TIWCGJQGridOptions.OnSelectAll Property
This event fires when multiselect option is true and you click on the header checkbox. aRowids array of the selected rows (rowid's). status - boolean variable determining the status of the header check box - true if checked, false if not checked. Note that the aRowids alway contain the ids when header checkbox is checked or unchecked.
published property OnSelectAll: TIWCGJSonFunc index 98 read GetFuncValue write SetFuncValue stored IsFuncStored;