How to conditionally hide the checkbox in Xamarin.Forms TreeView (SfTreeView)?
You can show/hide the CheckBox based on Level in Xamarin.Forms TreeView.
XAML
Bind the SfCheckBox.IsVisible property with TreeViewNode.Level and define converter to handle the Visibility.
<treeView:SfTreeView x:Name="treeView"
ItemTemplateContextType="Node"
CheckBoxMode="Recursive"
AutoExpandMode="RootNodesExpanded"
CheckedItems="{Binding CheckedItems}"
ItemsSource="{Binding Folders}">
<treeView:SfTreeView.HierarchyPropertyDescriptors>
<treeViewEngine:HierarchyPropertyDescriptor TargetType="{x:Type local:Folder}" ChildPropertyName="SubFolder"/>
<treeViewEngine:HierarchyPropertyDescriptor TargetType="{x:Type local:SubFolder}" ChildPropertyName="Files"/>
<treeViewEngine:HierarchyPropertyDescriptor TargetType="{x:Type local:File}" ChildPropertyName="SubFiles"/>
</treeView:SfTreeView.HierarchyPropertyDescriptors>
<treeView:SfTreeView.ItemTemplate>
<DataTemplate>
<Grid Padding="5">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="40"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<checkBox:SfCheckBox x:Name="CheckBox" IsChecked="{Binding IsChecked, Mode=TwoWay}" CornerRadius="2" IsVisible="{Binding Level, Converter={StaticResource checkBoxVisibilityConverter}}"/>
<Label Text="{Binding Content.FileName}" VerticalOptions="CenterAndExpand" HorizontalOptions="StartAndExpand" Grid.Column="1"/>
</Grid>
</DataTemplate>
</treeView:SfTreeView.ItemTemplate>
</treeView:SfTreeView>
C#
The converter returns the true/false, based on the Level.
public class CheckBoxVisibilityConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
return (int)value == 0 ? false : true;
}
}
Conclusion
I hope you enjoyed learning about how to conditionally hide the checkbox in Xamarin.Forms TreeView (SfTreeView).
You can refer to our Xamarin.Forms TreeView feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.
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