How to trigger ItemHolding event using mouse hold in the Xamarin.Forms TreeView?
The Xamarin.Forms TreeView allows you to trigger the ItemHolding event using mouse hold in the UWP platform by using the HoldGesture attached property.
XAML
Set Hold and HoldWithMouse to HoldGesture to trigger the ItemHolding event when holding the item with the mouse.
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:local="clr-namespace:TreeViewXamarin"
xmlns:syncfusion="clr-namespace:Syncfusion.XForms.TreeView;assembly=Syncfusion.SfTreeView.XForms"
xmlns:windowsspecific="clr-namespace:Syncfusion.XForms.TreeView.PlatformConfiguration.WindowsSpecific;assembly=Syncfusion.SfTreeView.XForms"
x:Class="TreeViewXamarin.MainPage">
<ContentPage.BindingContext>
<local:FileManagerViewModel x:Name="viewModel"/>
</ContentPage.BindingContext>
<StackLayout>
<syncfusion:SfTreeView x:Name="treeView" windowsspecific:TreeView.HoldGesture="Hold,HoldWithMouse" ChildPropertyName="SubFiles" ItemTemplateContextType="Node" AutoExpandMode="AllNodesExpanded" ItemsSource="{Binding ImageNodeInfo}">
<syncfusion:SfTreeView.Behaviors>
<local:TreeViewBehavior/>
</syncfusion:SfTreeView.Behaviors>
<syncfusion:SfTreeView.ItemTemplate>
<DataTemplate>
<Grid x:Name="grid" RowSpacing="0" >
...
</Grid>
</DataTemplate>
</syncfusion:SfTreeView.ItemTemplate>
</syncfusion:SfTreeView>
</StackLayout>
</ContentPage>
Conclusion
I hope you enjoyed learning about how to trigger ItemHolding event using mouse hold in the 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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