我怎样才能绑定此控件模板里面呢？ [英] How can I bind inside this ControlTemplate?

问题描述

我有一个的ListView ，充满了列表＆LT; MyListItem＆GT; ，我需要使用控件模板，能够当选择一个项目，更改的影响。现在我有一个问题{myProperty的绑定} 不里面的控件模板工作。如何访问 MyListItem 属性的模板中？

I have a ListView, filled with a List<MyListItem> and I need to use a ControlTemplate to be able to change the effects when an item is selected. Now I have the problem that {Binding MyProperty} doesn't work inside of that ControlTemplate. How can I access the properties of MyListItem inside the template?

我的XAML看起来像这样（简体）：

My XAML looks like this(simplified):

<ListView
        Name="ListView"
        Grid.Column="1"
        IsSwipeEnabled="False">

        <ListView.ItemContainerStyle>
            <Style TargetType="ListViewItem">
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="ListViewItem">
                            <Grid>
                                <VisualStateManager.VisualStateGroups>
                                    <VisualStateGroup x:Name="CommonStates">
                                        <VisualState x:Name="Normal"/>
                                    </VisualStateGroup>
                                    <VisualStateGroup x:Name="SelectionStates">
                                        <VisualState x:Name="Unselected">
                                            <Storyboard>
                                                <ColorAnimation Duration="0" Storyboard.TargetName="myColoredText" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="Orange"/>
                                            </Storyboard>
                                        </VisualState>
                                        <VisualState x:Name="SelectedUnfocused">
                                            <Storyboard>
                                                <ColorAnimation Duration="0" Storyboard.TargetName="myColoredText" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="Red"/>
                                            </Storyboard>
                                        </VisualState>
                                    </VisualStateGroup>
                                </VisualStateManager.VisualStateGroups>

                                <!-- Here I have my custom layout, removed for readability -->
                                <TextBlock
                                    Name="myColoredText"
                                    Foreground="Green"
                                    Text="{Binding MyProperty}"/><!-- This does not work -->

                            </Grid>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
            </Style>
        </ListView.ItemContainerStyle>
    </ListView>

下面是此XAML背后的类：

Here is the class behind this XAML:

public sealed partial class MyPage : Page
{
    public MyPage()
    {
        InitializeComponent();
        ListView.ItemsSource = new List<MyListItem>()
        {
            new MyListItem("Title1", "SubTitle1"),
            new MyListItem("Title2", "SubTitle2")
        }
    }
}

和MyListItem类：

and the MyListItem class:

class MyListItem
{
    public string MyProperty { get; set; }
    public string MyOtherProperty { get; set; }

    public MyListItem(string myProperty, string myOtherProperty)
    {
        MyProperty = myProperty;
        MyOtherProperty = myOtherProperty;
    }
}

这个问题最小的项目：

Smallest project with the problem:

项目

推荐答案

在文本框，使用：

Text="{Binding Content.MyProperty, 
               RelativeSource={RelativeSource TemplatedParent}}"

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