Runtime creating and resizing .Spire.Designer provides support to Move, re-size, and create objects controls at runtime. The controls can be moved using mouse as well as keyboard.. Rich functions Multi-select, edit and designer events, Relative Align controls, Undo and Redo, Saving and loading form to/from file, Customizable designer features. Standard and 3rd party components supporting , nested controls supporting Dynamic component information Tool tip in runtime design. Pure .NET component written in 100% manged C#