为什么我的DataTemplate没有自动应用 [英] Why isn't my DataTemplate applied automatically

问题描述

你好！
今天，我还有一个我找不到解决方案的问题.
我的窗口的资源"部分中包含以下数据模板:

Hi there!
Today I have another question I cannot find a solution for.
I have the following data templates in the Ressources-Section of my window:

<DataTemplate DataType="x:Type crosswordFields:EmptyField">
            <TextBlock MouseDown="FieldSelected" Width="20" Height="20" Tag="{Binding Tag}" Text="-">
            </TextBlock>
        </DataTemplate>
        <DataTemplate x:Key="BuildCrosswordDataTemplate">
            <ListView ItemsSource="{Binding}">
                <ListView.ItemsPanel>
                    <ItemsPanelTemplate>
                        <StackPanel Orientation="Horizontal"></StackPanel>
                    </ItemsPanelTemplate>
                </ListView.ItemsPanel>
            </ListView>
        </DataTemplate>

第一个是我要在ListView中显示的数据结构的模板，第二个是ListView本身的模板，如下所示:

The first would be the template for my data structure i want to show in my ListView, the second one is the template for the ListView itself, which looks like the following:

<ListView Grid.Row="0" Name="lvBuildCrossword" ItemTemplate="{StaticResource BuildCrosswordDataTemplate}"></ListView>

如您所见，这是一个包含其他ListView的ListView，但我认为这并不重要.
我现在的问题是，我没有显示一个显示-"的TextBlocks网格，而是用一个包含"Crossword.CrosswordFields.EmptyField"的块填充了一个网格.为什么WPF不使用为DataType ="x:Type crosswordFields:EmptyField"定义的DataTemplate，而是通过ToString()的默认可视化效果?

我希望有人可以指出我.
问候，
Markus

As you can see, this is a ListView which contains further ListView''s, but I don''t think that that matters.
My problem now is, instead of showing a grid of TextBlocks which show an "-", i get a grid filled with Blocks containing "Crossword.CrosswordFields.EmptyField". Why isn''t WPF using the DataTemplate defined for DataType="x:Type crosswordFields:EmptyField" but the default visualization via ToString()?

I hope someone can point me out.
Greets,
Markus

推荐答案

最后，我自己发现了它:
数据类型已被写入

Finally, I found it out myself:
The datatype has be be written

DataType="{x:Type crosswordFields:EmptyField}">

而不是

and not

DataType="x:Type crosswordFields:EmptyField">

缺少的括号未突出显示，但导致其无法正确运行.
但是至少我发现了:P

The missing brackets don''t get highlighted, but causing it not to run correct.
But at least I found it out :P

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