可以包含其他控件的C＃用户控件（使用时）

I found something about this issue for ASP, but it didn't help me much ...

我在ASP中发现了一些关于这个问题的东西，但它对我帮助不大......

What I'd like to do is the following: I want to create a user control that has a collection as property and buttons to navigate through this collection. I want to be able to bind this user control to a collection and display different controls on it (containing data from that collection). Like what you had in MS Access on the lower edge of a form ...

我想要做的是以下内容：我想创建一个用户控件，它具有一个集合作为属性和按钮来浏览此集合。我希望能够将此用户控件绑定到一个集合并在其上显示不同的控件（包含该集合中的数据）。就像你在表格下边缘的MS Access中所拥有的一样......

to be more precise:

更确切地说：

When I actually use the control in my application (after I created it), I want to be able to add multiple controls to it (textboxes, labels etc) between the <myControly> and </mycontrol> If I do that now, the controls on my user control disappear.

当我在我的应用程序中实际使用该控件时（在我创建它之后），我希望能够在和之间添加多个控件（文本框，标签等）。如果我现在这样做，我的用户控件上的控件消失了。

4 个解决方案

#1

Here is an example of one way to do what you want:

以下是一种实现您想要的方法的示例：

First, the code - UserControl1.xaml.cs

首先，代码 - UserControl1.xaml.cs

public partial class UserControl1 : UserControl
{
    public static readonly DependencyProperty MyContentProperty =
        DependencyProperty.Register("MyContent", typeof(object), typeof(UserControl1));


    public UserControl1()
    {
        InitializeComponent();
    }

    public object MyContent
    {
        get { return GetValue(MyContentProperty); }
        set { SetValue(MyContentProperty, value); }
    }
}

And the user control's XAML - UserControl1.xaml

而用户控件的XAML - UserControl1.xaml

<UserControl x:Class="InCtrl.UserControl1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Height="300" Width="300" Name="MyCtrl">
    <StackPanel>
        <Button Content="Up"/>
        <ContentPresenter Content="{Binding ElementName=MyCtrl, Path=MyContent}"/>
        <Button Content="Down"/>
    </StackPanel>
</UserControl>

And finally, the xaml to use our wonderful new control:

最后，xaml使用我们精彩的新控件：

<Window x:Class="InCtrl.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:me="clr-namespace:InCtrl"
    Title="Window1" Height="300" Width="300">
    <Grid>
        <me:UserControl1>
            <me:UserControl1.MyContent>
                <Button Content="Middle"/>
            </me:UserControl1.MyContent>
        </me:UserControl1>
    </Grid>
</Window>

#2

I'm having a hard time understanding your question, but I think what you're describing is an ItemsControl using DataTemplates to display the contents of (presumably) an ObservableCollection(T).

我很难理解你的问题，但我认为你所描述的是一个使用DataTemplates的ItemsControl来显示（可能是）ObservableCollection（T）的内容。

#3

A UserControl may not be the best way to do this. You're wanting to add decorations around content, which is basically what Border does: it has a child element, and it adds its own stuff around the edges.

UserControl可能不是最好的方法。你想要在内容周围添加装饰，这基本上就是Border所做的：它有一个子元素，它在边缘附加了自己的东西。

Look into the Decorator class, which Border descends from. If you make your own Border descendant, you should be easily able to do what you want. However, I believe this would require writing code, not XAML.

查看Decorator类，它是Border的后代。如果你自己制作边境后裔，你应该可以轻松地做你想做的事。但是，我认为这需要编写代码，而不是XAML。

You might still want to make a UserControl to wrap the buttons at the bottom, just so you can use the visual designer for part of the process. But Decorator would be a good way to glue the pieces together and allow for user-definable content.

您可能仍希望创建一个UserControl来将按钮包装在底部，这样您就可以使用可视化设计器来完成部分过程。但是Decorator是将各个部分粘合在一起并允许用户可定义内容的好方法。

#4

Here's a link to a built-in control (HeaderedContentControl) that does the same thing as the accepted answer except that it is an existing control in WPF since .Net 3.0

这是一个内置控件（HeaderedContentControl）的链接，它与接受的答案做同样的事情，除了它是WPF中的现有控件，因为.Net 3.0

#1