带有 GridSplitter 的 WPF 扩展器
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/19516904/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
WPF Expander with GridSplitter
提问by Ilya Solovyev
In my WPF window (.NET 4.0) I have Grid with two columns: stretched textbox (or whatever) on the left side and Expander on the right. Also in Expander I have GridSplitter, which is intended to resize both left and right columns when Expander is expanded. But it doesn't work.
在我的 WPF 窗口 (.NET 4.0) 中，我有两列网格：左侧的拉伸文本框（或其他）和右侧的 Expander。同样在扩展器中，我有 GridSplitter，它旨在在扩展器展开时调整左右列的大小。但它不起作用。
This is my XAML code:
这是我的 XAML 代码：
<Window x:Class="WpfApplication10.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid ShowGridLines="True" >
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="Auto" Name="column"/>
</Grid.ColumnDefinitions>
<TextBox Grid.Column="0" HorizontalAlignment="Stretch" TextWrapping="Wrap"
Text="TextBox" VerticalAlignment="Stretch" Background="Aqua"/>
<Expander Grid.Column="1" Header="Expander" ExpandDirection="Left"
HorizontalAlignment="Right" Background="LightBlue" >
<Expander.Content>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="5"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<TextBlock Text="Some text Some text Some Text" Grid.Column="1"/>
<GridSplitter Grid.Column="0" Width="5"
ResizeBehavior="PreviousAndCurrent"
ResizeDirection="Columns"
HorizontalAlignment="Stretch"/>
</Grid>
</Expander.Content>
</Expander>
</Grid></Window>
Appropriate solution is found. XAML:
找到了合适的解决方案。XAML：
<Window x:Class="WpfApplication10.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<BooleanToVisibilityConverter x:Key="BoolToVisConverter"/>
</Window.Resources>
<Grid ShowGridLines="True">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" Name="leftColumn"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto" Name="rightColumn" />
</Grid.ColumnDefinitions>
<TextBox Grid.Column="0"
HorizontalAlignment="Stretch"
TextWrapping="Wrap"
Text="TextBox"
VerticalAlignment="Stretch"
Background="Aqua" />
<Expander Grid.Column="2"
Name="Expander"
Header="Expander"
ExpandDirection="Left"
Background="LightBlue"
Collapsed="Expander_Collapsed"
Expanded="Expander_Expanded" >
<TextBlock Text="Some text Some text Some Text" />
</Expander>
<GridSplitter Grid.Column="1"
Width="5"
ResizeBehavior="PreviousAndNext"
ResizeDirection="Columns"
VerticalAlignment="Stretch"
Height="Auto"
Visibility="{Binding ElementName=Expander, Path=IsExpanded,
Converter={StaticResource BoolToVisConverter}}"/>
</Grid></Window>
Code-behind:
代码隐藏：
private void Expander_Collapsed(object sender, RoutedEventArgs e)
{
leftColumn.Width = new GridLength(1, GridUnitType.Star);
rightColumn.Width = new GridLength(1, GridUnitType.Auto);
}
private void Expander_Expanded(object sender, RoutedEventArgs e)
{
rightColumn.Width = new GridLength(1, GridUnitType.Star);
}
采纳答案by XAMeLi
Your grid splitter works on the inner grid (in expander) and not on the main grid. Try this:
您的网格拆分器适用于内部网格（在扩展器中）而不是主网格。尝试这个：
<Window x:Class="WpfApplication10.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow"
Height="350"
Width="525">
<Grid ShowGridLines="True">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="5" />
<ColumnDefinition Width="Auto"
Name="column" />
</Grid.ColumnDefinitions>
<TextBox Grid.Column="0"
HorizontalAlignment="Stretch"
TextWrapping="Wrap"
Text="TextBox"
VerticalAlignment="Stretch"
Background="Aqua" />
<Expander Grid.Column="2"
Header="Expander"
ExpandDirection="Left"
Background="LightBlue">
<TextBlock Text="Some text Some text Some Text" />
</Expander>
<GridSplitter Grid.Column="1"
Width="5"
ResizeBehavior="PreviousAndNext"
ResizeDirection="Columns"
VerticalAlignment="Stretch"
Height="Auto" />
</Grid>
</Window>
Now you'd need to handle what happens to the last column when the user expands/collapses the expander.
现在您需要处理当用户展开/折叠扩展器时最后一列发生的情况。
回答by saurabh.mridul
Try this, if it helps to resolve your problem.
试试这个，如果它有助于解决您的问题。
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid ShowGridLines="True" >
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="Auto" Name="column"/>
</Grid.ColumnDefinitions>
<TextBox Grid.Column="0" HorizontalAlignment="Stretch" TextWrapping="Wrap"
Text="TextBox" VerticalAlignment="Stretch"/>
<Expander Grid.Column="1" Header="Expander" ExpandDirection="Left"
HorizontalAlignment="Right">
<Expander.Content>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="5"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<TextBlock Text="Some text Some text Some Text" Grid.Column="0"/>
<GridSplitter Grid.Column="1" Width="5"
ResizeBehavior="PreviousAndCurrent"
ResizeDirection="Columns"
HorizontalAlignment="Stretch"/>
</Grid>
</Expander.Content>
</Expander>
</Grid>
