AccordionControl.IsSynchronizedWithCurrentItem Property

Gets or sets whether a AccordionControl should keep the AccordionControl.SelectedItem synchronized with the current item in the ListBoxEdit.ItemsSource property. This is a dependency property.

Namespace: DevExpress.Xpf.Accordion

Assembly: DevExpress.Xpf.Accordion.v24.1.dll

NuGet Package: DevExpress.Wpf.Accordion

Declaration

C#

public bool IsSynchronizedWithCurrentItem { get; set; }

VB.NET

Public Property IsSynchronizedWithCurrentItem As Boolean

Property Value

Type	Description
Boolean	true, to always synchronize the AccordionControl.SelectedItem with the current item in the ICollectionView assigned to the ItemsSource property; otherwise, false.

Remarks

Set the IsSynchronizedWithCurrentItem property to true, to ensure that the AccordionControl.SelectedItem always corresponds to the CurrentItem property in the ICollectionView.

Example

This example demonstrates how to bind the AccordionControl to a collection view and synchronize the selected item with the collection view.

View:

Xaml

<Window x:Class="CollectionViewSample.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:dx="http://schemas.devexpress.com/winfx/2008/xaml/core"
        xmlns:dxe="http://schemas.devexpress.com/winfx/2008/xaml/editors"
        xmlns:dxa="http://schemas.devexpress.com/winfx/2008/xaml/accordion"        
        xmlns:dxmvvm="http://schemas.devexpress.com/winfx/2008/xaml/mvvm"
        xmlns:componentModel="clr-namespace:System.ComponentModel;assembly=WindowsBase"
        dx:ThemeManager.Theme="Office2019Colorful"
        xmlns:local="clr-namespace:CollectionViewSample"
        DataContext="{dxmvvm:ViewModelSource local:ViewModel}"
        Title="Products" Height="450" Width="500">
    <Window.Resources>
        <CollectionViewSource Source="{Binding Products}" x:Key="Products" >
            <CollectionViewSource.SortDescriptions>
                <componentModel:SortDescription PropertyName="ProductName" Direction="Ascending"/>
            </CollectionViewSource.SortDescriptions>
            <CollectionViewSource.GroupDescriptions>
                <PropertyGroupDescription PropertyName="Category"/>
            </CollectionViewSource.GroupDescriptions>
        </CollectionViewSource>
    </Window.Resources>
    <Grid Margin="5">
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <dxe:ListBoxEdit ItemsSource="{Binding Source={StaticResource Products}}"
                         DisplayMember="ProductName" 
                         AllowCollectionView="True" IsSynchronizedWithCurrentItem="True">
            <dxe:ListBoxEdit.GroupStyle>
                <x:Static Member="GroupStyle.Default"/>
            </dxe:ListBoxEdit.GroupStyle>
        </dxe:ListBoxEdit>

        <dxa:AccordionControl Grid.Column="1" ItemsSource="{Binding Source={StaticResource Products}}" 
                              AutoExpandAllItems="True" ChildrenPath="Items"
                              AllowCollectionView="True" IsSynchronizedWithCurrentItem="True" ShowSearchControl="True">
            <dxa:AccordionControl.ItemContainerStyle>
                <Style TargetType="dxa:AccordionItem">
                    <Style.Triggers>
                        <Trigger Property="ItemLevel" Value="1">
                            <Setter Property="Header" Value="{Binding ProductName}"/>
                        </Trigger>
                    </Style.Triggers>
                </Style>
            </dxa:AccordionControl.ItemContainerStyle>
        </dxa:AccordionControl>
    </Grid>
</Window> 

View Model:

C#

using System.Collections.Generic;
using System.Collections.ObjectModel;

namespace CollectionViewSample {
    public class ViewModel {
        public virtual ReadOnlyCollection<Product> Products { get; set; }

        public ViewModel() {
            Products = new ReadOnlyCollection<Product>(CreateProducts());
        }
        List<Product> CreateProducts() {
            var result = new List<Product> {
                new Product("Queso Manchego La Pastora", "Cheeses"),
                new Product("Gorgonzola Telino", "Cheeses"),
                new Product("Chai", "Beverages"),
                new Product("Outback Lager", "Beverages"),
                new Product("Mozzarella di Giovannia", "Cheeses"),
                new Product("Geitost", "Cheeses"),
                new Product("Chartreuse verte", "Beverages"),
                new Product("Ipoh Coffee", "Beverages")
            };
            return result;
        }
    }
    public class Product {
        public Product(string productName, string category) {
            ProductName = productName;
            Category = category;
        }
        public string ProductName { get; set; }
        public string Category { get; set; }

        public override string ToString() {
            return ProductName;
        }
    }
}

VB.NET

Imports System.Collections.Generic
Imports System.Collections.ObjectModel

Namespace CollectionViewSample
    Public Class ViewModel
        Public Overridable Property Products As ReadOnlyCollection(Of Product)

        Public Sub New()
            Products = New ReadOnlyCollection(Of Product)(CreateProducts())
        End Sub

        Private Function CreateProducts() As List(Of Product)
            Dim result = New List(Of Product) From {
                New Product("Queso Manchego La Pastora", "Cheeses"),
                New Product("Gorgonzola Telino", "Cheeses"),
                New Product("Chai", "Beverages"),
                New Product("Outback Lager", "Beverages"),
                New Product("Mozzarella di Giovannia", "Cheeses"),
                New Product("Geitost", "Cheeses"),
                New Product("Chartreuse verte", "Beverages"),
                New Product("Ipoh Coffee", "Beverages")
            }
            Return result
        End Function
    End Class

    Public Class Product
        Public Sub New(ByVal productName As String, ByVal category As String)
            ProductName = productName
            Category = category
        End Sub

        Public Property ProductName As String
        Public Property Category As String

        Public Overrides Function ToString() As String
            Return ProductName
        End Function
    End Class
End Namespace