While using modalpopup we need to use the dialog boxes either in the customized way or we can do it using the already made dialog boxes which just needs to be invoked.

So for doing that we need to make use of the default dialog boxes that can also be customized.

 $("#dialog-confirm").dialog({
            autoOpen: false,
            resizable: false,
            height: 170,
            width: 350,
            show: { effect: 'drop', direction: "up" },
            modal: true,
            draggable: true,
            open: function (event, ui) {
                $(".ui-dialog-titlebar-close").hide();

            },
            buttons: {
                "OK": function () {
                    $(this).dialog("close");
                    window.location.href = url;
                },
                "Cancel": function () {
                    $(this).dialog("close");
                }
            }
        });

In this dialog box we have functionalities to add buttons and modify the size and the look and feel of the modal popup.

$("#dialog-detail").dialog({
            title: 'View User',
            autoOpen: false,
            resizable: false,
            width: 400,
            show: { effect: 'drop', direction: "up" },
            modal: true,
            draggable: true,
            open: function (event, ui) {
                $(".ui-dialog-titlebar-close").hide();
                $(this).load(url);
            },
            buttons: {
                "Close": function () {
                    $(this).dialog("close");
                }
            }
        });