Header and Footer support in .NET MAUI Autocomplete (SfAutocomplete)

We can provide Header and Footer view in the dropdown in SfAutocomplete by enabling ShowDropdownHeaderView and ShowDropdownFooterView.

Header Content

We can provide Header Content at the top of the Autocomplete’s dropdown.DropDownHeaderView property is used to set the content of the header. The height of the Header in the SfAutocomplete can be adjusted by the property DropdownHeaderViewHeight.

XAML

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:autocomplete="clr-namespace:Syncfusion.Maui.Inputs;assembly=Syncfusion.Maui.Inputs"
             xmlns:local="clr-namespace:AutocompleteSample"             
             x:Class="AutocompleteSample.MainPage">

    <ContentPage.BindingContext>
        <local:SocialMediaViewModel />
    </ContentPage.BindingContext>

    <StackLayout VerticalOptions="Start" 
                 HorizontalOptions="Start" 
                 Padding="30">
        <autocomplete:SfAutocomplete HeightRequest="40"
                                     ShowDropdownHeaderView ="True"
                                     ItemsSource="{Binding SocialMedias}"
                                     DisplayMemberPath="Name"
                                     DropdownHeaderViewHeight="50">
            <autocomplete:SfAutocomplete.DropDownHeaderView>
                <StackLayout BackgroundColor="#f0f0f0" >
                    <Label  x:Name="SearchLabel" 
                            FontSize="20" 
                            VerticalTextAlignment="Center" 
                            HorizontalOptions="Center" 
                            VerticalOptions="Center" 
                            TextColor="#006bcd"   />
                </StackLayout>
            </autocomplete:SfAutocomplete.DropDownHeaderView>
        </autocomplete:SfAutocomplete>
    </StackLayout>
</ContentPage>

C#

using Syncfusion.Maui.Inputs;
using System.Collections.Generic;

namespace AutocompleteSample
{
    public partial class MainPage : ContentPage
    {
        Label SearchLabel;
        public MainPage()
        {
            InitializeComponent();
            StackLayout stackLayout = new StackLayout
            {
                VerticalOptions = LayoutOptions.Start,
                HorizontalOptions = LayoutOptions.Start,
                Padding = new Thickness(30)
            };

            SfAutocomplete autoComplete = new SfAutocomplete
            {
                HeightRequest = 40,
                ShowDropdownHeaderView = true,
                ItemsSource = new List<string> { "Facebook", "Twitter", "Instagram", "LinkedIn" },
                DropdownHeaderViewHeight = 50
            };

            StackLayout dropDownHeaderView = new StackLayout
            {
                BackgroundColor = Color.FromHex("#f0f0f0")
            };

            Label searchLabel = new Label
            {
                FontSize = 20,
                VerticalTextAlignment = TextAlignment.Center,
                HorizontalOptions = LayoutOptions.Center,
                VerticalOptions = LayoutOptions.Center,
                TextColor = Color.FromHex("#006bcd")
            };
            dropDownHeaderView.Children.Add(searchLabel);
            autoComplete.DropDownHeaderView = dropDownHeaderView;
            stackLayout.Children.Add(autoComplete);
            Content = stackLayout;
        }
    }
}

Footer Content

We can provide Footer Content at the bottom of the Autocomplete’s dropdown. DropDownFooterView property is used to set the content of the footer.The height of the Footer in the SfAutocomplete can be adjusted by the property DropdownFooterViewHeight.

The following code example illustrate how to set Footer content in SfAutocomplete.

XAML

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:autocomplete="clr-namespace:Syncfusion.Maui.Inputs;assembly=Syncfusion.Maui.Inputs"
             xmlns:local="clr-namespace:AutocompleteSample"             
             x:Class="AutocompleteSample.MainPage">

    <ContentPage.BindingContext>
        <local:SocialMediaViewModel />
    </ContentPage.BindingContext>

    <StackLayout VerticalOptions="Start" 
                 HorizontalOptions="Start" 
                 Padding="30">
        <autocomplete:SfAutocomplete HeightRequest="40"
                                     ShowDropdownFooterView ="True"
                                     ItemsSource = "{Binding SocialMedias}"
                                     DisplayMemberPath="Name"
                                     DropdownFooterViewHeight="50">
            <autocomplete:SfAutocomplete.DropDownFooterView>
                <StackLayout BackgroundColor="#f0f0f0" >
                    <Label  Text="Add New"
                            FontSize="20" 
                            VerticalTextAlignment="Center" 
                            HorizontalOptions="Center" 
                            VerticalOptions="Center" 
                            TextColor="#006bcd" />
                </StackLayout>
            </autocomplete:SfAutocomplete.DropDownFooterView>
        </autocomplete:SfAutocomplete>
    </StackLayout>
</ContentPage>

C#

using Syncfusion.Maui.Inputs;
using System.Collections.Generic;

namespace AutocompleteSample
{
    public partial class MainPage : ContentPage
    {
        public MainPage()
        {
            InitializeComponent();
            StackLayout stackLayout = new StackLayout()
            {
                VerticalOptions = LayoutOptions.Start,
                HorizontalOptions = LayoutOptions.Start,
                Padding = new Thickness(30)
            };

            SfAutocomplete autoComplete = new SfAutocomplete()
            {
                HeightRequest = 40,
                ShowDropdownFooterView = true,
                ItemsSource = new List<string> { "Facebook", "Twitter", "Instagram", "LinkedIn" },
                DropdownFooterViewHeight = 50,
            };

            StackLayout layout = new StackLayout()
            {
                BackgroundColor = Color.FromHex("#f0f0f0")
            };

            Label SearchLabel = new Label()
            {
                FontSize = 20,
                Text = "Add New",
                VerticalTextAlignment = TextAlignment.Center,
                HorizontalOptions = LayoutOptions.Center,
                VerticalOptions = LayoutOptions.Center,
                TextColor = Color.FromHex("#006bcd")
            };

            layout.Children.Add(SearchLabel);
            autoComplete.DropDownFooterView = layout;
            stackLayout.Children.Add(autoComplete);
            this.Content = stackLayout;
        }
    }
}