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| # selection-text-color-treeview-xamarin | ||
| How to change the TreeView selected node text color in Xamarin.Forms (SfTreeView) | ||
| # How to change the TreeView selected node text color in Xamarin.Forms (SfTreeView) | ||
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| In Xamarin.Forms [TreeView](https://help.syncfusion.com/xamarin/treeview/overview?), you can change the text color of selected node by using [SelectionChanging](https://help.syncfusion.com/cr/xamarin/Syncfusion.SfTreeView.XForms~Syncfusion.XForms.TreeView.SfTreeView~SelectionChanging_EV.html?) event. | ||
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| You can also refer the following aricle. | ||
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| https://www.syncfusion.com/kb/11362/how-to-change-the-treeview-selected-node-text-color-in-xamarin-forms-sftreeview | ||
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| **C#** | ||
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| TextColor updated in SelectionChanging event, based on selection added or removed. | ||
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| ``` c# | ||
| public class Behavior : Behavior<SfTreeView> | ||
| { | ||
| SfTreeView TreeView; | ||
| protected override void OnAttachedTo(SfTreeView treeView) | ||
| { | ||
| TreeView = treeView; | ||
| TreeView.SelectionChanging += TreeView_SelectionChanging; | ||
| base.OnAttachedTo(treeView); | ||
| } | ||
| private void TreeView_SelectionChanging(object sender, Syncfusion.XForms.TreeView.ItemSelectionChangingEventArgs e) | ||
| { | ||
| if (TreeView.SelectionMode == Syncfusion.XForms.TreeView.SelectionMode.Single) | ||
| { | ||
| if (e.AddedItems.Count > 0) | ||
| { | ||
| var item = e.AddedItems[0] as FileManager; | ||
| item.LabelColor = Color.Red; | ||
| } | ||
| if (e.RemovedItems.Count > 0) | ||
| { | ||
| var item = e.RemovedItems[0] as FileManager; | ||
| item.LabelColor = Color.Black; | ||
| } | ||
| } | ||
| } | ||
| protected override void OnDetachingFrom(SfTreeView bindable) | ||
| { | ||
| TreeView.SelectionChanging -= TreeView_SelectionChanging; | ||
| base.OnDetachingFrom(bindable); | ||
| } | ||
| } | ||
| ``` | ||
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| **XAML** | ||
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| LabelColor bound to the Label added to SfTreeView in the [ItemTemplate](https://help.syncfusion.com/cr/xamarin/Syncfusion.SfTreeView.XForms~Syncfusion.XForms.TreeView.SfTreeView~ItemTemplate.html?) and Behaviour. | ||
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| ``` xml | ||
| <syncfusion:SfTreeView x:Name="treeView" ItemHeight="40" Indentation="15" | ||
| ExpanderWidth="40" SelectionMode="Single" | ||
| ChildPropertyName="SubFiles" | ||
| SelectionBackgroundColor="LightGray" | ||
| ItemsSource="{Binding ImageNodeInfo}" | ||
| AutoExpandMode="AllNodesExpanded"> | ||
| <syncfusion:SfTreeView.Behaviors> | ||
| <local:Behavior/> | ||
| </syncfusion:SfTreeView.Behaviors> | ||
| <syncfusion:SfTreeView.ItemTemplate> | ||
| <DataTemplate> | ||
| <ViewCell> | ||
| <ViewCell.View> | ||
| <Grid x:Name="grid" RowSpacing="0" BackgroundColor="Transparent"> | ||
| <Grid.RowDefinitions> | ||
| <RowDefinition Height="*" /> | ||
| <RowDefinition Height="1" /> | ||
| </Grid.RowDefinitions> | ||
| <Grid RowSpacing="0" Grid.Row="0"> | ||
| <Grid.ColumnDefinitions> | ||
| <ColumnDefinition Width="40" /> | ||
| <ColumnDefinition Width="*" /> | ||
| </Grid.ColumnDefinitions> | ||
| <Grid Padding="5,5,5,5"> | ||
| <Image | ||
| Source="{Binding ImageIcon}" | ||
| VerticalOptions="Center" | ||
| HorizontalOptions="Center" | ||
| HeightRequest="35" | ||
| WidthRequest="35"/> | ||
| </Grid> | ||
| <Grid Grid.Column="1" RowSpacing="1" Padding="1,0,0,0" | ||
| VerticalOptions="Center"> | ||
| <Label x:Name="TextLabel" LineBreakMode="NoWrap" | ||
| Text="{Binding ItemName}" | ||
| TextColor="{Binding LabelColor}" | ||
| VerticalTextAlignment="Center"> | ||
| <Label.FontSize> | ||
| <OnPlatform x:TypeArguments="x:Double"> | ||
| <On Platform="Android,iOS"> | ||
| <OnIdiom x:TypeArguments="x:Double" Phone="16" Tablet="18" /> | ||
| </On> | ||
| </OnPlatform> | ||
| </Label.FontSize> | ||
| </Label> | ||
| </Grid> | ||
| </Grid> | ||
| <StackLayout Grid.Row="1" HeightRequest="1"/> | ||
| </Grid> | ||
| </ViewCell.View> | ||
| </ViewCell> | ||
| </DataTemplate> | ||
| </syncfusion:SfTreeView.ItemTemplate> | ||
| </syncfusion:SfTreeView> | ||
| ``` | ||
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| **Output** | ||
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