how-to-sort-the-TreeView-node-in-SfTreeView

This repository demonstrates how to sort the treeview nodes in SfTreeView.

Sample

XAML

        <Button Text="Sort TreeView" Command="{Binding TreeViewSortCommand}" HeightRequest="50" Grid.Row="0" />
        <syncfusion:SfTreeView x:Name="treeView" Grid.Row="1" ChildPropertyName="SubFiles" ItemTemplateContextType="Node" AutoExpandMode="AllNodesExpanded" ItemsSource="{Binding ImageNodeInfo}">
            <syncfusion:SfTreeView.ItemTemplate>
                <DataTemplate>
                    <Grid x:Name="grid" RowSpacing="0" >
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="40" />
                            <ColumnDefinition Width="*" />
                        </Grid.ColumnDefinitions>
                        <Image Source="{Binding Content.ImageIcon}" VerticalOptions="Center" HorizontalOptions="Center" HeightRequest="35" WidthRequest="35"/>
                        <Grid Grid.Column="1" RowSpacing="1" Padding="1,0,0,0" VerticalOptions="Center">
                            <Label LineBreakMode="NoWrap" Text="{Binding Content.ItemName}" VerticalTextAlignment="Center"/>
                        </Grid>
                    </Grid>
                </DataTemplate>
            </syncfusion:SfTreeView.ItemTemplate>
        </syncfusion:SfTreeView>

View Model

   public class FileManagerViewModel : INotifyPropertyChanged
    {
        #region Fields

        private ObservableCollection<FileManager> imageNodeInfo;

        #endregion

        #region Constructor

        public FileManagerViewModel()
        {
            TreeViewSortCommand = new Command(OnTreeViewSortClicked);
            GenerateSource();
        }

        #endregion

        #region Properties

        public ObservableCollection<FileManager> ImageNodeInfo
        {
            get
            {
                return imageNodeInfo;
            }
            set
            {
                this.imageNodeInfo = value;
                this.RaisedOnPropertyChanged("ImageNodeInfo");
            }
        }

        public Command TreeViewSortCommand { get; set; }

        #endregion

        #region Command method

        private void OnTreeViewSortClicked(object obj)
        {
            this.ImageNodeInfo = new ObservableCollection<FileManager>(ImageNodeInfo.OrderBy(i => i.ItemName));
        }
}

Requirements to run the demo

To run the demo, refer to System Requirements for .NET MAUI.

Make sure that you have the compatible versions of Visual Studio 2022 with the Dot NET MAUI workload and .NET Core SDK 7.0 or later version in your machine before starting to work on this project.

Troubleshooting:

Path too long exception

If you are facing path too long exception when building this example project, close Visual Studio and rename the repository to short and build the project.

License

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