README.md

Paging in Xamarin.Forms Listview

The SfListView allows displaying paging using the SfDataPager control. It can be performed through loading data dynamically into ItemsSource of the SfListView using OnDemandLoading event for the current page by setting the SfDataPager.UseOnDemandPaging to True. By using the SfDataPager.PageSize property, you can define the number of list items to be displayed in each page.

<ContentPage xmlns:syncfusion="clr-namespace:Syncfusion.ListView.XForms;assembly=Syncfusion.SfListView.XForms"
             xmlns:sfPager="clr-namespace:Syncfusion.SfDataGrid.XForms.DataPager;assembly=Syncfusion.SfDataGrid.XForms">

    <ContentPage.Behaviors>
        <local:SfListViewPagingBehavior/>
    </ContentPage.Behaviors>

    <ContentPage.Resources>
        <ResourceDictionary>
            <local:CurrencyFormatConverter x:Key="currencyFormatConverter"/>
        </ResourceDictionary>
    </ContentPage.Resources>

    <ContentPage.Content>
        <StackLayout>

            <syncfusion:SfListView x:Name="listView" >
                <syncfusion:SfListView.LayoutManager>
                    <syncfusion:GridLayout SpanCount = "2">
                </syncfusion:SfListView.LayoutManager>
                <syncfusion:SfListView.ItemTemplate>
                    <DataTemplate>
                        <Grid>
                            <Image Source="{Binding Image}" />    
                            <Label Text="{Binding Name}" />
                            <Label Text="{Binding Weight}" />
                        </Grid>
                    </DataTemplate>
                </syncfusion:SfListView.ItemTemplate>
            </syncfusion:SfListView>

            <sfPager:SfDataPager x:Name="dataPager" UseOnDemandPaging="True" DisplayMode = "PreviousNextNumeric" NumericButtonCount = "4" PageSize = "6">

        </StackLayout>
    </ContentPage.Content>
</ContentPage>

public class SfListViewPagingBehavior : Behavior<ContentPage>
{

    private Syncfusion.ListView.XForms.SfListView listView;
    private PagingViewModel PagingViewModel;
    private SfDataPager dataPager;

    protected override void OnAttachedTo(ContentPage bindable)
    {
        listView = bindable.FindByName<Syncfusion.ListView.XForms.SfListView>("listView");
        dataPager = bindable.FindByName<SfDataPager>("dataPager");
        PagingViewModel = new PagingViewModel();
        listView.BindingContext = PagingViewModel;
        dataPager.Source = PagingViewModel.pagingProducts;
        dataPager.OnDemandLoading += DataPager_OnDemandLoading;
        base.OnAttachedTo(bindable);
    }

    private void DataPager_OnDemandLoading(object sender, OnDemandLoadingEventArgs e)
    {
        var source = PagingViewModel.pagingProducts.Skip(e.StartIndex).Take(e.PageSize);
        listView.ItemsSource = source.AsEnumerable();
    }

    protected override void OnDetachingFrom(ContentPage bindable)
    {
        listView = null;
        PagingViewModel = null;
        dataPager = null;
        base.OnDetachingFrom(bindable);
    }
}

To know more about MVVM in ListView, please refer our documentation here