wpf:
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog(); dlg.DefaultExt = ".txt"; Nullable<bool> result = dlg.ShowDialog(); if (result == true) { // Open document string filename = dlg.FileName; }
FileStream aFile = new FileStream(filename, FileMode.Open); StreamReader sr = new StreamReader(aFile);
需要 using System.Windows.Documents; using System.IO;
windows app:
FileOpenPicker openPicker = new FileOpenPicker(); openPicker.ViewMode = PickerViewMode.List;
openPicker.SuggestedStartLocation = PickerLocationId.Desktop;
openPicker.FileTypeFilter.Add(".txt"); ss.file = await openPicker.PickSingleFileAsync();
string filename =ss.file.Path; StorageFile file =ss.file;
var fl = await FileIO.ReadLinesAsync(file);
需要:
using Windows.Storage;
using Windows.Storage.Pickers;
using System.Collections;
Windows phone:
FileOpenPicker openPicker = new FileOpenPicker(); openPicker.ViewMode = PickerViewMode.List; openPicker.SuggestedStartLocation = PickerLocationId.Desktop; openPicker.FileTypeFilter.Add(".txt"); openPicker.PickSingleFileAndContinue();
void MainPage_Activated(CoreApplicationView sender, Windows.ApplicationModel.Activation.IActivatedEventArgs args) { FileOpenPickerContinuationEventArgs continueArgs = args as FileOpenPickerContinuationEventArgs; if (continueArgs != null) { ss.file = continueArgs.Files[0]; if (ss.file != null) { BlankPage1 pg1 = new BlankPage1(); ss.bl = true; Frame.Navigate(typeof(BlankPage1)); } else { } } }
string filename = MainPage.ss.file.Path; StorageFile file = MainPage.ss.file; var fl = await FileIO.ReadLinesAsync(file);
需要:
using Windows.Storage;
using Windows.Storage.Pickers;
using Windows.ApplicationModel.Core;
using Windows.ApplicationModel.Activation;
using System.Collections;