Feed: Flexible TreeView - AggScore: 73.1

Use Flexible TreeView in WPF project

Do you have a WPF project and want to use Flexible TreeView there? No problem!

Flexible TreeView v3.4

Flexible TreeView v3.4 maintenance release has been released.

Flexible TreeView v3.3

Flexible TreeView v3.3 maintenance release has been released. Separate assemblies for .NET 2.0, 4.0 and 4.0 Client Profile, HTML markup extension, etc.

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Flexible TreeView v3.2

Flexible TreeView v3.2 has been released. Bidirectional data binding delivered!

We are happy to announce Flexible TreeView v3.2 which brings new useful features to our users.

Bidirectional data binding

This version provides new and useful feature - bidirectional data binding mode. With this feature you don`t need to monitor treeview or bound data source changes. Instead you just enable the DataBinding.BidirectionalMode treeview property and Flexible TreeView will synchronize the treeview or data source for you automatically.

Please, refer to the topic Bidirectional mode for details. Topics Data Binding. Get started, Prepare data source and Inspection was updated as well with new information and samples.

DataBindingElementAttribute expanded

With previous versions our users was able to use the DataBindingElementAttribute attribute to tune the data binding result. The new version of Flexible TreeView expands this attribute to provide more options to decrease the amount of additional code that users need to write manually.

Now, if data source fields have this attribute applied with the same values of the DisplayName property, all of them will be automatically displayed (grouped) under one column with the caption indicated in DisplayName property. In this case the order they are displayed in the column will be identical to a sequence order of the fields in a data object class.

The AutoSizeColumn property has been added. When enabled, the width of a generated column calculated automatically based on the content in this column.

Please read change log for release details.

Flexible TreeView v3.1

Flexible TreeView v3.1 maintenance release has been released. All users need to upgrade to this version.

Flexible TreeView v3.1 maintenance release has been released. All users need to upgrade to this version.

Please read change log for release details.

Extend trial period

Need more time to try all Flexible TreeView features but trial period has expired?

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For additional information on discounts, please contact us.

Flexible TreeView v3.0

Flexible TreeView v3.0 has been released with impressive performance improvements. Now Flexible TreeView is the fastest treeview control on the market!

After a long period of development, we are pleased to offer you the new major release. This release doesn`t contain many visual changes, instead it has great internal changes, making it possible for users to work with data on a new, much better level.

Performance increased by 90%!

The redesigned control architecture is a key upgrade in this release. This makes it possible to increase operating speed by 90% with a high number of nodes, in both bound and unbound modes. Working with Flexible TreeView, your users will be able to accomplish their tasks as quickly as possible.

With these changes, Flexible TreeView now is the most fastest among all tree-like controls on the market.
In some cases, Flexible TreeView 150 times faster than other controls.

Below there are the results of comparing node addition speed (unbound mode) and data source loads (bound mode) for Flexible TreeView and some other treeview controls from the best-known vendors on the market.

Used pseudo code for bound mode:

tree.ClearAllNodes();
object dataSource = GenerateDataSourceItems(itemsCount);
 
StartTimer();
tree.BeginUpdate();
tree.DataSource = dataSource;
tree.EndUpdate();
StopTimer();

Used pseudo code for unbound mode:

tree.ClearAllNodes();
 
StartTimer();
tree.BeginUpdate();
for(int i=0; i<</span>nodesCount; i++)
{
   Node node = new Node("Node"+i);
   Tree.Nodes.Add(node);
}
tree.EndUpdate();
StopTimer();

The table below shows how quick treeviews can add the specified amount of nodes.

* The table shows average performance calculated for many iterations.
** Tests was executed on the same hardware.

Also, please check the 'Huge data source' new sample in the supplied Samples Suite demo application where you can test the Flexible TreeView performance manually.

Flexible TreeView performance improvements hint

In fact, the availability of columns influences the speed of adding and deleting nodes in Flexible TreeView. If there are columns in the tree, when changing node content, it doesn't need to recalculate maximum width of all nodes in order to show a horizontal scroll, meaning that its work is significantly accelerated.
If the treeview contains no columns, with each change the treeview must recalculate maximum  width of all nodes, which can slow work down if there are many nodes.

Therefore, in order to accelerate your work with nodes, you should add at least one column, if possible.

SmartVerticalScrollSpeedFactor

Flexible TreeView also offers a very useful feature - Smart Vertical Scroll. When selecting a node, smart vertical scroll feature scroll the treeview automatically in a horizontal direction, in order to show user the selected node (in a multi-level treeview), meaning that there is no need to scroll manually. At the same time, scrolling speed was formerly constant and some users found it to be fast, others found it too slow.
In this release, we offer the developer the opportunity to adjust the speed of auto-scroll, using the SmartVerticalScrollSpeedFactor treeview property. This makes it possible to adapt to user preferences.

Also, some bugs have been fixed. Please read change log for details.

Flexible TreeView v2.8

Flexible TreeView v2.8 has been released with the possibility to move the plus-minus sign into other non-first column; display other node controls on the left side of the plus-minus sign and much more.

We are pleased to present you with the new version 2.8 of Flexible TreeView, which provides more flexibility when dealing with hierarchical data.

We thank our users for their feedback. We always trying to review each feedback individually and implement it in the next new versions if possible.
Currently we are working hard to port Flexible TreeView to Silverlight and WPF platforms; alongside we are considering the possibility of implementing Flexible TreeView on ASP.NET and Windows Phone 7. Thus, you will get the opportunity to work with hierarchical data on the desktop platforms as well as in the Web.

Flexible TreeView v2.7

Flexible TreeView v2.7 has been released with completely reimplemented data binding support.

Download the trial now to see all new features in action in the complete demo application.

See the Change log for complete list of changes.