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A task constraint in Project.net allows the start and finish date of a task to be set no later than, no earlier than, or on a specific date.


Tasks in Project.net have constraints that require that the start and/or finish date of a task be no later than, no earlier than, or on a specific date.

Project.net has two kinds of leaf tasks – manual and automatic
Manual tasks are manually scheduled.  They should be used when you want to explicitly set a task's start and finish dates and not allow it to be changed automatically by the scheduler based on changes to other tasks.

Project.net has two kinds of leaf tasks – manual and automatic. Automatic tasks are automatically scheduled.


Project.net, like Microsoft Project, supports 3 calculation types (also called task types) – fixed-work, fixed-duration, and fixed-units.  In this article, we're going to talk about how they affect work and duration, and which one you should use.

NOTE: This article is only going to discuss tasks that

Project.net Community

Here are just a few things you can find in the community section of our website.


Introduces Advanced Scheduling Engine, Business Intelligence Capabilities and Drag & Drop Workplans

Bedford, MA–December 10, 2013–Project.net Inc., the leader in Open Source collaborative Project Management and Project Portfolio Management (PPM) today released Version 9.4 of Project.net™.

1st Open Source Project Portfolio Management (PPM) Solution Included in Market Scope

Bedford, Ma. — May 14, 2013 — Project.net Inc., the leader in collaborative Project Management and Portfolio Management (PPM), has been included by Gartner, Inc. in its "MarketScope for IT Project and Portfolio Management Software Applications" research report. Project.net provides organizations with an enterprise-grade, customizable and robust alternative to expensive and proprietary monolithic applications.