滚动一个非常大的TextBlock [英] Scrolling a very big TextBlock

问题描述

论坛，

我想要显示非用户可编辑的文字，大约有200,000个字符值得精确。 我想将它粘贴在ScrollViewer的TextBlock中，但滚动非常非常慢。 我在下面有以下XAML：

I have non-user-editable text I'd like to show, about 200,000 characters worth to be precise.  I wanted to stick it in a TextBlock in a ScrollViewer, but it's very, very slow to scroll.  I have the following XAML below:

<Grid Name="grdMain" Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
        <ScrollViewer Height="{Binding Path=ActualHeight, ElementName=grdMain}"
                      Width="{Binding Path=ActualWidth, ElementName=grdMain}">
            <TextBlock Name="txtOutput" TextWrapping="Wrap"
                       FontSize="18" >
                
            </TextBlock>
        </ScrollViewer>
    </Grid>

切换到TextBox会让它更快。 我想知道这是否是TextBlock的工作方式，或者是否有办法使滚动顺畅。  FWIW，这个确切的XAML在WPF应用中同样慢（减去主题画笔）。

Switching to a TextBox makes it faster.  I would like to know if that is just how TextBlock works or if there is a way to make the scrolling smooth.  FWIW, this exact XAML is just as slow in a WPF app (minus the theme brush).

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推荐答案

如果一个文本框速度更快，为什么不使用带有isEnable = false的文本框，然后更改文本块之类的样式。

If one textbox is more fast, why you don´t use a textbox with isEnable = false and then change the style for something like a textblock.

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