在另一个滚动查看器中使用ScrollViewer [英] Use ScrollViewer inside another Scrollviewer

问题描述

我的wpf应用程序的结构如下所示：

The structure of my wpf application is like:

<Scrollviewer>
   <Grid>
       <Scrollviewer>
            <DataGrid>

我的目标是，如果DataGrid超过屏幕的高度以使用它自己的Scrollviewer。在这一刻，只有外部的ScrollViewer被使用，所以我必须滚动整个网格。

My Goal is, if the DataGrid exceeds the height of the screen to use it's own Scrollviewer. At the Moment only the outside ScrollViewer is used and so i have to scroll the whole Grid.

有人可以告诉我怎么做？

Can someone please tell me how to do this?

推荐答案

您需要在内部ScrollViewer上设置一个高度，否则它会根据内容的大小尽可能地扩展。

You need to set a height on the inner ScrollViewer, otherwise it'll stretch as much as it needs based on it's content's size.

<Window x:Name="RootWindow">
    <ScrollViewer>
        <Grid Height="{Binding ElementName=RootWindow, Path=ActualHeight}">
            <Grid.RowDefinitions>
                <RowDefinition Height="*" />
                <RowDefinition Height="2*" />
            </Grid.RowDefinitions>

            <ScrollViewer Grid.Row="1">
                <DataGrid />
            </ScrollViewer>
        </Grid>
    </ScrollViewer>
</Window>

另外，DataGrid为它自己的ScrollBars提供了内置属性，您可以使用它来替代封装DataGrid在ScrollViewer中。这将滚动数据并始终保持标题可见，而不是滚动整个数据网格。

Also, the DataGrid has built-in properties for it's own ScrollBars which you can use instead of wrapping the DataGrid in a ScrollViewer. This will scroll the data and always leave the headers visible, instead of scrolling the entire datagrid.

<DataGrid HorizontalScrollBarVisibility="Auto" 
          VerticalScrollBarVisibility="Auto" />

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