UWP: How to bind a Textblock to a .txt file?-CodePudding

The file "sample.txt" is in the Assets folder, and contains a single line with the text "hello, world". I would like to bind its content to a Textblock control.

CodePudding user response：

Set the Text property of the TextBlock to the contents of the file:

public sealed partial class MainPage : Page
{
    public MainPage()
    {
        this.InitializeComponent();

        this.Loaded  = async (s, e) =>
        {
            const string Filename = @"Assets\sample.txt";
            var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
            var file = await folder.GetFileAsync(Filename);
            textBlock1.Text = await File.ReadAllTextAsync(file.Path);
        };
    }
}

CodePudding user response：

Extract the text from the file using File.ReadAllText and assign it to a property on a class that implements INotifyPropertyChanged. Bind this property to the TextBlock.Text property. To detect changes in the txt-file, use FileSystemWatcher.