We have checked the provide sample, we would like let you
that Button inside the GroupHeaderTemplate which have the binding context as
the Group result , where the GroupResult contains Groups , Key , Items and
IsExpand properties , as changes these properties will trigger the converter,
which bound the binding context of the DataTrigger of button.Here you have
achieve you requirement by setting the proper binding context and refreshing
the datasource. we have attached the code snippet and modified sample for your
reference and let us know if you still facing issue.
Code snippet:
Xaml page
|
<syncfusion:SfListView.GroupHeaderTemplate >
<DataTemplate x:Name="GroupHeaderTemplate">
…
<Button Text="Collect"
TextTransform="None"
Command="{Binding Path=BindingContext.ButtonCollectCommand, Source={x:Reference
collectionsPage}, Mode=TwoWay}"
CommandParameter="{Binding .}"
Padding="0"
HeightRequest="34"
WidthRequest="120">
<Button.Triggers>
<DataTrigger TargetType="Button"
Binding="{Binding Path= BindingContext.Items,Source= {RelativeSource Self}, Converter={StaticResource ConverterCollecting}}"
Value="True">
<Setter Property="IsEnabled" Value="False"/>
<Setter Property="Text" Value="Collecting"/>
<Setter Property="BackgroundColor" Value="IndianRed"/>
</DataTrigger>
</Button.Triggers>
|
ViewModel.cs
|
public Command ButtonCollectCommand
=> new Command<object>((x) =>
OnButtonCollectClick(x));
private void
OnButtonCollectClick(object obj)
{
GroupResultSelected = obj as GroupResult;
var items =
GroupResultSelected.Items.ToList<Model>().ToObservableCollection();
ExecuteCollectCommand(items).ConfigureAwait(true);
GetData.Refresh();
}
private async Task
ExecuteCollectCommand(ObservableCollection<Model> pointview)
{
//Alternate True / False
pointview[0].Group.Collecting =
!pointview[0].Group.Collecting;
}
}
|
Attachment:
SimpleListView_MAUI_c4ec41c8.zip
