Articles in this section
Category / Section

How to change selected image in .NET MAUI SfListView?

5 mins read

You can change the selected item image in the .NET MAUI ListView (SfListView) using Converters.

XAML

Bind the IsSelected property and converter to the Label's Text.

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="ListViewMaui.MainPage"
             xmlns:local="clr-namespace:ListViewMaui"
             xmlns:syncfusion="clr- namespace:Syncfusion.Maui.ListView;assembly=Syncfusion.Maui.ListView"
             BackgroundColor="{DynamicResource SecondaryColor}">
 
    <ContentPage.Resources>
        <ResourceDictionary>
            <local:IconColorConverter x:Key="IconColorConverter"/>
            <local:SelectionIconConverter x:Key="SelectionIconConverter"/>
            <DataTemplate x:Name="ItemTemplate" x:Key="ItemTemplate" >
                …                
                 <Label Grid.Row="0" Grid.Column="2" Padding='{OnPlatform UWP="0,10,0,0"}'
                               WidthRequest="40" HeightRequest="40" HorizontalOptions="Start" 
                               HorizontalTextAlignment="Start" VerticalOptions="Center" VerticalTextAlignment="Center"
                               FontSize="{OnPlatform Android=Large, UWP=Medium, WPF=Medium, iOS=Large, MacCatalyst=Large}"
                               Text="{Binding IsSelected, Converter={StaticResource SelectionIconConverter}}"
                               TextColor="{Binding Path=IsSelected, Converter={StaticResource IconColorConverter}}"
                               FontFamily="{OnPlatform iOS=Sync FontIcons, MacCatalyst=Sync FontIcons, Android=Sync FontIcons.ttf#, UWP=Sync FontIcons.ttf#Sync FontIcons}"/>              
               …
            </DataTemplate>
        </ResourceDictionary>
    </ContentPage.Resources>    
                       
    <syncfusion:SfListView x:Name="listView"
          Grid.Row="1"
          AutoFitMode="None"
          SelectionGesture="Tap"
          SelectionMode="Multiple"
          SelectedItems="{Binding SelectedItems}"
          SelectionBackground ="#E4E4E4"
          ItemTemplate="{StaticResource ItemTemplate}"
          ItemSize="65" ItemSpacing="0,0,0,1"
          IsStickyHeader="True" ItemsSource="{Binding MusicInfo}">
     </syncfusion:SfListView>
</ContentPage>

C#

Define the IsSelected property in the Model with INotifyPropertyChanged.

public class Musiqnfo : INotifyPropertyChanged
{               
     private bool isSelected;
 
     public bool IsSelected
     {
         get { return isSelected; }
         set
         {
             isSelected = value;
             RaisePropertyChanged("IsSelected");
         }
     }
 
     public event PropertyChangedEventHandler PropertyChanged;
 
     private void RaisePropertyChanged(String name)
     {
         if (PropertyChanged != null)
             this.PropertyChanged(this, new PropertyChangedEventArgs(name));
     }
 }
 

Update the IsSelected value in ListView_SelectionChanged method.

public class SfListViewSelectionBehavior : Behavior<ContentPage>
{
     ListView.SelectionChanged += ListView_SelectionChanged;
 
     ListView.SelectionChanged -= ListView_SelectionChanged;
            
      private void ListView_SelectionChanged(object sender, ItemSelectionChangedEventArgs e)
      {
          if (ListView.SelectionMode == Syncfusion.Maui.ListView.SelectionMode.Multiple)
          {
              SelectionViewModel.HeaderInfo = ListView.SelectedItems.Count + " item(s) selected";
              for (int i = 0; i < e.AddedItems.Count; i++)
              {
                  var item = e.AddedItems[i];
                  (item as Musiqnfo).IsSelected = true;
               }
               for (int i = 0; i < e.RemovedItems.Count; i++)
               {
                  var item = e.RemovedItems[i];
                  (item as Musiqnfo).IsSelected = false;
               }
           }
      }
}

Setting Image based on the IsSelected value in Converter.

public class IconColorConverter : IValueConverter
{
     public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
     {
          if ((bool)value)
             return Color.FromArgb("#1a75ff");
         else
              return Color.FromArgb("#b3b3b3");
      }
 
      public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
      {
          throw new NotImplementedException();
      }
  }
    public class SelectionIconConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if ((bool)value)
                return "\ue748";
            else
                return "\ue718";
        }
 
      public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
      {
          throw new NotImplementedException();
      }
 }

Output

Apply selected image in .NET MAUI selected image.


Download the complete sample on GitHub.

Conclusion

I hope you enjoyed learning how to change the selected image in .NET MAUI ListView.

You can refer to our .NET MAUI ListView feature tour page to learn about its other groundbreaking feature representations and documentation, and how to quickly get started with configuration specifications. Explore our .NET MAUI ListView example to understand how to create and manipulate data.

For current customers, check out our components from the License and Downloads page. If you are new to Syncfusion®, try our 30-day free trial to check out our other controls.

Please let us know in the comments section if you have any queries or require clarification. Contact us through our support forumsDirect-Trac, or feedback portal. We are always happy to assist you!

Did you find this information helpful?
Yes
No
Help us improve this page
Please provide feedback or comments
Comments (0)
Please  to leave a comment
Access denied
Access denied