对 WPF DataGrid 进行排序，MVVM 风格

发布于 2024-08-14 12:32:54 字数 1266 浏览 2 评论 0原文

我正在尝试使用 WPF 工具包 DataGrid 进行排序。我的 DataGrid 的行是视图模型的实例。行的视图模型公开每列的视图模型。每列都是针对不同用户控件的数据模板。这就是我的 DataGrid 的列声明的样子：

<tk:DataGrid.Columns>
    <tk:DataGridTemplateColumn Header="Name" MinWidth="150" Width="150">
        <tk:DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <ContentPresenter Content="{Binding Path=NameViewModel}"/>
            </DataTemplate>
        </tk:DataGridTemplateColumn.CellTemplate>
    </tk:DataGridTemplateColumn>
    <tk:DataGridTemplateColumn Header="Data Dependencies" MinWidth="350" Width="Auto">
        <tk:DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <ContentPresenter Content="{Binding Path=DependenciesViewModel}"/>
            </DataTemplate>
        </tk:DataGridTemplateColumn.CellTemplate>
    </tk:DataGridTemplateColumn>
</tk:DataGrid.Columns>

Name 绑定到视图模型，该视图模型是使用将名称显示为文本块的用户控件进行模板化的数据。它还显示一些其他图形信息，这就是它显示在用户控件中的原因。

这样做的问题是我失去了对 Name 列进行排序的能力。我希望在公开名称视图模型的行视图模型上实现 IComparable 能够解决问题，但 WPF 数据网格看起来并不关心它实现 IComparable。

有人对如何最好地解决这个问题有任何建议吗？

原文

I'm trying to get sorting to work with a WPF Toolkit DataGrid. My DataGrid's rows are instances of view models. The row's view model exposes a view model for each column. Each column is data templated to a different user control. This is what my DataGrid's column declarations look like:

<tk:DataGrid.Columns>
    <tk:DataGridTemplateColumn Header="Name" MinWidth="150" Width="150">
        <tk:DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <ContentPresenter Content="{Binding Path=NameViewModel}"/>
            </DataTemplate>
        </tk:DataGridTemplateColumn.CellTemplate>
    </tk:DataGridTemplateColumn>
    <tk:DataGridTemplateColumn Header="Data Dependencies" MinWidth="350" Width="Auto">
        <tk:DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <ContentPresenter Content="{Binding Path=DependenciesViewModel}"/>
            </DataTemplate>
        </tk:DataGridTemplateColumn.CellTemplate>
    </tk:DataGridTemplateColumn>
</tk:DataGrid.Columns>

Name is bound to a view model that is data templated with a user control that displays the name as a text block. It also displays some other graphical information, which is why it's displayed in a user control.

The problem with doing it this way is that I lose the ability to sort the Name column. I was hoping that implementing IComparable<T> on the row view model that exposes the Name view model would do the trick, but it doesn't look like the WPF data grid cares that it implements IComparable<T>.

Does anyone have any suggestions as to how best to tackle this?

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