本文介绍了访问 c# 中 contentpresenter 中的控件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
限时送ChatGPT账号..如何访问位于 contentpresenter 的内容模板中的命名控件.如何从 cs 文件访问 webview 控件(x:name=detView).
How to access a named control that is in the content template of the contentpresenter. how to access the webview control(x:name=detView) from cs file.
<ContentPresenter
x:Name="DetailContentPresenter"
Grid.Row="0"
BorderBrush="{ThemeResource SystemControlForegroundBaseLowBrush}"
Content="{x:Bind coll.SelectedItem,Mode=OneWay}">
<ContentPresenter.ContentTemplate>
<DataTemplate x:DataType="data:coll_Details" x:Name="ttt">
<Grid>
<WebView DefaultBackgroundColor="#F5F5F5" x:Name="detView" Source="ms-appx-web:///Assets/Web/collDetails.html"/>
</Grid>
</DataTemplate>
</ContentPresenter.ContentTemplate>
<ContentPresenter.ContentTransitions>
<TransitionCollection/>
</ContentPresenter.ContentTransitions>
</ContentPresenter>
推荐答案
如果您像 官方文档.
您可以通过controlName.ContentTemplateRoot
获取模板.我根据上面官方文档的Example做了一个demo,在DataTemplate里面放了一个webview.
You can get the template through the controlName.ContentTemplateRoot
. I made a demo from the Example of official documentation above, and put a webview inside the DataTemplate.
MainPage.xaml:
MainPage.xaml:
<Page.Resources>
<Style TargetType="HyperlinkButton" x:Key="myStyle" >
...
<Setter Property="Template" x:Name="presenterSetter">
<Setter.Value>
<ControlTemplate TargetType="HyperlinkButton">
<Grid x:Name="rootGrid">
...
<Border x:Name="Border"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Margin="3">
<ContentPresenter x:Name="MyContentPresenter"
Content="{TemplateBinding Content}"
ContentTransitions="{TemplateBinding ContentTransitions}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
>
<ContentPresenter.ContentTemplate>
<DataTemplate x:Name="ttt">
<Grid>
<WebView Source="ms-appx-web:///Assets/Web/default.html" Name="myWebView"/>
</Grid>
</DataTemplate>
</ContentPresenter.ContentTemplate>
</ContentPresenter>
</Border>
<!--focus visuals omitted-->
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<StackPanel VerticalAlignment="Bottom">
<HyperlinkButton Name="myHyperlink" Style="{StaticResource myStyle}">This is a link</HyperlinkButton>
<Button Click="Button_Click" Name="myBtn">Click Me</Button>
</StackPanel>
</Grid>
我可以使用以下代码获取 WebView:
And I can get the WebView using the codes below:
private void Button_Click(object sender, RoutedEventArgs e)
{
var myView= ((Grid)myHyperlink.ContentTemplateRoot).Children[0] as WebView;
}
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