WPF如何使扩展器移动内容

Hi I wish to add WPF control to ElementHost in my WinForms application. The behavior of my control is depicted on picture. I wish expanding any expander make my treeview control resize to smaller size. And on the beginning I wish my expanders to be collapsed.

嗨，我希望在我的WinForms应用程序中添加WPF控件到ElementHost。我的控制行为如图所示。我希望扩展任何扩展器使我的treeview控件调整为更小的大小。一开始我希望我的扩张器倒塌。

I was trying sth like that:

我是这样尝试的：

<UserControl x:Class="LeftPane"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
         mc:Ignorable="d" >
<Grid VerticalAlignment="Stretch" Margin="3,3,3,3">
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto"/>
        <RowDefinition Height="*"/>            
    </Grid.RowDefinitions>
    <TreeView Grid.Row="0" Name="treeView1" VerticalAlignment="Stretch" >

    </TreeView>
    <StackPanel  Grid.Row="1" Name="StackPanel1" VerticalAlignment="Bottom">
        <ListBox SelectedIndex="1">
            <ListBoxItem VerticalAlignment="Stretch">
                <Expander Grid.Row="1" ExpandDirection="Down" Header="expander1" VerticalAlignment="Stretch" Name="expander1" IsExpanded="False">
                    <ListBox>
                        <ListBoxItem Content="Unit 1"/>
                        <ListBoxItem Content="Unit 2"/>
                    </ListBox>
                </Expander>
            </ListBoxItem>
            <ListBoxItem VerticalAlignment="Stretch">
                <Expander Grid.Row="2" ExpandDirection="Down" Header="expander2" VerticalAlignment="Stretch" Name="expander2" IsExpanded="False">
                    <ListBox>
                        <ListBoxItem Content="Unit 1"/>
                        <ListBoxItem Content="Unit 2"/>
                    </ListBox>
                </Expander>
            </ListBoxItem>
        </ListBox>
    </StackPanel>
</Grid>

and:

和：

public void AddControl(ElementHost host)
    {
        this.parentHost = host;
        host.Child = this;
        this.Height = host.Size.Height;
        treeView1.MaxHeight = this.Height - 60;

    }

But it doesn't work correctly. What is more I would like this control resize while I resize my winForms window.

但它无法正常工作。更重要的是，当我调整winForms窗口大小时，我希望此控件可以调整大小。

Can anyone help me how to set aligment etc.

任何人都可以帮我如何设置对等等

2 个解决方案

#1

This is how I would achieve this... first, I would change the Grid to the following:

这就是我实现这个目标的方法......首先，我将Grid更改为以下内容：

<Grid.RowDefinitions>
    <RowDefinition Height="*" />
    <RowDefinition Height="Auto" />
    <RowDefinition Height="Auto" />
</Grid.RowDefinitions>

This will provide the two Expander controls with as much space as they need and the TreeView with all of the rest:

这将为两个Expander控件提供所需的空间，并为所有其余的TreeView提供：

<TreeView Grid.Row="0" Name="treeView1" />
<Expander Grid.Row="1" Header="expander1" Name="expander1" IsExpanded="False">
    <ListBox>
        <ListBoxItem Content="Unit 1"/>
        <ListBoxItem Content="Unit 2"/>
    </ListBox>
 </Expander>
<Expander Grid.Row="2" Header="expander2" Name="expander2" IsExpanded="False">
    <ListBox>
        <ListBoxItem Content="Unit 1"/>
        <ListBoxItem Content="Unit 2"/>
    </ListBox>
 </Expander>

#2

To make my control resizable, I switched ElementHost property Dock to Fill.

为了使我的控件可调整大小，我将ElementHost属性Dock切换为Fill。

#1