ListBoxEditSettings.FilterCriteria Property

Gets or sets the filter expression. This is a dependency property.

Namespace: DevExpress.Xpf.Editors.Settings

Assembly: DevExpress.Xpf.Core.v23.2.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

C#

public CriteriaOperator FilterCriteria { get; set; }

VB.NET

Public Property FilterCriteria As CriteriaOperator

Property Value

Type	Description
CriteriaOperator	A CriteriaOperator descendant that represents the filter expression.

Remarks

To learn more on how to create filter expressions, see Criteria Language Syntax and Creating Criteria.

Example

This example shows how to use the SearchControl to locate required items displayed within a list box. To execute a search, enter a text within the Find box, and the list box linked to the Search Control will display those records that have matching values.

MainWindow.xaml

<Window x:Class="ListBoxFilteringUsingSearchPanel.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:dxe="http://schemas.devexpress.com/winfx/2008/xaml/editors"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:sys="clr-namespace:System;assembly=mscorlib"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <dxe:SearchControl x:Name="searchControl" Grid.Row="0" Margin="10"
                           HorizontalAlignment="Stretch" VerticalAlignment="Center"
                           FilterCondition="Contains"
                           FilterByColumnsMode="Custom">
            <dxe:SearchControl.ColumnProvider>
                <dxe:SelectorEditColumnProvider>
                    <dxe:SelectorEditColumnProvider.CustomColumns>
                        <sys:String>Name</sys:String>
                    </dxe:SelectorEditColumnProvider.CustomColumns>
                </dxe:SelectorEditColumnProvider>
            </dxe:SearchControl.ColumnProvider>
        </dxe:SearchControl>

        <dxe:ListBoxEdit Name="listBox" Grid.Row="1"  Margin="10"
                         HorizontalAlignment="Stretch" VerticalAlignment="Stretch"
                         DisplayMember="Name" ValueMember="ID"
                         FilterCriteria="{Binding FilterCriteria, ElementName=searchControl}">

        </dxe:ListBoxEdit>
    </Grid>
</Window>

MainWindow.xaml.cs

using System.Windows;

namespace ListBoxFilteringUsingSearchPanel {
    public partial class MainWindow : Window {
        public MainWindow() {
            InitializeComponent();
            listBox.ItemsSource = Staff.GetStaff();
        }
    }
}

MainWindow.xaml.vb

Imports System.Windows

Namespace ListBoxFilteringUsingSearchPanel

    Public Partial Class MainWindow
        Inherits Window

        Public Sub New()
            Me.InitializeComponent()
            Me.listBox.ItemsSource = GetStaff()
        End Sub
    End Class
End Namespace