WPF 自定义控件和直接内容支持 [英] WPF custom control and direct content support

问题描述

我对 WPF 还很陌生，有点卡住了，所以任何帮助将不胜感激.

I am fairly new to WPF, and am a bit stuck, so any help would be appreciated.

我正在尝试编写 WPF 自定义控件，该控件封装了我已经在使用的几个功能元素(即排序、过滤、标准菜单等)，但封装在一个漂亮整洁的包中以避免重复.

I am trying to write WPF custom control that encapsulates several elements of functionality that I already having working (i.e sorting, filtering, standard menus, etc.), but in a nice neat package to avoid repetition.

无论如何我已经创建了自定义控件(基于控件)，然后在 Generic.Xaml 中有以下内容

Anyway I have created the custom control (based on control), and then have the following in the Generic.Xaml

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:Controls.ListViewExtended">
    <Style TargetType="{x:Type local:ListViewExtended}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type local:ListViewExtended}">
                    <Border Background="{TemplateBinding Background}"
                            BorderBrush="{TemplateBinding BorderBrush}"
                            BorderThickness="{TemplateBinding BorderThickness}">
                        <ListView>
                            <ListView.View>
                                <GridView>
                                <!-- Content goes here -->                             
                                </GridView> 
                            </ListView.View>
                        </ListView>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

当我尝试添加 GridViewColumns(或任何控件)时，如下...

When I try to add GridViewColumns (or any control really), as below ...

<elv:ListViewExtended>
   <GridView>
        <GridViewColumn Width="140" Header="Column 1" />
        <GridViewColumn Width="140" Header="Column 2" />
        <GridViewColumn Width="140" Header="Column 3" />
   </GridView>
</elv:ListViewExtended>

我收到...不支持直接内容"错误.

我已经创建了一个允许添加 GridView 的依赖属性(再次在下面)，但它仍然不起作用.

I have created a dependancy property (again below) that allows the adding of GridView, but it still doesn't work.

public static DependencyProperty GridViewProperty;

public static string GridViewHeader(DependencyObject target) 
{
    return (string)target.GetValue(GridViewProperty); 
}
public static void GridViewHeader(DependencyObject target, string value) 
{
    target.SetValue(GridViewProperty, value); 
} 

提前致谢

推荐答案

从 ListView 继承您的自定义控件，而不是从 Control.这肯定会导致您更改模板，但我鼓励您阅读更多有关如何操作的文档(例如 Sacha Barber 的文章:创建和使用自定义 WPF 控件).

Inherit your custom control from the ListView, not from the Control. This would definitely cause you to change the template, but I encourage you to read more documentation on how to do it (e.g. Sacha Barber's article: Creating and consuming a custom WPF control).

祝你学习顺利！

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