• 
  label – A string value representing the name or description of the task.
  


• 
  dateStart – The task’s start date as a string in a valid date format (e.g., 'YYYY-MM-DD').
  


• 
  dateEnd – The task’s end date as a string in a valid date format.
  


• 
  type – Specifies the type of the task. Accepts one of: task (standard activity), project (parent grouping of subtasks), or milestone (key event). Each type may have type-specific behaviors and allowed attributes.
  

• 
  connections – An array of objects defining dependencies between tasks. Each connection object requires:
  
  
  
  • 
    target – An integer specifying the zero-based index of the target task in the main tasks array.
    
  
  
  • 
    type – An integer (0–3) indicating the type of dependency:
    
    
    
    • 0 – Start-to-Start
    
    
    • 1 – End-to-Start
    
    
    • 2 – End-to-End
    
    
    • 3 – Start-to-End
    
    
    
    
  
  
  • 
    lag – A number denoting delay (positive) or overlap (negative) between auto-scheduled tasks, in applicable time units. Used in conjunction with autoSchedule.
    
  
  
  
  


• 
  duration – Describes how long the task lasts (e.g., "3d", "4h", "15m"). Useful when dateEnd is unknown or not specified. Duration always represents total calendar time.
  


• 
  minDuration / maxDuration – Set minimum or maximum allowed duration for the task.
  


• 
  minDateStart / maxDateStart – Define earliest/latest allowed start dates, as strings in valid date formats.
  


• 
  minDateEnd / maxDateEnd – Define earliest/latest allowed end dates, as strings in valid date formats.
  


• 
  progress – A number from 0 to 100 indicating the percentage of work completed.
  


• 
  overdue – A boolean that is true if the task’s dateEnd has passed its deadline.
  


• 
  disableDrag – Boolean. If true, users cannot drag (move) the task on the timeline.
  


• 
  disableResize – Boolean. If true, users cannot resize the duration of the task on the timeline.
  


• 
  dragProject – Boolean. If true, allows the entire project (including all subtasks) to be dragged when the project parent task is dragged. Applicable only to project tasks.
  


• 
  segments – An array of objects allowing a task to be split into multiple segments with different properties (such as distinct start dates, labels, or durations).
  


• 
  synchronized – Boolean. If true, a project’s start and end dates are calculated automatically based on its child tasks, and cannot be moved independently. Applicable only to project tasks.
  


• 
  expanded – Boolean. Determines if a project’s subtasks are visible (expanded). If false, only the project summary bar is displayed. By default, projects are collapsed. Applicable only to project tasks.
  

• Enter – Opens the Window editor, allowing you to edit the currently focused task.


• Delete – Opens a confirmation dialog to confirm the deletion of the currently focused task.

• 
  general – Displays the General tab, which shows the main properties of the task as defined by the taskColumns property.
  


• 
  dependency – Displays the Dependency tab, where users can view, add, or remove connections (dependencies) related to the current task.
  


• 
  segments – Displays the Segments tab, where users can view, create, or delete segments that make up the task.
  

• formatFunction: A callback function that allows customization of the cell content for the column. This function receives two arguments: the label text (as a string) and the index of the resource. It should return a string, which will be used as the displayed cell content.


• min: Sets the minimum width (in pixels or another supported unit) for the column.


• max: Sets the maximum width for the column.


• size: Specifies the fixed width for the column.

• formatFunction: A function for customizing the display content of each cell in the column. Receives the final label value (string) and returns the desired rendering (string or element).


• min: Sets the minimum width of the column (in pixels or CSS units).


• max: Sets the maximum width of the column (in pixels or CSS units).


• size: Sets the default (actual) width of the column (in pixels or CSS units).


• customEditor: A callback for providing a custom editor for the column when editing via a dialog/window. It accepts two arguments:
  
  
  
  • label: The column label.
  
  
  • value: The current cell value in the column.
  
  
  
  The function should return the editor component or element.


• setCustomEditorValue: A callback used to programmatically set the value of the custom editor.


• getCustomEditorValue: A callback used to programmatically retrieve the value from the custom editor.

• day: The timeline displays all hours within a single day, allowing for detailed, intraday scheduling and review.


• week: The timeline presents each day within a single week, providing a broader weekly overview.


• month: The timeline shows individual days across an entire month, making it easy to view and manage monthly schedules.


• year: The timeline displays each month of the year, providing a high-level annual perspective.


• resource: The timeline groups and displays current tasks by the resources assigned to them. Tasks without an assigned resource are grouped under a special "Unassigned" category for easy identification.

• task - the task object.
• segment - the task current segment object. If the task has only one segment, the task object is passed again.
• taskElement - the task's html element.
• segmentElement - the task's segment html element.
• labelElement - the task's segment label html element.

dateFormat: { year: '2-digit', month: 'long', day: 'numeric' }

• name - the name of the task property that is going to be edited.
• value - the value of the task property that is going to be edited.

• editor - an HTMLElement that contains the custom editor that was previously defined by the customEditor function.
• columnValue - the value property of the column.
• value - the value of the task property that the column displays(the editor value).