ComboBoxEdit.FilterMode Property

Specifies the comparison operator used to search for the drop-down list items by the entered fragment.

Namespace: DevExpress.XamarinForms.Editors

Assembly: DevExpress.XamarinForms.Editors.dll

NuGet Package: DevExpress.XamarinForms.Editors

Declaration

public FilterMode FilterMode { get; set; }

Property Value

Type	Description
FilterMode	A value that specifies the filtering mode: StartsWith, EndsWith, Contains.

Available values:

Name	Description
StartsWith	Data items should start with the entered text.
EndsWith	Data items should end with the entered text.
Contains	Data items should contain the entered text.

Example

The following example shows how to customize combo box appearance and set up item filtering.

State	Appearance
Unfocused
Focused
Filtered

XAML

<dxe:ComboBoxEdit ItemsSource="{Binding}"

                  LabelText="Employee"
                  IsLabelFloating="True"
                  HelpText="Select an e-mail"
                  BorderColor="Black"
                  FocusedBorderColor="DarkOrange"
                  BackgroundColor="Beige"
                  LabelColor="Black"
                  FocusedLabelColor="DarkOrange"
                  CornerRadius="10"
                  CornerMode="Cut"
                  DropDownBackgroundColor="Beige"
                  DropDownSelectedItemBackgroundColor="Brown"
                  DropDownSelectedItemTextColor="White"

                  IsFilterEnabled="True"
                  FilterMode="StartsWith"
                  FilterComparisonType="CurrentCultureIgnoreCase">

  <dxe:ComboBoxEdit.ItemTemplate>
    <DataTemplate>
      <Grid>
        <Label Margin="10,15,0,15" Text="{Binding Name}" FontAttributes="Bold"/>
        <Label Margin="0,15,0,15" Grid.Column="1" Text="{Binding Age}"/>
        <Label Margin="0,15,10,15" Grid.Column="2" Text="{Binding Location}" HorizontalTextAlignment="End"/>
      </Grid>
    </DataTemplate>
  </dxe:ComboBoxEdit.ItemTemplate>
</dxe:ComboBoxEdit>

C#

using System.Collections.Generic;
using System.ComponentModel;
using Xamarin.Forms;

namespace ComboBoxExample {
    public partial class MainPage : ContentPage {
        public MainPage() {
            InitializeComponent();
            this.BindingContext = new List<Person>() {
                new Person {Name = "Jane", Age = 43, Location = "Atlanta"},
                new Person {Name = "Margaret", Age = 25, Location = "Memphis"},
                new Person {Name = "Debbie", Age = 28, Location = "New-York"},
                new Person {Name = "John", Age = 19, Location = "Detroit"},
                new Person {Name = "Derek", Age = 36, Location = "Houston"}
            };
        }
    }

    public class Person {
        public string Name { get; set; }
        public int Age { get; set; }
        public string Location { get; set; }
    }
}