仅具有LayoutDocumentPane的简单AvalonDock应用程序。
XAML:
<Window x:Name="MainWindow1" x:Class="AvalonTest2.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:xcad="http://schemas.xceed.com/wpf/xaml/avalondock"
Title="MainWindow" Height="350" Width="525" Loaded="MainWindow1_Loaded">
<Grid Name="MainGrid" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<ToolBar Grid.Row="0" Grid.Column="0">
<Button Content="New Tab" Margin="10,0,0,0" Click="NewTabClick"/>
<Button Content="Save layout" Margin="10,0,0,0" Click="Button_Click"/>
</ToolBar>
<xcad:DockingManager x:Name="dockManager" Grid.Row="1">
<xcad:LayoutRoot x:Name="_layoutRoot">
<xcad:LayoutPanel Orientation="Horizontal" x:Name="_layoutPanel">
<xcad:LayoutDocumentPane x:Name="workSpace">
<xcad:LayoutDocument ContentId="dummy" Title="Dummy" >
<Button x:Name="dummyButton" Content="Dummy Content" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</xcad:LayoutDocument>
</xcad:LayoutDocumentPane>
</xcad:LayoutPanel>
</xcad:LayoutRoot>
</xcad:DockingManager>
</Grid>
</Window>
码:
using System;
using System.IO;
using System.Windows;
using Xceed.Wpf.AvalonDock.Layout;
using Xceed.Wpf.AvalonDock.Layout.Serialization;
namespace AvalonTest2
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void NewTabClick(object sender, RoutedEventArgs e)
{
var ld = new LayoutDocument();
var x = new Random().Next().ToString();
ld.Title = x;
ld.ContentId = x;
workSpace.Children.Add(ld);
}
private void Button_Click(object sender, RoutedEventArgs e)
{
var layoutSerial = new XmlLayoutSerializer(dockManager);
layoutSerial.Serialize("layout.xml");
}
private void MainWindow1_Loaded(object sender, RoutedEventArgs e)
{
if (File.Exists("layout.xml"))
{
// var serializer = new XmlLayoutSerializer(dockManager);
// serializer.Deserialize("layout.xml");
}
}
}
}
我按“新建标签”按钮,一切正常:出现新标签。
我重新启动程序,保存布局(“保存布局”按钮),关闭程序并删除反序列化行上的注释。
我启动程序,然后按“新建选项卡”,没有选项卡出现。我将在LayoutDocumentPane(workSpace)内查看,“ Children”属性充满了新的Documents。
怎么了?
最佳答案
不幸的是,(反)序列化功能在AvalonDock
套件中实现的不是很好。
反序列化时,将创建一个全新的LayoutRoot
对象。您在XAML中定义一个名称为LayoutDocumentPane
的workSpace
,并将新创建的LayoutDocument
添加到此窗格中。但是,在反序列化之后,该LayoutDocumentPane
不再属于布局-已被删除;而是创建了一个新的LayoutDocumentPane
。
因此,您看不到添加到LayoutDocument
容器中的任何workSpace
视图。
不要按名称引用您的LayoutDocumentPane
实例,而是动态查找它。您必须将代码更改为:
var ld = new LayoutDocument();
var x = new Random().Next().ToString();
ld.Title = x;
ld.ContentId = x;
LayoutDocumentPane documentPane = this.dockManager.Layout.Descendents().OfType<LayoutDocumentPane>().SingleOrDefault();
if (documentPane != null)
{
documentPane.Children.Add(ld);
}