Task Bar
Task bar conventions fall into two categories:
Conventions for the left-to-right ordering of the task buttons.
Conventions and mechanisms for handling the enabled/disabled state of the different types of tasks.
Task Button Order
On List Pages, tasks should be ordered in the taskbar in the following order, starting from the left:
Individual item tasks that do not require selection. For example, View, New, and Compose.
Individual item tasks that do require selection. For example, "Open", "Run", "Preview", and "ViewDetails". Paired tasks also belong in this category. For example, "Delete/Restore" and "Archive/Unarchive".
Tasks that operate on the entire list. For example, "Publish", "Refresh", and "Find".
When in doubt, use the modules delivered with Commerce Server as examples.
On Edit Pages, order tasks as follows:
[Back] [SaveBack] [Save] [SaveNew]
Enabling and Disabling Tasks
The New and Find tasks are automatically enabled by the Framework routine OnLoad. When a New task menu is used, the individual menu items must be enabled and disabled by the module page.
The Save and SaveNew tasks are automatically managed by the Framework so long as there is one top level (master) EditSheet HTC that has the OnChange, OnRequire, and OnValid events handled by the SetDirty, SetRequire, and SetValid methods, respectively. In general, the Save and SaveNew tasks should only be enabled when something has been changed and there is no missing required data and no invalid data.
Tasks must be re-enabled after an OnTask routine has been cancelled and the form is not submitted.
The Open, Copy, and Delete tasks should only be enabled when item(s) that support the respective operation are selected. Other tasks that depend on an item being selected should behave in the same way.
The Back task on Edit Pages is always enabled by the Framework.
Tasks that are always available should be enabled in the OnLoad routine and whenever an OnTask routine does not submit the form.