We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

How to expand the particular TreeView node in Xamarin.Forms (SfTreeView)

Platform: Xamarin.Forms |
Control: SfTreeView

You can expand the particular TreeView node in Xamarin.Forms using ExpandNode method.

C#

TreeView node Downloads is expanded when the TreeView is loaded.

public class Behavior : Behavior<SfTreeView>
{
    SfTreeView treeView;
    protected override void OnAttachedTo(SfTreeView bindable)
    {
        treeView = bindable;
        treeView.Loaded += TreeView_Loaded;
        treeView.CollapseAll();
        base.OnAttachedTo(bindable);
    }
    private void TreeView_Loaded(object sender, Syncfusion.XForms.TreeView.TreeViewLoadedEventArgs e)
    {
        int TotalNodes = treeView.Nodes.Count();
        for (int i = 0; i < TotalNodes; i++)
        {
            TreeViewNode node = treeView.Nodes[i];
            var content = (node.Content as Folder).FileName;
            if (content.ToString() == "Downloads")
            {
                treeView.ExpandNode(node);
            }
        }
    }
    protected override void OnDetachingFrom(SfTreeView bindable)
    {
        treeView.Loaded -= TreeView_Loaded;
        base.OnDetachingFrom(bindable);
    }
}

View sample in GitHub

2X faster development

The ultimate Xamarin UI toolkit to boost your development speed.
ADD COMMENT
You must log in to leave a comment

Please sign in to access our KB

This page will automatically be redirected to the sign-in page in 10 seconds.

Up arrow icon

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon

Live Chat Icon For mobile