I am creating an extendedDataTable dynamically, And I need to put a check box at the header to perform CheckAll operation.
I was able to add the checkBox at the header, but how I can connect it with other checkboxes in the grid rows
so checkboxes in columns should be pointed to iteration object properties. And in action of support connected to common checkbox you need just iterate through list and set all this object properties to true. And reRender the table. B.t.w. the support on common checkbox should be ajax single in order not to process all the checkboxes as submitted.