Windows phone 7 如何在数据模板中选择文本框

在为WindowsPhone7编程时，我创建了一个列表框，并使用了包含textblock和textbox的DataTemplate。默认情况下，文本框处于隐藏状态

XAML：

<ListBox>
        <ListBox.ItemTemplate>
            <DataTemplate>
                <Canvas Width="460" Height="60" Background="{StaticResource PhoneAccentBrush}">
                    <TextBlock Text="{Binding data}" FontSize="30" Margin="10,10,10,0"/>
                    <TextBox Height="60" Width="460" Visibility="Collapsed"/>
                </Canvas>
            </DataTemplate>
        </ListBox.ItemTemplate>
</ListBox>

---

然而，显然选择器是不正确的。我试图为textbox和textblock添加名称，但该名称在数据模板中似乎不起作用。有人能告诉我如何在数据模板中选择文本块和文本框吗？非常感谢

在模板上设置名称确实有效，但您不能直接访问它

相反，可以这样尝试：

<ListBox x:Name="MyListBox">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <Canvas Width="460" Height="60" Background="{StaticResource PhoneAccentBrush}">
                <TextBlock x:Name="MyTextBlock" Text="{Binding data}" FontSize="30" Margin="10,10,10,0" Tap="MyTextBlock_Tap" />
                <TextBox x:Name="MyTextBox" Height="60" Width="460" Visibility="Collapsed"/>
            </Canvas>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

试试这个：

<ListBox Name="lst"  >
                <ListBox.ItemTemplate>
                    <DataTemplate>
                        <Canvas Width="460" Height="60" Background="{StaticResource PhoneAccentBrush}" Tap="Canvas_Tap">
                            <TextBlock Text="{Binding}" FontSize="30" Margin="10,10,10,10"/>
                            <TextBox Height="60" Width="460" Visibility="Collapsed" Text="text"/>
                        </Canvas>
                    </DataTemplate>
                </ListBox.ItemTemplate>
            </ListBox>

---

嗨，Pedro，我尝试了你的代码，但是Visual Studio为GetTemplateChild报告了错误。我错过什么了吗？这次代码运行得非常好！！你真的救了我的命，伙计：）太谢谢你了！！我试过你的代码，发现它也很好用。我爱你们！英雄联盟

private void MyTextBlock_Tap(object sender, GestureEventArgs e)
{
    var elem = (FrameworkElement)sender;

    var myTextBlock = (TextBlock)elem.FindName("MyTextBlock");
    var myTextBox = (TextBox)elem.FindName("MyTextBox");

    myTextBlock.Visibility = Visibility.Collapsed;
    myTextBox.Visibility = Visibility.Visible;
}

<ListBox Name="lst"  >
                <ListBox.ItemTemplate>
                    <DataTemplate>
                        <Canvas Width="460" Height="60" Background="{StaticResource PhoneAccentBrush}" Tap="Canvas_Tap">
                            <TextBlock Text="{Binding}" FontSize="30" Margin="10,10,10,10"/>
                            <TextBox Height="60" Width="460" Visibility="Collapsed" Text="text"/>
                        </Canvas>
                    </DataTemplate>
                </ListBox.ItemTemplate>
            </ListBox>

private void Canvas_Tap(object sender, System.Windows.Input.GestureEventArgs e)
        {

            var m = (sender as Canvas).Children;

            foreach (UIElement x in m)
            {
                if ((x as TextBlock) != null)
                    (x as TextBlock).Visibility = Visibility.Collapsed;
                if ((x as TextBox) != null)
                    (x as TextBox).Visibility = Visibility.Visible;                
            }
        }