ColumnHeader sorting with a CollectionViewSource
本文关键字:CollectionViewSource with sorting ColumnHeader | 更新日期: 2023-09-27 17:56:41
我有一个数据绑定到集合视图源的数据网格。如果我将数据网格绑定到列表
如果绑定到 CollectionViewSource,则列标题仍显示为 DataGrid 将排序的指示,但它不会排序。如何实现相同的功能?
这是我的数据网格:
<DataGrid Grid.Row="1" SelectedItem="{Binding SelectedItem}"
SelectionMode="Single" SelectionUnit="FullRow" AutoGenerateColumns="False" ItemsSource="{Binding CurrentErrorsViewSource.View}"
CanUserSortColumns="True" CanUserAddRows="False" CanUserDeleteRows="False" CanUserReorderColumns="False" IsReadOnly="True">
<DataGrid.Columns>
<DataGridTemplateColumn CanUserResize="False">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<ContentControl Template="{StaticResource ErrorRemoteControl}" Foreground="{StaticResource GlyphBrush}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
<DataGridTextColumn Header="{userInterface:Translation Description}" Binding="{Binding Path=(viewModels:ErrorItemViewModel.ErrorInformation).Description}" Width="Auto" />
<DataGridTextColumn Header="{userInterface:Translation Code}" Binding="{Binding Path=(viewModels:ErrorItemViewModel.ErrorCode)}" Width="Auto" />
</DataGrid.Columns>
</DataGrid>
您可以处理 DataGrid 的 Sorting
事件,并在代码隐藏中创建适当的 SortDescription 对象,并将它们添加到 CollectionViewSource 的 SortDescriptions 集合中。
void SortHandler(object sender, DataGridSortingEventArgs e)
{
var collectionViewSource = (sender as DataGrid).ItemsSource as CollectionViewSource;
var propertyName = e.Column.SortMemberPath;
var sortDirection = ListSortDirection.Ascending;
foreach (var sortDescription in collectionViewSource.SortDescriptions)
if (sortDescription.PropertyName == propertyName &&
sortDescription.Direction == ListSortDirection.Ascending)
{
sortDirection = ListSortDirection.Descending;
break;
}
var sortDescription = new SortDescription()
{
PropertyName = propertyName,
Direction = sortDirection
};
collectionViewSource.SortDescriptions.Clear();
collectionViewSource.SortDescriptions.Add(sortDescription);
}