[英]XAML Binding data of an XML attribute and displaying its value
I am making simple RSS reader for Windows Phone which reads an XML file using XML Serializer and displays the list of items. 我正在为Windows Phone制作简单的RSS阅读器,该阅读器使用XML序列化器读取XML文件并显示项目列表。 I have Rss.css file and amongst others I have item class (below fragment): 我有Rss.css文件,除其他外,我还有项目类(下面的片段):
public class Item
{
[XmlElement("title")]
public string Title { get; set; }
[XmlElement("link")]
public string Link { get; set; }
}
And I am binding data in XAML files and displaying eg title field like this: 我将数据绑定到XAML文件中并显示例如标题字段,如下所示:
<ListView Grid.Row="1" ItemsSource="{Binding Rss.Channel.Items}">
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="150" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding Title}"/>
etc., and it's working fine. 等,并且工作正常。 Now, let's say that in the XML title has an attribute, eg short="true". 现在,假设XML标题中有一个属性,例如short =“ true”。 How do I bind and display this attribute? 如何绑定和显示此属性?
I tried to create another class under Item class: 我试图在Item类下创建另一个类:
public class Title
{
[XmlAttribute("short")]
public string Short { get; set; }
}
and simply bind the attribute like this: 并像这样简单地绑定属性:
<TextBlock Text="{Binding Title.Short}"/>
but it's not working. 但它不起作用。 Can I "reach" it in XAML somehow or should I change something in the .cs file? 我可以以某种方式在XAML中“到达”它还是应该更改.cs文件中的内容?
PS. PS。 The given example is a shorter alternative to my problem therefore it is not necessarily very logical. 给定的示例是我的问题的较短替代方案,因此它不一定是很合逻辑的。
You're binding to something that doesn't exist - Title
is a string
in your model. 您将绑定到不存在的内容- Title
是模型中的string
。 You should change this so the deserialization can give you both the title and the attribute: 您应该更改此设置,以便反序列化可以为您提供标题和属性:
public class Item
{
[XmlElement("title")]
public Title Title { get; set; }
[XmlElement("link")]
public string Link { get; set; }
}
public class Title
{
[XmlAttribute("short")]
public string Short { get; set; }
[XmlText]
public string Value { get; set; }
}
Then your current Title
binding changes to Title.Value
and your Title.Short
binding should work. 然后,您当前的Title
绑定将更改为Title.Value
并且Title.Short
绑定应该起作用。
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