C# WPF:使用GridSplitter隐藏网格行
调整拆分器大小后,如何隐藏最后两行? 隐藏最后两行时,webBrowser应填充所有区域C# WPF:使用GridSplitter隐藏网格行,c#,.net,wpf,C#,.net,Wpf,调整拆分器大小后,如何隐藏最后两行? 隐藏最后两行时,webBrowser应填充所有区域 <Grid> <Grid.RowDefinitions> <RowDefinition Height="*" /> <RowDefinition Height="5" /> <RowDefinition Height="Auto" /> </Grid.RowDefinitions
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="5" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<WebBrowser Name="webBrowser" />
<GridSplitter Grid.Row="1" ResizeDirection="Rows"
ResizeBehavior="PreviousAndNext" Width="Auto" Height="5"
HorizontalAlignment="Stretch"
Visibility="...">
</GridSplitter>
<c:MyControl Grid.Row="2" Visibility="..." />
</Grid>
在MyControl.ActualHeight上触发。如果为0,请将“可见性”设置为“折叠”
<DataTrigger Binding="{Binding ElementName=MyControl, Path=ActualHeight}" Value=0>
<Setter Property="Visibility" Value="Collapsed" />
</DataTrigger>
此问题的快速解决方法:
public class HideableGridSplitter : GridSplitter
{
private GridLength height;
public HideableGridSplitter()
{
this.IsVisibleChanged += HideableGridSplitter_IsVisibleChanged;
}
void HideableGridSplitter_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
Grid parent = base.Parent as Grid;
if (parent == null)
return;
int rowIndex = Grid.GetRow(this);
if (rowIndex + 1 >= parent.RowDefinitions.Count)
return;
var lastRow = parent.RowDefinitions[rowIndex + 1];
if (this.Visibility == Visibility.Visible)
lastRow.Height = height;
else
{
height = lastRow.Height;
lastRow.Height = new GridLength(0);
}
}
}
问题:隐藏MyControl和GridSplitter后,webBrowser的高度与隐藏前相同。WebBrowser并没有填满整个区域。如何拉伸webBrowser?@Rover-将隐藏切换为折叠,我将更新我的答案。我忘了“隐藏”仍然会占用布局中的空间,而“折叠”则不会。@Rachel,“隐藏”在使用可见性调整大小之前效果很好。但在调整大小和隐藏后,webBrowser的高度并没有改变。它不依赖于MyControl.Visibility(隐藏或折叠)。@Rover您是否将WebBrowser控件中的水平/垂直对齐设置为拉伸?尝试将中间行的高度改为“自动”,而不是“自动”5@Rachel,它也不起作用。我还尝试删除MyControl-效果相同。如果lastRow指定了MinHeight属性,则需要将其添加到最终的If/else块中。