程式 . 生活 . D小調

<UserControl x:Class="SaveFileDialogMemo.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

mc:Ignorable="d"

d:DesignHeight="300" d:DesignWidth="400">

<Grid x:Name="LayoutRoot" Background="White">

<TextBox Height="192" HorizontalAlignment="Left" Margin="12,20,0,0" Name="txtContext" VerticalAlignment="Top" Width="368" FontSize="14" AcceptsReturn="True" TextWrapping="Wrap" Text="如果等等的彈出視窗，你快速把他按掉有機會可以存檔成功" />

<Button Content="存檔" Height="32" HorizontalAlignment="Left" Margin="296,218,0,0" Name="btnSave" VerticalAlignment="Top" Width="84" FontSize="14" Click="btnSave_Click" />

</Grid>

</UserControl>

private void btnSave_Click(object sender, RoutedEventArgs e)

{

try{

SaveFileDialog sfd=new SaveFileDialog();

sfd.DefaultExt = ".txt";

sfd.Filter = "Text Files|*.txt|Log Files|*.log|All Files|*.*";

//把下一行註解掉一切就會正常

MessageBox.Show("稍微停一下按掉就會錯，如果按得快一點就不會錯!!");

if (sfd.ShowDialog() == true)

{

using (Stream stream = sfd.OpenFile())

{

using (StreamWriter writer = new StreamWriter(stream, System.Text.UnicodeEncoding.Unicode))

{

writer.Write(this.txtContext.Text);

writer.Close();

}

stream.Close();

}

}

}

catch(Exception ex)

{

MessageBox.Show(ex.StackTrace);

}

}