveFile = await ApplicationData.Current.LocalFolder.CreateFileAsync(thumbnailfilename, CreationCollisionOption.GenerateUniqueName);
            var inputBuffer = new Windows.Storage.Streams.Buffer(2048);

            using (var destFileStream = await saveFile.OpenAsync(FileAccessMode.ReadWrite))
            {
                IBuffer buf;

wtuts

 public async Task<BitmapImage> FetchThumbnail(StorageFile videofile)
        {
            //Fetching the thumbnail in form of StorageItemThumbnail
            var thumbnail = await videofile.GetThumbnailAsync(ThumbnailMode.VideosView);

            var inputBuffer = new Windows.Storage.Streams.Buffer(2048);
            
            IBuffer buf;
            IRandomAccessStream stream=new InMemoryRandomAccessStream();
                        

wtuts

 public async void CopyFileToFolder(StorageFile filetoCopy, StorageFolder folder)
        {
            await filetoCopy.CopyAsync(folder);
        }

wtuts

 public async void CopyFile(StorageFile fileToCopy,StorageFile filetoReplace)
        {
            await fileToCopy.CopyAndReplaceAsync(filetoReplace);
        }

wtuts

public async Task<string> GetFileSize(StorageFile file)
        {
            var basicProperties = await file.GetBasicPropertiesAsync();
            var length = basicProperties.Size;
            return Calculatesize(length);
        }
        
        public string Calculatesize(double sizeInBytes)
        {
            const double terabyte = 1099511627776;

wtuts

 BackKeyPress += OnBackKeyPress;
 
   private void OnBackKeyPress(object sender, CancelEventArgs e)
        {
            //Code to disable the back button
            e.Cancel = true;

            //Here you can add your own code and perform any task
            var mm = MessageBox.Show("Do you wish to exit the app", "Exit", MessageBoxButton.OKCancel);
            if (mm == MessageBoxResult.OK)

wtuts

HardwareButtons.BackPressed += HardwareButtons_BackPressed;

 private void HardwareButtons_BackPressed(object sender, BackPressedEventArgs e)
        {
                //Code to disable the back button
                e.Handled = true;
                
                //Here you can add your own code and perfrom any task
        }

wtuts

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Windows.Storage;
using SQLite;