Class that adds extra checkboxes to header and group cells of FlexGrid boolean columns to allow setting the values for all items or groups.
** Note **: When you attach a BooleanChecker to a Column, you may also want to set the column's aggregate property to First, so the grid will create cells on group header rows to hold the checkboxes used to set the boolean values for the groups.
constructor(column?: Column, options?: any): BooleanChecker
Initializes a new instance of the BooleanChecker class.
The Column that this BooleanChecker should customize.
An object containing initialization data for the object.
Gets or sets the aria label property of selector.
The default value for this property is **''**.
onColumnChanged(e?: EventArgs): void
Raises the columnChanged event.
onColumnChanging(e: CancelEventArgs): boolean
Raises the columnChanging event.
CancelEventArgs that contains the event data.
onItemChecked(e?: EventArgs): void
Raises the itemChecked event.
Occurs after the value of the column property changes.
Occurs before the value of the column property changes.
