質問編集履歴
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質問追記
test
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@@ -51,3 +51,87 @@
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解決策をご存知の方、よろしくお願いいたします。
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**追記:**
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立て続けに質問、申し訳ございません。
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たとえば、下記のようなViewModelにIndexを振りたい場合はどのようにすればよろしいでしょうか。
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```C#
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public class MyItem: BindableBase
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{
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public int Index { set; get; }
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public string ItemName { set; get; }
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:
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}
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private ObservableCollection<MyItem> MyItemCollection { set; get; } = new ObservableCollection<MyItem>()
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{
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new MyItem{ ItemName="item1" },
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new MyItem{ ItemName="item2" },
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new MyItem{ ItemName="item3" },
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new MyItem{ ItemName="item4" },
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new MyItem{ ItemName="item5" }
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};
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```
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```XAML
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<ListBox.ItemTemplate>
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<DataTemplate>
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<StackPanel Orientation="Horizontal">
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<TextBlock Text="{Binding Index/>
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<TextBlock Text=" : " />
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<TextBlock Text="{Binding ItemName}" />
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</StackPanel>
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</DataTemplate>
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</ListBox.ItemTemplate>
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```
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下記のように記述してみたところ、
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``<TextBlock Text="{Binding Path=Index, RelativeSource={RelativeSource AncestorType=ListBoxItem}, Converter={StaticResource ItemContainerToIndexConverter}}"/>``
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このようなエラーが出力されます。
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``System.Windows.Data Error: 40 : BindingExpression path error: 'Index' property not found on 'object' ''ListBoxItem' (Name='')'. BindingExpression:Path=Index; DataItem='ListBoxItem' (Name=''); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')``
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