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DlhSoft Hierarchical Data Library
for Windows® Presentation Foundation (WPF) and .NET 4
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Product News
The latest news related to Hierarchical Data Library for WPF 4 are presented below:
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Hierarchical Data Library for WPF 4: 4/29/2010
A new product version (4.0) is available for Hierarchical Data Library for WPF. It includes the same controls as the previous version, but it runs on the .NET 4 platform, using all improvements, including performance related, that Microsoft has included within its latest Framwork version. Upgrading from Project Management Library 3.1 to 4.0 is free: you just need to request an upgrade license file from the Purchase License page of our Web site (DlhSoft.com/Purchase); the discounted price would be zero, as long as you have already been licensed for using the 3.1 version of the product.
Minor changes and improvements within Hierarchical Data Library for WPF: 4/13/2010
The new build (3.0.9) of Hierarchical Data Library for WPF includes a set of minor changes and improvements, including node expand/collapse performance improvements.
How to define custom item level attached properties within Hierarchical Data Library for WPF 3.5: 12/3/2009
DlhSoft has added a new Custom Properties sample application for TreeListView control showing how you can define item level attached properties and bind them within custom grid view columns within the updated build (3.0.8) of Hierarchical Data Library for WPF 3.5.
How to disable or hide node expanders within Hierarchical Data Library for WPF 3.5: 12/3/2009
DlhSoft has updated the Read Only Elements sample application for TreeListView control showing how you can disable or hide node expansion toggle buttons at item level within the updated build (3.0.8) of Hierarchical Data Library for WPF 3.5.
How to provide hierarchical sort operations within Hierarchical Data Library for WPF 3.5: 12/3/2009
DlhSoft has added a new Sorting sample application for TreeListView showing how you can provide hierarchical sorting operations for data bound to the control within the updated build (3.0.8) of Hierarchical Data Library for WPF 3.5.
Increased performance and minor issues resolved within Hierarchical Data Library for WPF 3.5: 10/31/2009
DlhSoft has updated data loading code to increase performance and resolved a set of minor issues found in previous product builds within the updated build (3.0.7) of Hierarchical Data Library for WPF 3.5.
Data load performance increased using simple data management mode within Hierarchical Data Library for WPF 3.5: 9/1/2009
DlhSoft has added a new data management mode option for the NodeManager business logic provider class within the updated build (3.0.6) of Hierarchical Data Library for WPF 3.5. When using the simple data management mode you may access, update, add, and remove managed nodes yourself, avoiding data binding to specific item collections, and therefore improving data load performance. The Increase Performance sample application for the included TaskListView control were updated and present appropriate usage examples.
Memory performance increased using data load deferring based on scroll ratio within Hierarchical Data Library for WPF 3.5: 9/1/2009
DlhSoft has added a new IsAsyncPresentationLoadDeferredScrollRatio option for the TreeListView control within the updated build (3.0.6) of Hierarchical Data Library for WPF 3.5. When using this option the asynchronous data loading is partially deferred until the end user actually scrolls down to view specific nodes in the list and therefore less memory is usually required by the control. The Increase Performance sample application for the included TreeListView control was updated and presents appropriate usage examples.
Minor issues resolved within Hierarchical Data Library for WPF 3.5: 9/1/2009
DlhSoft has resolved a set of minor issues found in previous product builds within the updated build (3.0.6) of Hierarchical Data Library for WPF 3.5.
Build 3.0.5 for Hierarchical Data Library for WPF 3.5: 5/27/2009
DlhSoft has published an updated build (3.0.5) for Hierarchical Data Library for WPF 3.5: it contains a set of corrections for the previously found issues, and a set of new features (for the previously existing controls and classes). For more information about the product and to download the updated build please go to DlhSoft.com/HierarchicalData. Note that the new build can be installed and used side by side with any previous build of the software and any license that you may have already purchased for the product (version 3.0) works with this build also (tough you will need to install the license file again using the License Manager tool available in the product menu of the new build).
Build 3.0.4 for Hierarchical Data Library for WPF 3.5: 2/20/2009
DlhSoft has published an updated build (3.0.4) for Hierarchical Data Library for WPF 3.5: it contains a set of corrections for the previously found issues, a set of new features such as leaf node counting, visibility definition at entity level, and new or updated sample applications demonstrating features such as item selection highlight brush styling, leaf node count statistics, and enabling support for task drag and drop operations (for TreeListView control). For more information about the product and to download the updated build please go to DlhSoft.com/HierarchicalData. Note that the new build can be installed and used side by side with any previous build of the software and any license that you may have already purchased for the product (version 3.0) works with this build also (tough you will need to install the license file again using the License Manager tool available in the product menu of the new build).
Build 3.0.3 for Hierarchical Data Library for WPF 3.5: 10/30/2008
DlhSoft has published an updated build (3.0.3) for Hierarchical Data Library for WPF 3.5: it contains a set of corrections for the previously found issues and a new product overview sample application also available as runtime demo from the Start menu or from the Web site. For more information about the product please go to DlhSoft.com/HierarchicalData. Note that the new build can be installed and used side by side with any previous build of the software and any license that you may have already purchased for the product (version 3.0) works with this build also (tough you will need to install the license file again using the License Manager tool available in the product menu of the new build).
Build 3.0.2 for Hierarchical Data Library for WPF 3.5: 9/29/2008
DlhSoft has published an updated build (3.0.2) for Hierarchical Data Library for WPF 3.5: it contains a set of new or updated features to integrate the product with .NET Framework 3.5 Service Pack 1 and Visual Studio® 2008 Service Pack 1. For more information about the product please go to DlhSoft.com/HierarchicalData. Note that the new build can be installed and used side by side with any previous build of the software and any license that you may have already purchased for the product (version 3.0) works with this build also (tough you will need to install the license file again using the License Manager tool available in the product menu of the new build).
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