Programmatic filtering issue

[Sergey]

I have set column filter programmaticaly. It does filters the view.
When I click the funnel icon - the default filtering control does not reflect filtering condition.

using System.Collections.Generic;
using System.Windows;
using Telerik.Windows.Data;

namespace TestGridViewFilter
{
    public partial class MainPage
    {
        public MainPage()
        {
            Documents.Add(new Document { Title = "T1", State = State.Returned });
            Documents.Add(new Document { Title = "T2", State = State.Draft });
            Documents.Add(new Document { Title = "T3", State = State.Final });
            Documents.Add(new Document { Title = "T4", State = State.InReview });
            Documents.Add(new Document { Title = "T5", State = State.New });
            Documents.Add(new Document { Title = "T6", State = State.Submitted });
            Documents.Add(new Document { Title = "T7", State = State.Withdrawn });

            InitializeComponent();
        }

        private void SetFilters()
        {
            TestGridView.FilterDescriptors.SuspendNotifications();

            TestGridView.FilterDescriptors.Clear();

            var statusFilterDescriptor = new CompositeFilterDescriptor();
            statusFilterDescriptor.FilterDescriptors.Add(
                new FilterDescriptor("State", FilterOperator.IsEqualTo, State.Final));

            statusFilterDescriptor.FilterDescriptors.Add(
                new FilterDescriptor("State", FilterOperator.IsEqualTo, State.Withdrawn));

            statusFilterDescriptor.LogicalOperator = FilterCompositionLogicalOperator.Or;

            TestGridView.FilterDescriptors.Add(statusFilterDescriptor);
            TestGridView.FilterDescriptors.ResumeNotifications();
        }

        private List<Document> _documents;
        public List<Document> Documents
        {
            get { return _documents ?? (_documents = new List<Document>()); }
        }

        private void TestGridViewDistinctValuesLoading(object sender, Telerik.Windows.Controls.GridView.GridViewDistinctValuesLoadingEventArgs e)
        {
            e.ItemsSource = TestGridView.GetDistinctValues(e.Column, false);
        }

        private void UserControlLoaded(object sender, RoutedEventArgs e)
        {
            SetFilters();
        }
    }

    public class Document
    {
        public State State { get; set; }
        public string Title { get; set; }
    }

    public enum State
    {
        New,
        Draft,
        Withdrawn,
        Submitted,
        InReview,
        Final,
        Returned
    }
}

<UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d"
             x:Class="TestGridViewFilter.MainPage"
             MinWidth="640"
             MinHeight="480"
             x:Name="UserControl"
             Loaded="UserControlLoaded">

    <Grid x:Name="LayoutRoot"
          Background="White">
        <telerik:RadGridView x:Name="TestGridView"
                             VerticalAlignment="Center"
                             HorizontalAlignment="Center"
                             ItemsSource="{Binding Documents, ElementName=UserControl}"
                             AutoGenerateColumns="False"
                             IsReadOnly="True"
                             ShowGroupPanel="False"
                             RowIndicatorVisibility="Collapsed"
                             CanUserFreezeColumns="False"
                             DistinctValuesLoading="TestGridViewDistinctValuesLoading">
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn Header="Title"
                                            DataMemberBinding="{Binding Title}" />

                <telerik:GridViewDataColumn Header="State"
                                            DataMemberBinding="{Binding State}" />
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>
    </Grid>
</UserControl>

[Dimitrina]

Hi,

I would suggest you to use IColumnFilterDescriptor (instead of FilterDescriptor) as demonstrated on this online demo. You can also check our online documentation.

Greetings,
Didie
the Telerik team