将控件(UIElements)保存在IsolatedStorage的列表中

时间:2014-01-19 12:56:00

标签: c# serialization windows-phone-8 windows-phone

我正在编写一个应用程序,我已经创建了一些自己的控件。其中一个控件正在根据用户的意愿动态添加到ListBox中。

此控件包含4个TextBox,每个TextBox都会在用户输入时从用户处获取数据。但我无法开展工作的是如何拯救他们。我试图将列表保存为普通列表 - 这不起作用。看我的代码:

声明:

List<scheduleControl> scheduleList;
IsolatedStorageSettings settings;

初始化设置:

settings = IsolatedStorageSettings.ApplicationSettings;

将控件动态添加到列表中:

        private void addscheduleitemButton_Click(object sender, RoutedEventArgs e)
    {
        // addscheduleitemButton was tapped, add an item to the list holding the information the user entered

        scheduleControl control = new scheduleControl();
        control.fromTextBlock.Text = "From: " + fromTextBox.Text.ToString();
        control.toTextBlock.Text = "To: " + toTextBox.Text.ToString();
        control.detailsTextBlock.Text = "Details: " + detailsTextBox.Text.ToString();
        control.dateTextBlock.Text = "Date: " + dateTextBox.Text.ToString();

        // Create Thickness
        Thickness stackpanelThickness = new Thickness();
        stackpanelThickness.Bottom = 20;
        stackpanelThickness.Top = 0;
        stackpanelThickness.Right = 0;
        stackpanelThickness.Left = 0;

        // Assign the thickness
        control.Margin = stackpanelThickness;

        // Add the control
        scheduleListBox.Items.Add(control);
        scheduleList.Add(control);
    }

控制xaml:

<UserControl x:Class="App_Name.scheduleControl"
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"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}" Height="132" Width="359">

<Grid x:Name="LayoutRoot" Background="{StaticResource PhoneChromeBrush}">
    <TextBlock x:Name="dateTextBlock" HorizontalAlignment="Left" Margin="10,0,0,0" TextWrapping="Wrap" Text="Date" VerticalAlignment="Top" FontSize="22" Height="32" Width="152"/>
    <TextBlock x:Name="fromTextBlock" HorizontalAlignment="Left" Margin="10,47,0,0" TextWrapping="Wrap" Text="From:" VerticalAlignment="Top" FontSize="22" Height="28" Width="152"/>
    <TextBlock x:Name="toTextBlock" HorizontalAlignment="Left" Margin="10,93,0,0" TextWrapping="Wrap" Text="To:" VerticalAlignment="Top" FontSize="22" Width="152"/>
    <TextBlock x:Name="detailsTextBlock" Margin="167,0,0,0" TextWrapping="Wrap" Text="Details:" FontSize="22" HorizontalAlignment="Left" Width="192"/>

</Grid>
</UserControl>

完成后保存列表:

                // Save the scheduleList
            settings.Add(projectnameTextBox.Text.ToString() + "-scheduleList", scheduleList);
settings.Save();

我得到一个InvalidDataControlException,这是因为日志说了一些关于被序列化的UIElement。

请帮助!:)

1 个答案:

答案 0 :(得分:0)

保存控件的内容,而不是控件。

IsolatedStorageSettings.ApplicationSettings可以保存您自己对象的列表,但需要额外的代码。这是good example