private async void WriteToStreamButton_Click(object sender, RoutedEventArgs e)
{
StorageFile file = rootPage.sampleFile;
if (file != null)
{
try
{
string userContent = InputTextBox.Text;
using (StorageStreamTransaction transaction = await file.OpenTransactedWriteAsync())
{
IBuffer buffer = MainPage.GetBufferFromString(userContent);
await transaction.Stream.WriteAsync(buffer);
transaction.Stream.Size = buffer.Length; // truncate file
await transaction.CommitAsync();
rootPage.NotifyUser($"The following text was written to '{file.Name}' using a stream:\n{userContent}", NotifyType.StatusMessage);
}
}
catch (FileNotFoundException)
{
rootPage.NotifyUserFileNotExist();
}
catch (Exception ex)
{
// I/O errors are reported as exceptions.
rootPage.NotifyUser(String.Format("Error writing to '{0}': {1}", file.Name, ex.Message), NotifyType.ErrorMessage);
}
}
else
{
rootPage.NotifyUserFileNotExist();
}
}
private async void WriteBytesButton_Click(object sender, RoutedEventArgs e)
{
StorageFile file = rootPage.sampleFile;
if (file != null)
{
try
{
string userContent = InputTextBox.Text;
IBuffer buffer = MainPage.GetBufferFromString(userContent);
await FileIO.WriteBufferAsync(file, buffer);
rootPage.NotifyUser(String.Format("The following {0} bytes of text were written to '{1}':{2}{3}", buffer.Length, file.Name, Environment.NewLine, userContent), NotifyType.StatusMessage);
}
catch (FileNotFoundException)
{
rootPage.NotifyUserFileNotExist();
}
catch (Exception ex)
{
// I/O errors are reported as exceptions.
rootPage.NotifyUser(String.Format("Error writing to '{0}': {1}", file.Name, ex.Message), NotifyType.ErrorMessage);
}
}
else
{
rootPage.NotifyUserFileNotExist();
}
}