scrollTop

Gets or sets the current vertical position of the Grid's scrollbar, when scrolling is on.

The vertical scroll position is the same as the number of pixels that are hidden from view above the scrollable area.

$("#grid").shieldGrid({
    dataSource: {
        data: gridData                 
    },
    rowHover: false, 
    scrolling: {
        virtual: true
    },
    sorting: true,
    height: 400
});

// set the current scroll to top
$("#grid").swidget().scrollTop(500);

// prints 500
console.log($("#grid").swidget().scrollTop());