如何在 wpf 中将滚动查看器大小设置为父级的网格大小
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How to set the scrollviewer size to the parent's grid size in wpf
提问by SagarDabas
I have a popup control in a grid and I want it to resize to the parent grid size. As you can see the parent grid area is in Green color and the popup is in LightCyan color. The area in the LightCyan should cover the whole green area. And I think I have to set the Scrollviewer width and height to the parent's width and height but that didn't work. Please reply. Thanks
我在网格中有一个弹出控件，我希望它调整到父网格的大小。如您所见，父网格区域为绿色，弹出窗口为浅青色。LightCyan 中的区域应覆盖整个绿色区域。而且我想我必须将 Scrollviewer 的宽度和高度设置为父级的宽度和高度，但这不起作用。请回复。谢谢
I am adding different stuff in the LinePopGrid using code.
我正在使用代码在 LinePopGrid 中添加不同的东西。
<Grid Background="Green">
<Popup x:Name="LinePopUp" IsOpen="True" Placement="Relative" >
<ScrollViewer CanContentScroll="True" VerticalScrollBarVisibility="Auto">
<Grid Background="LightCyan" x:Name="LinePopUpGrid" />
</ScrollViewer>
</Popup>
</Grid>
回答by Rohit Vats
You need to bind PopUp widthand heightto Grid's ActualWidthand ActualHeightrespectively -
您需要绑定弹出width和height网格的ActualWidth和ActualHeight分别为-
<Grid Background="Green">
<Popup x:Name="LinePopUp" IsOpen="True" Placement="Relative"
Width="{Binding ActualWidth,RelativeSource={RelativeSource
Mode=FindAncestor, AncestorType=Grid}}"
Height="{Binding ActualHeight,RelativeSource={RelativeSource
Mode=FindAncestor, AncestorType=Grid}}">
<ScrollViewer CanContentScroll="True"
VerticalScrollBarVisibility="Auto">
<Grid Background="LightCyan" x:Name="LinePopUpGrid" />
</ScrollViewer>
</Popup>
</Grid>
