File access sample

<!--
//*********************************************************
//
// Copyright (c) Microsoft. All rights reserved.
// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
//
//*********************************************************
-->

<common:LayoutAwarePage
    x:Class="SDKSample.FileAccess.Scenario4"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:SDKSample.FileAccess"
    xmlns:common="using:SDKSample.Common"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid x:Name="LayoutRoot" Background="White" HorizontalAlignment="Left" VerticalAlignment="Top">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid x:Name="Input" Grid.Row="0">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>

            <TextBlock Grid.Row="0" Style="{StaticResource BasicTextStyle}" TextWrapping="Wrap" HorizontalAlignment="Left">
                To write some text to 'sample.dat' using a stream, type something in the textbox below and click 'Write'.
                To read the contents of 'sample.dat' using a stream, click 'Read'.
            </TextBlock>

            <StackPanel Grid.Row="1" Orientation="Vertical">
                <TextBox x:Name="InputTextBox" IsReadOnly="false" HorizontalAlignment="Stretch" VerticalAlignment="Top" Height="100" TextWrapping="Wrap" AcceptsReturn="True"/>
                <StackPanel Orientation="Horizontal">
                    <Button x:Name="WriteToStreamButton" Content="Write" Margin="0,0,10,0"/>
                    <Button x:Name="ReadFromStreamButton" Content="Read" Margin="0,0,10,0"/>
                </StackPanel>
            </StackPanel>
        </Grid>

        <Grid x:Name="Output" HorizontalAlignment="Left" VerticalAlignment="Top" Grid.Row="1">
            <TextBlock x:Name="OutputTextBlock" Style="{StaticResource BasicTextStyle}" TextWrapping="Wrap"/>
        </Grid>

        <!-- Add Storyboards to the visual states below as necessary for supporting the various layouts -->
        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup>
                <VisualState x:Name="FullScreenLandscape"/>
                <VisualState x:Name="Filled"/>
                <VisualState x:Name="FullScreenPortrait"/>
                <VisualState x:Name="Snapped"/>
            </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
    </Grid>
</common:LayoutAwarePage>