do this pls
NavigateUrl="javascript:window.printPartOfPage(this)"
and pre configure your function that
function printPartOfPage(strid) {
var printContent = strid;
var windowUrl = 'about:blank';
var uniqueName = new Date();
var windowName = 'Print' + uniqueName.getTime();
var printWindow = window.open(windowUrl, windowName, 'left=50000,top=50000,width=0,height=0');
printWindow.document.write(printContent.innerHTML);
printWindow.document.close();
printWindow.focus();
printWindow.print();
printWindow.close();
}
i tried it worked