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TreeView Populate On Demand

  For a copy of the sample project please click here to download and install the product evaluation.

Introduction

Using populate on demand feature to dynamically load large TreeView.

Detail

Populate on demand is a feature that is very useful when working with large TreeViews. It is impossible to load the whole TreeView at once, instead it is often desired to load top level items first, and then when user expand a node, the TreeView calls back (through AJAX) to the server to fetch the immediate child nodes of the node to be expanded.

A working sample that demonstrates this feature can be found at here:

http://www.essentialobjects.com/Demo/Default.aspx?path=TreeView\_i1\_i1

You can download the whole package from the download page. The installer installs all controls into your Visual Studio toolbox, and also installs full souce code for the sample project (as Visual Studio projects) as well as documentation in the form of a .chm file. Please refer to those materials for more details.