How to edit the ListView tapped item in Xamarin.Forms (SfListView) using DataForm?
You can edit the tapped ListViewItem by binding the item to DataForm in Xamarin.Forms ListView.
XAML
ListView ItemTemplate defined with Edit button to edit the data.
<ContentPage xmlns:listView="clr-namespace:Syncfusion.ListView.XForms;assembly=Syncfusion.SfListView.XForms">
<ContentPage.Content>
<Grid>
<listView:SfListView x:Name="listView"
ItemsSource="{Binding contactsinfo}" >
<listView:SfListView.ItemTemplate>
<DataTemplate>
<StackLayout >
<Grid>
<Image Source="{Binding ContactImage}" />
<StackLayout Grid.Column="1">
<Label Text="{Binding ContactName}"/>
<Label Text="{Binding ContactNumber}"/>
</StackLayout>
<Grid Grid.Column="2">
<Button x:Name="ZoomIn" Text="Edit" Command="{Binding Path=BindingContext.TapCommand, Source={x:Reference Name=listView}}"
CommandParameter="{Binding .}" />
</Grid>
</Grid>
</StackLayout>
</DataTemplate>
</listView:SfListView.ItemTemplate>
</listView:SfListView>
</Grid>
</ContentPage.Content>
</ContentPage>
XAML
DataForm defined with TappedItem binding from ViewModel.
<Grid>
<dataForm:SfDataForm x:Name="dataForm"
LabelPosition="Top" CommitMode="PropertyChanged"
DataObject="{Binding TappedItem}"/>
<Button Text="Done" Command="{Binding DoneCommand}" Grid.Row="1"/>
</Grid>
C#
On edit, Update the edited item to TappedItem property and navigate to DataForm page
public class ContactsViewModel : INotifyPropertyChanged
{
private Contacts _tappedItem;
public Command<object> TapCommand { get; set; }
public Command<object> DoneCommand { get; set; }
public Contacts TappedItem
{
get => _tappedItem;
set {
_tappedItem = value;
OnPropertyChanged("TappedItem");
}
}
public ContactsViewModel()
{
TapCommand = new Command<object>(ButtonTapped);
DoneCommand = new Command<object>(DoneTapped);
}
private void DoneTapped(object obj)
{
App.Current.MainPage.Navigation.PopAsync();
}
private void ButtonTapped(object obj)
{
TappedItem = obj as Contacts;
var dataForm = new EditPage();
dataForm.BindingContext = this;
App.Current.MainPage.Navigation.PushAsync(dataForm);
}
}
Output
Conclusion
I hope you enjoyed learning about how to edit the ListView tapped item in Xamarin.Forms (SfListView) using DataForm.
You can refer to our Xamarin.Forms ListView feature tour page to know about its other groundbreaking feature representations. You can also explore our Xamarin.Forms ListView documentation to understand how to create and manipulate data.
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