c# - WP8 Listpicker 不要进入完整模式

Question

我正在开发 Windows Phone 8.1 silverlight 应用。

我需要创建一个 ListPicker 并在全屏模式下打开它，但总是会出现错误，因为没有在列表选择器元素上检测到 ExpansionMode。

我的代码 XML:

<phone:PhoneApplicationPage
    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:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"
    x:Class="FlyGolf_V1.Views.event_detail"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait" Orientation="Portrait"
    mc:Ignorable="d"
    shell:SystemTray.IsVisible="True" Loaded="PhoneApplicationPage_Loaded">


    <Grid>
        <ScrollViewer>
            <Grid x:Name="scheduleGrid" Grid.Row="1" Background="#f3f3f4">
                <Grid.RowDefinitions>
                    <RowDefinition Height="60" />
                    <RowDefinition Height="130" />
                    <RowDefinition Height="80" />
                    <RowDefinition Height="100" />
                    <RowDefinition Height="80" />
                    <RowDefinition Height="100" />
                    <RowDefinition Height="80" />
                    <RowDefinition Height="340" />
                    <RowDefinition Height="340" />
                </Grid.RowDefinitions>

                <!-- SAVE DATA -->


                <!-- EVENT GERAL INFO -->
                <StackPanel x:Name="datePanel" Height="220" Grid.Row="0" Grid.Column="0" 
                            Margin="0,0,0,20" Background="#18a689">
                    <TextBlock x:Name="txtDate"  HorizontalAlignment="Center" Margin="0,0,0,0" 
                               TextWrapping="Wrap" Text="Date" VerticalAlignment="Top" 
                               FontSize="25" FontWeight="Bold" />
                </StackPanel>

                <Grid Grid.Row="1" >
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="100" />
                        <ColumnDefinition Width="250" />
                        <ColumnDefinition Width="*" />
                    </Grid.ColumnDefinitions>

                    <Grid.RowDefinitions>
                        <RowDefinition Height="130" />
                    </Grid.RowDefinitions>

                    <StackPanel Grid.Column="0" Grid.Row ="0">
                        <Ellipse  x:Name="ellipseStatus" Width="80" Height="80" 
                                  Margin="10,25,10,0" Fill="Green"/>
                    </StackPanel>
                    <StackPanel Grid.Column="1">
                        <TextBlock x:Name="txtType" Margin="0,5,0,0" TextWrapping="Wrap" 
                                   Text="Type" VerticalAlignment="Top" FontSize="20" 
                                   FontWeight="Bold" Foreground="#576A6C"/>
                        <TextBlock x:Name="txtDurationHeader" Margin="0,2,0,0" TextWrapping="Wrap" 
                                   Text="Duration" VerticalAlignment="Top" FontSize="18" Foreground="#576A6C"/>
                        <TextBlock x:Name="txtDescription" Margin="0,0,5,0" TextWrapping="Wrap" 
                                   Text="Description" VerticalAlignment="Top" FontSize="18" Foreground="#576A6C"/>
                    </StackPanel>
                    <Grid Grid.Column="2">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="*" />
                            <RowDefinition Height="*" />
                        </Grid.RowDefinitions>
                        <StackPanel x:Name="spStatusComplete" Grid.Row="0" 
                                    Height="40" Margin="0,10,0,0">
                            <TextBlock x:Name="txtStatusComplete" Margin="0,5,10,0" HorizontalAlignment="Center" TextWrapping="Wrap" 
                                       Text="status" VerticalAlignment="Top" FontSize="20"/>
                        </StackPanel>

                        <StackPanel x:Name="spStatusAccepted" Grid.Row="1" 
                                    Height="40" Margin="0,-10,0,0">
                            <TextBlock x:Name="txtStatusAccepted" Margin="0,5,10,0" HorizontalAlignment="Center" TextWrapping="Wrap" 
                                       Text="status" VerticalAlignment="Top" FontSize="20"/>
                        </StackPanel>
                    </Grid>
                </Grid>

                <!-- INITIAL DATE / TIME INFO -->
                <StackPanel x:Name="initialDateTimePanel" Height="220" Grid.Row="2" Grid.Column="0" 
                            Margin="0,20,0,20" Background="#18a689">
                    <TextBlock x:Name="lblinitialDateTime"  HorizontalAlignment="Center" Margin="0,0,0,0" TextWrapping="Wrap" 
                               Text="Initial Date / Initial Time" VerticalAlignment="Top" 
                               FontSize="25" FontWeight="Bold" />
                </StackPanel>

                <Grid Grid.Row="3">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="*" />
                        <ColumnDefinition Width="*" />
                    </Grid.ColumnDefinitions>

                    <toolkit:DatePicker x:Name="dpInitialDate" Grid.Column="0" Foreground="#676a6c" BorderBrush="#676a6c" 
                                        HorizontalAlignment="Center" VerticalAlignment="Center" />

                    <toolkit:TimePicker x:Name="tpInitialTime" Grid.Column="1" Foreground="#676a6c" BorderBrush="#676a6c" 
                                        HorizontalAlignment="Center" VerticalAlignment="Center" />
                </Grid>

                <!-- FINAL DATE / TIME INFO -->
                <StackPanel x:Name="finalDateTimePanel" Height="220" Grid.Row="4" Grid.Column="0" 
                            Margin="0,20,0,20" Background="#18a689">
                    <TextBlock x:Name="lblfinalDateTime" HorizontalAlignment="Center" Margin="0,0,0,0" TextWrapping="Wrap" 
                               Text="Final Date / Final Time" VerticalAlignment="Top" 
                               FontSize="25" FontWeight="Bold" />
                </StackPanel>

