RadGridView的组合框列中的筛选和排序

Question

RadGridView is binded to some collection where some properties represent some key values. I've added combobox columns which are binded to these properties and added itemssource which contains key-displayValue pairs.

The question is how to setup sorting and filtering by display value?

Answer 1

You can filter or sort with a CollectionViewSource . CollectionViewSource is a data binding infrastructure to provide the features like filtering and Sorting.

How to initialize CollectionView :

ICollectionView _collectionView = CollectionViewSource.GetDefaultView(<<ItemsSource bind to comboBox>>);

Filtering

To filter a collection view you can define a callback method that determines if the item should be part of the view or not. That method should have the following signature: bool Filter(object item) . Now set the delegate of that method to the Filter property of the CollectionView and you're done

Sorting

Sorting data ascending or descending by one or multiple criteria is a common requirement for viewing data. The collection view makes it so easy to achieve this goal. Just add as many SortDescriptions as you like to the CollectionView