How to select\unselect all records in a form grid

 While adding standard command button you can opt for SelectAll to mark all records in a form grid. However, there is no such a command for the opposite - unselect all records.

You can easily achieve it by using the following method and two usual button form controls.

[Form]
public class myForm extends FormRun
{
    public void selectAll(boolean _select)
    {
        VendPaymFormat_DS.markAllLoadedRecords(_select);
    }

    [Control("Button")]
    class FormButtonControlSelectAll
    {
        public void clicked()
        {
            element.selectAll(true);
            super();
        }
    }

    [Control("Button")]
    class FormButtonControlUnSelectAll
    {
        public void clicked()
        {
            element.selectAll(false);
            super();
        }
    }
}