Create a matrix of resizable ASP.NET Splitters, Panels and Multi-page DHTM.
EditByBSEditor: A .NET Assembly DLL that creates a matrix of resizable ASP.NET Splitters, Panels and other Multi-page DHTML objects that go well beyond the capabilities of an HTML Frameset, without any of the common Frameset architectural design problems.
DHTML Features
At the client, the run-time DHTML has many features and abilities. These are a few:
XHTML and HTML Compatibility - Can function within pages that are designed in either XHTML 1 and HTML 4.
Auto-Sizing Panels - Panels will automatically resize to fit the available browser window realestate. Panels can also be constrained to a specific size, perfect for tool bar or caption areas.

Splitter Resizable Panels - Splitters can allow a user to resize Panels using the mouse. Splitter positions can be retained Between ASP.NET Postbacks.

Scrolling Content - The content within each Panel has the ability to be scrolled independant of other content. Scroll state can be retained between ASP.NET Postbacks.

Stackable/Multi-Page PanelSets - Within a PanelSet, the Panels can serve multi-page DHTML content, perfect for implementing tab or wizard-like interfaces. The displayed Panel state can be retained between ASP.NET Postbacks.
Nested PanelSets - Create an unlimited number of nested Horizontal, Vertical or Stackable PanelSets to meet your custom design goals.

Customized Splitter Appearance - PanelSet Splitters can have a customized look by specifying graphics, colors and/or borders.

new:
Detection for Microsoft Internet Explorer 8.0 and Google Chrome
BETAs added for the purpose of compatibility testing. Please
report any rendering problems with these browsers to:
devsupport@coalesys.com

ASP.NET 3.5 Compiled DLL included. You will now find DLLs
compiled for the ASP.NET 1.x, 2.0 and 3.5 frameworks in the
products installation /bin directory. Choose the correct
version depending on your environment. you can free download PanelSet for ASP.NET 1.1 Build 95 now.