Question

我有一个WPF Combo盒,定义如下:

<ComboBox Grid.Column="1" x:Name="cUrls" SelectedIndex="1"  ItemsSource=" {Binding XPath=//data/endpoints/endpoint}" Margin="5" >                    
    <ComboBox.ItemTemplate>
        <DataTemplate>
           <TextBlock Text="{Binding XPath=@name}"></TextBlock>
        </DataTemplate>
    </ComboBox.ItemTemplate>
</ComboBox>

窗口与XmlDocument一样:

<?xml version="1.0" encoding="utf-8" ?>
    <data>
      <endpoints>
         <endpoint name="test">test url</endpoint>
         <endpoint default="true" name="production">production url</endpoint>
       </endpoints>
     <requests>
        <request >
               ...
        </request>
        <request >
                ...
        </request>
      </requests>
    </data>

The binding works fine and the combo box shows the items "test" and "production" and I am able to pull the right URL out of the SelectedValue property.

我愿把ComboBox的<代码>中选入的Index的财产列入<endpoint> nodefault=true的属性。

I ombo 如果是,这种表述会看上去什么? 如果不是的话,我应该做些什么?

感谢!

Answer 1

提出

      <ComboBox x:Name="cUrls" 
                SelectedItem="{Binding XPath=/data/endpoints/endpoint[@default= true ]}"

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