是否可以将用户控件放在文档查看器中?如果可能,它会是怎样的?
问问题
3961 次
1 回答
4
您可以使用以下..
编辑
添加了一个Grid
将其绑定Width/Height
到的FixedPage
ActualWidth/ActualHeight
以实现居中
<DocumentViewer>
<FixedDocument>
<PageContent>
<FixedPage HorizontalAlignment="Center">
<Grid Width="{Binding RelativeSource={RelativeSource AncestorType={x:Type FixedPage}},
Path=ActualWidth}"
Height="{Binding RelativeSource={RelativeSource AncestorType={x:Type FixedPage}},
Path=ActualHeight}">
<local:MyUserControl HorizontalAlignment="Center"/>
</Grid>
</FixedPage>
</PageContent>
</FixedDocument>
</DocumentViewer>
不幸的是,Visual Studio 2010 设计器在此处损坏,您将收到一条消息,提示“属性‘页面’不支持‘PageContent’类型的值。
此处报告:WPF FixedDocument 对象不允许 PageContent 子级
作为一种解决方法,您可以在后面的代码中加载它
Xaml
<DocumentViewer>
<FixedDocument Loaded="FixedDocument_Loaded"/>
</DocumentViewer>
背后的代码
private void FixedDocument_Loaded(object sender, RoutedEventArgs e)
{
FixedDocument fixedDocument = sender as FixedDocument;
MyUserControl myUserControl = new MyUserControl();
myUserControl.HorizontalAlignment = HorizontalAlignment.Center;
myUserControl.VerticalAlignment = VerticalAlignment.Center;
Grid grid = new Grid();
grid.Children.Add(myUserControl);
FixedPage fixedPage = new FixedPage();
fixedPage.Children.Add(grid);
Binding widthBinding = new Binding("ActualWidth");
widthBinding.Source = fixedPage;
Binding heightBinding = new Binding("ActualHeight");
heightBinding.Source = fixedPage;
grid.SetBinding(Grid.WidthProperty, widthBinding);
grid.SetBinding(Grid.HeightProperty, heightBinding);
PageContent pageContent = new PageContent();
(pageContent as IAddChild).AddChild(fixedPage);
fixedDocument.Pages.Add(pageContent);
}
于 2011-08-12T06:33:21.833 回答