Improved Performance

We put a considerable effort into optimizing Better ListView 2 to provide advanced features (e.g. hierarchical and multi-line items, collapsible groups) while still being swift and responsive.

The overall performance has greatly improved. Better ListView 2.1 can easily handle 10.000 items while still being very fast. The parts where improvements are best seen are:

Samples in both C# and Visual Basic

We added easy to understand samples for both C# and Visual Basic.

You can simply follow a link from start menu to open the Visual Studio project for your favourite language, and play with all the features of Better ListView.

C# and VB Samples projects in Solution Explorer

Extended Documentation

We added a Quick Start Tutorial to help you with setup, activation and integration of Better ListView in your projects, as well as many entirely new chapters in the documentation.

All code samples are from now on provided in both C# and Visual Basic to be easy to understand to both C# and VB.net developers.

Smoother migration from .NET ListView to Better ListView

Better ListView now contains all the constructor/method overloads and properties of the regular .NET ListView, so that for each member of .NET ListView there is an easily discoverable equivalent in Better ListView.

• Groups – to enable grouping items into collapsible areas with “group headers”
• Item Hierarchy – to allow for visually organizing items like in the tree

We are facing some non-trivial obstacles on the journey You might be interested in:

Tree Structure vs List Structure

In all tree/list hybrid controls we saw there is an underlying tree structure made of nodes (like in the TreeView control). These hybrid controls are basically a tree with ability to be displayed as list.

In Better ListView, however, the primary data structure is a list, which is flat. Item hierarchy is still possible and really simple to use, just by enabling the user to set level of any item. If the item has higher level than some item above it, Better ListView will display this as a “child” item, allowing user to even collapse parent item without affecting the data structure. Sorting is also possible through “range sort”, e.g. sort only selected items or items in a certain level of hierarchy.

Compared to tree-like structure, user can still bind an IList to Better ListView or serialize/traverse through the whole item “hierarchy” with a simple foreach block.

Keeping Native Look

.NET 2.0 supports visual styles through its VisualStyleElement and VisualStyleRenderer classes, but this support is limited to basic elements. When it comes to shiny new elements that can be seen in Windows Explorer (e.g. triangular expando buttons or styles group headers), one have to hack into Windows theme to obtain correct constants. We did this nasty work to bring user visual style that matches exactly what he sees in native controls:

Visual Style Elements for Groups

The picture shows all the elements used in “Groups” and “Item Hierarchy” features. As You can see, it is a LOT. Only group header alone has 15 (!) states that should be drawn each in its specific situation. And Better ListView will handle all of them automatically for you.

We’ve taken customized themes into consideration, as well as older themes like “Vista Basic” or “XP Luna” or “Classic”. In all cases, we test control display thoroughly to obtain consistent results (a solid reference for us is a good old Windows Explorer as it shows most up-to-date wonders of native ListView control in each version of Windows at one place).