Silverlight:DataGrid像在ItemsControl中分组一样 [英] Silverlight: Datagrid like grouping in ItemsControl

问题描述

是否可以在Silverlight中对ItemsControl或Listbox中的项目进行分组?这些控件绑定到DomainDataSource.

Is it possible to group items in a ItemsControl or Listbox in Silverlight? These controls are bound to a DomainDataSource.

还是有任何第三方控制可以做到这一点?

Or are there any 3rd party controls that do this?

更新:

这是我要创建的UI.

推荐答案

您可以通过使用绑定到ItemsControls /system.windows.data.pagedcollectionview(v=vs.95).aspx"rel =" noreferrer> PagedCollectionView .

You can do this by using nested ItemsControls bound to a PagedCollectionView.

说我有一个数据源-MyItems-带有字段:Category，Section和Option.我可以从IEnumerable(of MyItems)创建一个PagedCollectionView，并告诉它要分组的字段.

Say I have a datasource - MyItems - with fields: Category, Section and Option. I can create a PagedCollectionView from an IEnumerable(of MyItems) and tell it which fields to group by.

Dim original As IEnumerable(Of MyItems) = GetMyItems()

Dim pcv = New PagedCollectionView(original)

pcv.GroupDescriptions.Add(New PropertyGroupDescription("Category"))
pcv.GroupDescriptions.Add(New PropertyGroupDescription("Section"))

然后将我的第一个ItemsControl绑定到PagedCollectionView

Then I bind my first ItemsControl to the PagedCollectionView

hisMyItems.ItemsSource = pcv.Groups

PCV创建一个嵌套的层次结构，例如:

The PCV creates a nested hierachy like:

-Name
    -Items

其中，Name是分组字段中的值，而Items包含该分组中的行/对象.我想如果您愿意的话，您也可以用xaml创建PCV.

where Name is the value in the grouped field and Items contains the rows/objects in that grouping. I guess you could also create the PCV in xaml if you prefer.

xaml类似于:

<controls:HeaderedItemsControl x:Name="hisMyItems" Header="{Binding Name}" ItemsSource="{Binding Items}" >
    <controls:HeaderedItemsControl.ItemTemplate>
        <DataTemplate>

            <controls:HeaderedItemsControl Header="{Binding Name}" ItemsSource="{Binding Items}" ItemsPanel="{StaticResource ItemsPanelTemplate1}" >
                <controls:HeaderedItemsControl.ItemTemplate>
                    <DataTemplate>
                        <Button Content="{Binding Option}" />
                    </DataTemplate>
                </controls:HeaderedItemsControl.ItemTemplate>
            </controls:HeaderedItemsControl>

        </DataTemplate>
    </controls:HeaderedItemsControl.ItemTemplate>
</controls:HeaderedItemsControl>

我希望这是有道理的.我试图简化实际应用程序中的内容，但是在复制过程中可能会犯一些错误.显然，您也可以使用常规的ItemsControl或其他控件，并使用模板等进行自定义.

I hope that makes sense. I have tried to simplify things from my actual app but I could have made some mistakes in copying it over. Obviously you could use normal ItemsControls or other controls too and customize with templates etc.

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