AddFlow for WinForms Professional 2015 AddFlow for WinForms 2015 is a .NET Windows Forms Custom control that is useful each time you need to display and use relationships between objects in your application: workflow diagrams, database diagrams, communication networks, organizational charts, process flows, state transitions diagrams, telephone call centers, CRM (Customer Relationship Management), expert systems, graph theory, quality control diagrams and more. Drawings can be made interactively or programmatically. The professional edition also includes a set of graph layout algorithms (Hierarchic, Force-directed, orthogonal, series-parallel, tree, radial).