UI Editor is AGE's tool for designing and building graphical user interfaces (GUIs) from AGE components. It allows you to design and build widgets and windows using on-screen forms using the same widgets that will be used in your application.
Toolsoft UI Mockup is a digital desktop, web and mobile UI mockup design software, helps you improve design efficiency and slash time to market. http://www.toolsoft.net/ui-mockup.html
Very fast AJAX datagrid and many high-quality javascript UI components. The grid works with very large datasets on the client-side without any loss of speed. Supports fixed columns, multiple headers/footers plus sorting, resizing, editing etc.
Nevron Open Vision for .NET is a suite of advanced desktop UI controls that aims to streamline the development of feature-rich Desktop Applications by providing developers with premium quality UI controls that also work on multiple operating systems.
BlackBerry UI Prototyping Stencils help project managers complete UI prototype in few hours and show complete logical design of application UI to customer or graphics designer. Early prototyping without writing a line of code can greatly help.
The NOV Barcode control allows developers to quickly and easily add barcodes to their .NET applications. The Barcode control is fully customizable and provides support for all industry-standard barcode formats.
A set of nearly 550 white and colored business icons for Windows Phone meets and exceeds the strict guidelines for WinRT and Win32 systems. The package includes transparent 48 x 48 images drawn in a central square of 26x26 pixels.