I want to enable mutiple selection on my grid and I want to get the primary keys of the multiple selected rows which I want to pass down to my controller's ActionMethod.

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In single selection i used this method to get the primary key of my selected row:

//
    function rowSelectionChangedHandler(evt, ui) {
        var input = document.getElementById("hdnSelectedRow");
        //input.value = ui.row.index;    //    Will pass the row index.
        input.value = ui.row.element.attr("data-id");    //    Will pass the row's primary key..
    }
// ]]>

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Now how do i get all the primary keys of the selected rows and get them as parameters in my mvc controller's action method.

And is there a way to pass all the primary keys of selected rows by storing them in a single hidden field like i did for single selection ? Because i dont wan to use ajaxPost to send these value to my actionmethod because it would get messy afterwards. iPlease share a small code snippet, thanks in advance