Wpf Prism 为 ItemControl(区域中的视图)的每个项目提供样式 [英] Wpf Prism give style to each items of a ItemControl (Views in a Region)

问题描述

我有一个 WPF Prism 项目，它有一个基于 ItemControl 的 Region :

I have a WPF Prism project and it has a Region base on ItemControl:

<ItemsControl prism:RegionManager.RegionName="WorkspaceRegion" >

在这个 ItemControl 中，我可以很好地看到我的一些 Views，但我想为 ItemControl<的每个 Item 赋予一个样式/code>(每个 View).

In this ItemControl i see some of my Views verticaly well but i want give a style to each Item of ItemControl (each View).

所有项目(视图)必须具有相同的样式(例如:背景颜色、内边距、边距、边框和...)

All of items (views) must have same style (for example: background color, padding, margin, border and...)

我想要这样的东西(例如):

I want something like this (for example):

我使用了这样一个简单的样式和代码:

I used a simple style and code like this:

<ItemsControl prism:RegionManager.RegionName="WorkspaceRegion"  Background="#765e4d" Margin="10">
    <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <StackPanel/>
        </ItemsPanelTemplate>
    </ItemsControl.ItemsPanel>

    <ItemsControl.ItemContainerStyle>
        <Style>
            <Setter Property="Control.Template">
                <Setter.Value>
                    <ControlTemplate>
                        <Border BorderBrush="Red" Padding="10" BorderThickness="1" CornerRadius="5">
                            <ContentPresenter Content="{Binding}"/>
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </ItemsControl.ItemContainerStyle>

</ItemsControl>

它的错误:

用于类型ItemsControl"的样式不能应用于类型'视图 1'

A style intended for type 'ItemsControl' cannot be applied to type 'View1'

我也测试了这个代码:

<ItemsControl prism:RegionManager.RegionName="WorkspaceRegion"  Background="#765e4d" Margin="10">
    <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <StackPanel/>
        </ItemsPanelTemplate>
    </ItemsControl.ItemsPanel>

    <ItemsControl.ItemTemplate>
        <DataTemplate>
            <Grid >
                <TextBlock Text="Test"/>
                <Border BorderBrush="Red" Padding="10" Margin="10" BorderThickness="1" CornerRadius="5">
                    <ContentPresenter Content="{Binding}"/>
                </Border>
            </Grid>
        </DataTemplate>
    </ItemsControl.ItemTemplate>
</ItemsControl>

但结果就像我写的:

<ItemsControl prism:RegionManager.RegionName="WorkspaceRegion" >

• 为什么?我的错误是什么?

• Why? What is my mistake?

我该怎么做?

编辑 1:

我使用了 <ItemsPresenter/> 而不是 <ContentPresenter Content="{Binding}"/>

结果:没有任何变化

编辑 2:

我为 ItemsControl 的 ItemContainerStyle 属性编写了此样式，并且它可以如果我从中删除 ControlTemplate 部分.

I write this style for ItemContainerStyle property of the ItemsControl and it works if i remove ControlTemplate part from it.

现在的问题是我应该在以下 ControlTemplate 中使用哪种 Presenter 或 Xaml Tag 到我的 视图 (UserControls) 被显示.

Now the question is which kind of Presenter or Xaml Tag i should use inside the following ControlTemplate to my Views (UserControls) be shown.

   <Style TargetType="{x:Type UserControl}" x:Key="MyItemContainerStyle">
        <Setter Property="Background" Value="Brown"/>
        <Setter Property="BorderBrush" Value="Blue"/>
        <Setter Property="BorderThickness" Value="2"/>
        <Setter Property="Margin" Value="10"/>
        <Setter Property="Template" >
            <Setter.Value>
                <ControlTemplate>
                     ??????????????????????????
                    <!-- The following ContentPresenter not working and the Items dose not show -->
                    <ContentPresenter/> 
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

推荐答案

设置样式的 ContentTemplate 属性，而不是 Control.Template 或 Template

Set the ContentTemplate property of the style, not Control.Template or Template

一个 ItemsControl 被渲染成这样:

An ItemsControl gets rendered like this :

<ItemsControl>
    <ItemsPanel>
        <ContentPresenter>
            <ItemTemplate>
        </ContentPresenter>

        <ContentPresenter>
            <ItemTemplate>
        </ContentPresenter>

        <ContentPresenter>
            <ItemTemplate>
        </ContentPresenter>
    </ItemsPanel>
</ItemsControl>

ItemContainerStyle 适用于包装此 XAML 树中每个项目的 ContentPresenter 对象，我不相信 ContentPresenterControl.Template 或 Template 属性.

The ItemContainerStyle applies to the ContentPresenter object that wraps each item in this XAML tree, and I don't believe a ContentPresenter has either a Control.Template or a Template property.

当更改 ContentPresenter 的显示方式时，您应该改写 ContentTemplate 属性.

When changing how a ContentPresenter is displayed you should overwrite the ContentTemplate property instead.

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