The “Loaded x of y” information that showed in WebGrid status bar will be replaced by ClassicPaging UI (FirstPrevNextLast style; SimpleDropDown style; Slider style) when PagingMode is set to “ClassicPaging”.

If PagingMode is set either to “None” or “VirtualLoad”, the “Loaded x of y” information will still available in WebGrid status bar. So, the most suitable solution for your required scenario, to display the number of filtered rows while also allowing paging, is by using VirtualLoad paging.

Hope this helps.

A workaround if you would like to use classic paging would be to retrieve the filtered row count during InitializePostBack server side event handler and invoke javascript function to render the information. Here is the snippet, the client side snippet will try to render a new TD element in the WebGrid status bar:

//Server code
protected void wgTest_InitializePostBack(object sender, PostbackEventArgs e)
{
    switch (e.Action)
    {
        case "ColumnFilter":
            int filterCount = ((System.Data.DataTable)(wgTest.DataSource)).DefaultView.Count;
            wgTest.ClientAction.InvokeScript("RenderFilterCount", new FunctionParameter[] { new FunctionParameter(filterCount.ToString(), "string")}); 
            break;
    }
}

//Client side code
function RenderFilterCount(count)
{
    var grid = ISGetObject("wgTest");
    var customStat = document.getElementById("tdCustomStat_" + grid.Id);

    if (customStat)
    {
        customStat.getElementsByTagName("div")[0].innerHTML = "Filtered row: " + count;
    }
    else
    {
        var statBar = grid.GetElement(WG40.STATUSBAR, WG40.HTMLCELL);

        var filterCountDiv = document.createElement("div");
        filterCountDiv.innerHTML = "Filtered row: " + count;

        var filterCountDivCont = document.createElement("td");
        filterCountDivCont.setAttribute("id", "tdCustomStat_" + grid.Id);
        filterCountDivCont.setAttribute("noWrap", "nowrap");
        filterCountDivCont.appendChild(filterCountDiv);

        var sepElem = statBar.nextSibling;

        sepElem.parentNode.insertBefore(filterCountDivCont, sepElem);
        sepElem.parentNode.insertBefore(sepElem.cloneNode(true), filterCountDivCont);
    }  
}