How to pass the item data as command parameter in ItemTapped command in .NET MAUI ListView?

In .NET MAUI ListView (SfListView), data items can be passed to the ViewModel using the EventsToCommand behavior to adhere to the MVVM pattern.

This article demonstrates how to pass item data as a command parameter in the ItemTapped command.

C#

 public class ContactsViewModel
 {
     Command<object> tapCommand;
       
     public Command<object> TapCommand
      {
         get { return tapCommand; }
         protected set { tapCommand = value; }
      }
 
     public ContactsViewModel()
      {
         tapCommand = new Command<object>(OnTapped);
      }
 
     public void OnTapped(object obj)
      {
         var name = (obj as Contacts).ContactName ;
         var alert = Application.Current.MainPage.DisplayAlert("Parameter Passed","Name:" + name,"Cancel");
      }
 
 }

Associate the command with the appropriate event of SfListView using behaviors.

Xaml

 
<listView:SfListView x:Name="listView">
        <listView:SfListView.Behaviors>
          <local:EventToCommandBehavior EventName="ItemTapped" 
                                        Command="{Binding TapCommand}"
                                        Converter="{StaticResource EventArgs}" />
        </listView:SfListView.Behaviors>
</listView:SfListView>

Create a CustomConverter to extract ItemData from ItemTappedEventArgs.

C#

public class CustomConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            object eventArgs = null;
            Syncfusion.Maui.ListView.ItemTappedEventArgs eventArg = null;
            if (value is Syncfusion.ListView.XForms.ItemTappedEventArgs)
            {
                eventArg = value as Syncfusion.Maui.ListView.ItemTappedEventArgs;
                eventArgs = eventArg.DataItem;
            }
           
            return eventArgs;
        }
 
        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
 

When a ListViewItem is tapped, the ItemData is returned from CustomConverter to the command in the ViewModel, enabling the desired operation to be performed.

Output

Download the complete sample from GitHub.

Conclusion:

I hope you enjoyed learning how to pass the item data as a command parameter in the ItemTapped command.

You can refer to our .NET MAUI ListView feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started with configuration specifications.

You can check out our components from the License and Downloads page for current customers. 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 below if you have any queries or require clarification. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!