HitTestForCard method takes a TaskColumn-relative location and returns the TaskCard under that location, if any.īy using both those methods, it's possible to determine which card is at a certain point location. HitTestForColumn method takes a TaskBoard-relative location and returns the TaskColumn under that location, if any. This is a scenario where hit testing is needed. Perhaps the app is watching for certain hotkeys to be pressed and needs to know which card is under the mouse. Sometimes it's handy to be able to hit test for a card or column that is at a certain location. These events are where complex logic can be added to determine if certain column/card drops are permitted. Set e.Cancel to true to prevent a certain target from being allowed. ![]() These events provide arguments with the source and target information. ColumnDragOver and CardDragOver events will be raised when appropriate. When dragging a column or card over another target column/card, the TaskBoard. The drop can also be canceled by setting e.Cancel to true on the event arguments. The event includes arguments that tell the old and new locations of the droped column/card. ColumnDropped event and cards raise the CardDropped event. When a drag is completed, columns raise the TaskBoard. Logic for setting it can be done on an individual data item basis via these events. Both of these events support blocking the drag by setting the event arguments' e.Cancel property to true. ColumnDragging event and cards raise the CardDragging event. When dragging is enabled, an event is raised whenever a drag is initiated. Otherwise, if you touch down and immediately drag, the control will think you are trying to scroll the control. Note that when using touch to drag a column or card, you must first hold your finger down on the column/card for at least a quarter second before moving it. CanColumnsDrag and CanCardsDrag properties to false to prevent dragging of columns/cards altogether. Set them to 0.0 to prevent swaying.Ĭolumn and card dragging to reorder is enabled by default as long as the source data item collections implement IList. Both default to 3.0 but can be altered as needed. ColumnDragRotationAngle and CardDragRotationAngle properties respectively. The maximum degrees that a column or card can rotate is based on the TaskBoard. The task board uses smooth sway animations to help convey that a column or card is dragging. The DataTemplateSelector to use for column headers. ![]() The DataTemplate to use for column headers. The DataTemplateSelector to use for column footers. The DataTemplate to use for column footers. The DataTemplateSelector to use for cards. The StyleSelector to use for card containers. These properties on TaskBoard allow for appearance customization: Member A task planning app mgiht put an "Add a task" button in the column footer template. This is followed by an optional column footer. The vertical list of cards within the column renders under the header. Each column renders a header at the top, typically displaying a bold title. A task planning app might put an "Add a list" button in the board footer template. By using a DataTemplateSelector, different appearances can be supplied for cards depending on the data item.Įach task board renders its columns in a horizontal layout, followed by an optional board footer. Any interactive controls, such as buttons, can be placed within a DataTemplate to support advanced functionality like popups within the cards. properties that allow for complete customization of how the board renders and what UI is available. It provides a number of Style, DataTemplate, etc. Customizing the AppearanceĪs described above, the task board is meant to be data-driven. This is a string value that indicates the property name on the data item. Since the column is nested within the board as a second-level control, the property to bind to for card data can be set via the TaskBoard. ![]() ![]() This collection property will be used to generate the column's cards. The TaskColumn control is also an ItemsControl, and its ItemsSource should be bound to a collection property on the data item used for each column. The root TaskBoard control is an ItemsControl, and thus its ItemsSource property should be bound to a collection property, which will be used to generate the board's columns. The task board has been designed specifically to work with MVVM environments. Columns and cards can be dragged around and reordered, all using pleasing sway animations. A task board consists of zero to many columns, each of which can contain zero to many cards. The TaskBoard control makes it easy to add interactive task scheduling and prioritization to your apps.
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