How to create two footer rows in jqgrid - asp.net-mvc

Question

I am working on jqgrid with ASP.NET WEB API.
I want to add two rows in the footer of jqgrid.
So a little search on the net brought me to this link (2010) which says "It is not possible", I am thinking as the answer is of 2010, may be by now some thing / some workaround may have been made possible for this.
What do I want to show in footer ?
I want to show two rows
Total for data preset in current page
Grand total for data present in all of the pages
I am able to pass the data and read the data, the question is how to use this data and create two footer rows in jqgrid.
Any thoughts ?

Answer 1

I found the question interesting, so I created the demo which demonstrates one from the possible implementation of two-rows footer:
The main idea is to add the second row in the table where the standard footer already exist. To eliminate possible problems with other parts of jqGrid code I replaced footrow class name in the custom row to myfootrow. To have the same CSS settings for the second footer as the original tooter has I included the copy of .ui-jqgrid tr.footrow td from ui.jqgrid.css with the same definitions for .ui-jqgrid tr.myfootrow td:
.ui-jqgrid tr.myfootrow td {
font-weight: bold;
overflow: hidden;
white-space:nowrap;
height: 21px;
padding: 0 2px 0 2px;
border-top-width: 1px;
border-top-color: inherit;
border-top-style: solid;
}
The full code you will find below
footerrow: true,
loadComplete: function () {
var $this = $(this),
sum = $this.jqGrid("getCol", "amount", false, "sum"),
$footerRow = $(this.grid.sDiv).find("tr.footrow"),
localData = $this.jqGrid("getGridParam", "data"),
totalRows = localData.length,
totalSum = 0,
$newFooterRow,
i;
$newFooterRow = $(this.grid.sDiv).find("tr.myfootrow");
if ($newFooterRow.length === 0) {
// add second row of the footer if it's not exist
$newFooterRow = $footerRow.clone();
$newFooterRow.removeClass("footrow")
.addClass("myfootrow ui-widget-content");
$newFooterRow.children("td").each(function () {
this.style.width = ""; // remove width from inline CSS
});
$newFooterRow.insertAfter($footerRow);
}
$this.jqGrid("footerData", "set", {invdate: "Total (page):", amount: sum});
// calculate the value for the second footer row
for (i = 0; i < totalRows; i++) {
totalSum += parseInt(localData[i].amount, 10);
}
$newFooterRow.find(">td[aria-describedby=" + this.id + "_invdate]")
.text("Grand Total:");
$newFooterRow.find(">td[aria-describedby=" + this.id + "_amount]")
.text($.fmatter.util.NumberFormat(totalSum, $.jgrid.formatter.number));
}
In the code I set additional information in columns invdate and amount of the footer.