UWP C# ファイルオープン - Himeyama/himeyama GitHub Wiki
using System;
using Windows.Storage;
using Windows.Storage.Pickers;
namespace App
{
class Class
{
private async void OpenFile(object sender, RoutedEventArgs e)
{
FileOpenPicker filePicker = new();
filePicker.FileTypeFilter.Add(".txt");
StorageFile file = await filePicker.PickSingleFileAsync();
string fileName = file.Path;
text.Text = fileName;
}
}
}