Pagination

public static string GetPagination(string pageName, string filterStr, int pageNumber, int pagesCount)
{
    if (filterStr=="&") // костыль
        filterStr="";
    else {}
    string
        paginationTemplate="<li{0}><a href=\""+pageName+"?page={1}"+filterStr+"\">{1}</a></li>\r\n",
        paginationList="",
        prevElem="",
        nextElem="",
        tmpClass;
    for (int i=1;i<=pagesCount;i++)
    {
        tmpClass="";
        if (i==pageNumber)
            tmpClass=" class=\"active\"";
        else {}
        paginationList+=string.Format(paginationTemplate,tmpClass,i.ToString());
    }
    if (pageNumber==1)
        prevElem=" class=\"disabled\" style=\"pointer-events:none;\"";
    else {}
    if (pageNumber==pagesCount)
        nextElem=" class=\"disabled\" style=\"pointer-events:none;\"";
    else {}
    prevElem=
        "<li"+prevElem+"><a href=\""+pageName+"?page=1\""+filterStr+">|&lt</a></li>\r\n"+
        "<li"+prevElem+"><a href=\""+pageName+"?page="+(pageNumber-1).ToString()+filterStr+"\">&lt;</a></li>\r\n";
    nextElem=
        "<li"+nextElem+"><a href=\""+pageName+"?page="+(pageNumber+1).ToString()+filterStr+"\">&gt;</a></li>\r\n"+
        "<li"+nextElem+"><a href=\""+pageName+"?page="+pagesCount.ToString()+filterStr+"\">&gt;|</a></li>\r\n";
    paginationList=
        "<ul class=\"pagination\" style=\"padding-left:20px;\">\r\n"+
        prevElem+
        paginationList+
        nextElem+
        "</ul>\r\n";
    return paginationList;
}