Hi Jonathan,
Thank you for contacting Syncfusion Support.
Yes, we have included the fix to achieve the reported requirement “Multi-level grouping in SfListView” by sample level in our latest service pack release and you can download the same from the below link.
And also, for your reference we have prepared the sample which illustrates to achieve the Multi-level grouping with SfListView and you can download it from the below location.
In the above sample, we have used the converter to define the left margin of the GroupHeaderTemplate based on the Level of the group by which you can achieve the hierarchical structure like the below code example.
Code example[XAML]:
|
<ContentPage.Resources>
<ResourceDictionary>
<local:GroupHeaderConvertor x:Key="TemplateConverter"/>
</ResourceDictionary>
</ContentPage.Resources>
…
<listView:SfListView x:Name="listView" ItemsSource="{Binding contactsinfo}">
<listView:SfListView.GroupHeaderTemplate>
<DataTemplate>
<ViewCell>
<ViewCell.View>
<StackLayout BackgroundColor="#E4E4E4" Margin="{Binding Level,Converter={StaticResource TemplateConverter}}">
<Label Text="{Binding Key}" FontSize="22" FontAttributes="Bold" VerticalOptions="Center"
HorizontalOptions="Start" Margin="20,0,0,0" />
</StackLayout>
</ViewCell.View>
</ViewCell>
</DataTemplate>
</listView:SfListView.GroupHeaderTemplate> |
Code example[C#]:
|
public class GroupHeaderConvertor : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if ((int)value == 1)
return new Thickness(5, 5, 5, 0);
else
return new Thickness((int)value * 15, 5, 5, 0);
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
} |
Please let us know if you require further assistance.
Regards,
G.Muthu Kumaran.