                <Grid Grid.Row="5">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="41*" />
                        <ColumnDefinition Width="79*"/>
                        <ColumnDefinition Width="120*" />
                    </Grid.ColumnDefinitions>

                    <toolkit:DatePicker x:Name="dpFinalTime" Grid.Column="0" Foreground="#676a6c" BorderBrush="#676a6c" 
                                        HorizontalAlignment="Center" VerticalAlignment="Center" 
                                        Grid.ColumnSpan="2" Margin="37,14" />

                    <toolkit:TimePicker x:Name="tpFinalTime" Grid.Column="2" Foreground="#676a6c" BorderBrush="#676a6c" 
                                        HorizontalAlignment="Center" VerticalAlignment="Center" Margin="53,14,52,14" />
                </Grid>

                <!-- DURATION / ACTIVITY TYPE INFO -->
                <StackPanel Grid.Row="6" x:Name="durationPanel" Height="220" Grid.Column="0" 
                            Margin="0,20,0,20" Background="#18a689">
                    <TextBlock x:Name="lblDuration"  HorizontalAlignment="Center" Margin="0,0,0,0" TextWrapping="Wrap" 
                               Text="Duration / Activity Type" VerticalAlignment="Top" 
                               FontSize="25" FontWeight="Bold" />
                </StackPanel>

                <Grid Grid.Row="7">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="70" />
                        <RowDefinition Height="200" />
                        <RowDefinition Height="300" />
                    </Grid.RowDefinitions>

                    <TextBox x:Name="txtDuration" TextAlignment="Center" Grid.Row="0" Foreground="#676a6c" BorderBrush="#676a6c" 
                             HorizontalAlignment="Center" TextWrapping="Wrap" Text="Duration" 
                             VerticalAlignment="Center" Width="250" 
                             GotFocus="TextBox_GotFocus" LostFocus="txtDuration_LostFocus"/>

                    <ScrollViewer Grid.Row="1">
                        <toolkit:ListPicker x:Name="lpActivityType" ExpansionMode="FullScreenOnly" 
                                            Foreground="#676a6c" BorderBrush="#676a6c" Grid.Column="1" 
                                            HorizontalAlignment="Center" VerticalAlignment="Center">
                        </toolkit:ListPicker>
                    </ScrollViewer>

                    <TextBox x:Name="txtComments" Grid.Row="2" AcceptsReturn="True" Margin="5" Height="200" 
                             Foreground="#676a6c" BorderBrush="#676a6c" VerticalScrollBarVisibility="Visible" 
                             TextWrapping="Wrap" VerticalAlignment="Center" Text="Comments" 
                             LostFocus="txtComments_LostFocus" GotFocus="txtComments_GotFocus" />
                </Grid>

            </Grid>
        </ScrollViewer>
    </Grid>
</phone:PhoneApplicationPage>

我的构造页面函数:

public event_detail()
{
    InitializeComponent();

    String[] listProjects = {
                                "1º Projecto Drive", 
                                "2º Projecto Drive 2º Projecto Drive",
                                "3º Projecto Drive",
                                "4º Projecto Drive",
                                "5º Projecto Drive",
                                "6º Projecto Drive",
                                "7º Projecto Drive",
                                "8º Projecto Drive",
                                "9º Projecto Drive",
                                "10º Projecto Drive",
                                "11º Projecto Drive",
                            };
    foreach (var item in listProjects)
    {
        this.lpActivityType.Items.Add(item);
    }
}   

这些是错误:

Error 1 The property 'ExpansionMode' was not found in type 'ListPicker'. E:...\event_detail.xaml 123 69 FlyGolf_V1 Error 2 The member "ExpansionMode" is not recognized or is not accessible. E:...\event_detail.xaml 123 69 FlyGolf_V1

Answer 1

需要在toolkit:ListPicker中加入

ItemTemplate="{StaticResource ListPickerItemTemplate}"

和

FullModeItemTemplate="{StaticResource ListPickerFullModeItemTemplate}"

如下

<toolkit:ListPicker x:Name="lpActivityType" ExpansionMode="FullScreenOnly" Foreground="#676a6c" 
                    BorderBrush="#676a6c" Grid.Column="1" HorizontalAlignment="Center" 
                    VerticalAlignment="Center" Width="320" Height="Auto"
                    ItemTemplate="{StaticResource ListPickerItemTemplate}"
                    FullModeItemTemplate="{StaticResource ListPickerFullModeItemTemplate}">
</toolkit:ListPicker>

还有下面这个

<phone:PhoneApplicationPage.Resources>
    <DataTemplate x:Name="ListPickerItemTemplate">
        <StackPanel Orientation="Horizontal" Background="White">
            <TextBlock Text="{Binding}" Margin="0,0,0,0" 
                   FontWeight="Normal" Foreground="Black" FontSize="18" />
        </StackPanel>
    </DataTemplate>
    <DataTemplate x:Name="ListPickerFullModeItemTemplate">
        <StackPanel Orientation="Horizontal">
            <Grid Margin="0,0,0,0">
                <TextBlock Margin="0,2,0,0" Text="{Binding}"
                       FontSize="22" TextWrapping="Wrap" Height="Auto"  />
            </Grid>
        </StackPanel>
    </DataTemplate>
</phone:PhoneApplicationPage.Resources

在 shell:SystemTray.IsVisible="True" Loaded="PhoneApplicationPage_Loaded"> 之后和之前 <Grid>

并在.cs文件中添加

lpActivityType.ItemsSource = listProjects.ToList();