我正在关注MSDN示例，将设置页面添加到我的第一个Windows Phone 8应用程序中（警告 - 我是XAML的新手，我是C ++人员。）
xaml看起来像这样：
<phone:PhoneApplicationPage
x:Class="PicoSDU.AppSettings"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:PicoSDU"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
mc:Ignorable="d"
shell:SystemTray.IsVisible="True">
<phone:PhoneApplicationPage.Resources>
<local:AppSettings x:Key="PicoSettings"></local:AppSettings>
</phone:PhoneApplicationPage.Resources>
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel Grid.Row="0" Margin="12,17,0,28">
<TextBlock Text="PicoSDU" Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock Text="Settings" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>
<!--ContentPanel - place additional content here-->
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<StackPanel Margin="30,0,0,0">
<TextBlock Height="36" HorizontalAlignment="Left" Margin="0,0,0,0" Name="txtIpAddress" Text="IP Address" VerticalAlignment="Top" Width="169" />
<TextBox Name="tbIpAddress" HorizontalAlignment="Left" Margin="0,0,0,0" VerticalAlignment="Top" Width="274"
Text="{Binding Source={StaticResource PicoSettings}, Path=IpSetting, Mode=TwoWay}"/>
<TextBlock Height="36" HorizontalAlignment="Left" Margin="0,0,0,0" Name="txtPort" Text="Port Number" VerticalAlignment="Top" Width="169" />
<TextBox Name="tbPort" HorizontalAlignment="Left" Margin="0,0,0,0" VerticalAlignment="Top" Width="274"
Text="{Binding Source={StaticResource PicoSettings}, Path=PortSetting, Mode=TwoWay}"/>
<TextBlock Height="36" HorizontalAlignment="Left" Margin="0,0,0,0" Name="txtSysId" Text="System ID" VerticalAlignment="Top" Width="169" />
<TextBox Name="tbSysId" HorizontalAlignment="Left" Margin="0,0,0,0" VerticalAlignment="Top" Width="274"
Text="{Binding Source={StaticResource PicoSettings}, Path=SysIdSetting, Mode=TwoWay}"/>
<TextBlock Height="36" HorizontalAlignment="Left" Margin="0,0,0,0" Name="txtWsId" Text="Station ID" VerticalAlignment="Top" Width="169" />
<TextBox Name="tbWsId" HorizontalAlignment="Left" Margin="0,0,0,0" VerticalAlignment="Top" Width="274"
Text="{Binding Source={StaticResource PicoSettings}, Path=WsIdSetting, Mode=TwoWay}"/>
</StackPanel>
</Grid>
</Grid>
</phone:PhoneApplicationPage>
所以，非常简单。四个文本框。在我添加资源子句
之前，它完全正常<phone:PhoneApplicationPage.Resources>
<local:AppSettings x:Key="PicoSettings"></local:AppSettings>
</phone:PhoneApplicationPage.Resources>
一旦我添加XAML解析器抛出一个摇摆器，根PhoneApplicationPage就会得到旧的蓝色波浪形，并报告我们最喜欢的“元素已经是另一个元素的子元素”错误。如果我删除了资源子句，那么该错误就会消失并且xaml呈现，但是当然文本框绑定都会引发错误，因为它们无法看到它们的资源。
过去三个小时我一直在谷歌搜索，我看不出有什么问题，我在这里和其他地方找到的答案似乎都不合适。某种善良的灵魂能否向我展示我所做过的令人眼花缭乱的愚蠢事情，请让我摆脱困境？
修改的 这是AppSettings类。这只是微软的代码示例，入侵了代码隐藏：
namespace PicoSDU
{
public partial class AppSettings : PhoneApplicationPage
{
// Our settings
IsolatedStorageSettings settings;
// The key names of our settings
const string IpSettingKeyName = "IpSetting";
const string SysIdSettingKeyName = "SysIdSetting";
const string WsIdSettingKeyName = "WsIdSetting";
const string PortSettingKeyName = "PortSetting";
// The default value of our settings
const string IpSettingDefault = "81.179.24.51";
const string SysIdSettingDefault = "1";
const string WsIdSettingDefault = "511";
const string PortSettingDefault = "1846";
public AppSettings()
{
InitializeComponent ();
try
{
settings = IsolatedStorageSettings.ApplicationSettings;
}
catch (System.IO.IsolatedStorage.IsolatedStorageException e)
{
// handle exception
}
}
public bool AddOrUpdateValue(string Key, Object value)
{
bool valueChanged = false;
// If the key exists
if (settings.Contains(Key))
{
// If the value has changed
if (settings[Key] != value)
{
// Store the new value
settings[Key] = value;
valueChanged = true;
}
}
// Otherwise create the key.
else
{
settings.Add(Key, value);
valueChanged = true;
}
return valueChanged;
}
public T GetValueOrDefault<T>(string Key, T defaultValue)
{
T value;
// If the key exists, retrieve the value.
if (settings.Contains(Key))
{
value = (T)settings[Key];
}
// Otherwise, use the default value.
else
{
value = defaultValue;
}
return value;
}
public void Save()
{
settings.Save();
}
public string IpSetting
{
get
{
return GetValueOrDefault<string>(IpSettingKeyName, IpSettingDefault);
}
set
{
if (AddOrUpdateValue(IpSettingKeyName, value))
{
Save();
}
}
}
public string SysIdSetting
{
get
{
return GetValueOrDefault<string> ( SysIdSettingKeyName, SysIdSettingDefault );
}
set
{
if (AddOrUpdateValue ( SysIdSettingKeyName, value ))
{
Save ();
}
}
}
public string WsIdSetting
{
get
{
return GetValueOrDefault<string> ( WsIdSettingKeyName, WsIdSettingDefault );
}
set
{
if (AddOrUpdateValue ( WsIdSettingKeyName, value ))
{
Save ();
}
}
}
public string PortSetting
{
get
{
return GetValueOrDefault<string> ( PortSettingKeyName, PortSettingDefault );
}
set
{
if (AddOrUpdateValue ( PortSettingKeyName, value ))
{
Save();
}
}
}
}
}
答案 0 :(得分：1)
你的代码非常棒。您正在尝试将一个页面（您的AppSettings类继承自PhoneApplicationPage）嵌入到另一个页面中。一种更好的方法是使用MVVM模式。
不要让AppSettings继承PhoneApplicationPage并将其变成ViewModel。有关详情，请访问http://msdn.microsoft.com/en-us/library/windowsphone/develop/gg521153(v=vs.105).aspx