@helper SignInCalender(DateTime argDate)
{
    DateTime vFirstDay = new DateTime(argDate.Year, argDate.Month, 1);
    int vLastday = argDate.AddMonths(1).AddDays(-1).Day;//获取当月的最后一天
    int vWeek = (int)vFirstDay.DayOfWeek;//获取当年当月1号的星期

    int vMaxCells = 28;//页面上最多显示的单元格数
    int vPrdictDays = vLastday + vWeek;
    if (vPrdictDays > 35)
    {
        vMaxCells = 42;
    }
    else if (vPrdictDays > 28)
    {
        vMaxCells = 35;
    }
   
    System.Web.Mvc.TagBuilder tagTable = new System.Web.Mvc.TagBuilder("table");
    tagTable.InnerHtml = "<tr><td>日</td><td>一</td><td>二</td><td>三</td><td>四</td><td>五</td><td>六</td></tr>";
   
    int vDay = 1;
    System.Web.Mvc.TagBuilder tagFirsTR = new System.Web.Mvc.TagBuilder("tr");
    for (int j = 0; j < vMaxCells; j++)
    {
        System.Web.Mvc.TagBuilder tagTd = new System.Web.Mvc.TagBuilder("td");
        string vDays = string.Empty;

        if (j >= vWeek && vDay <= vLastday)
        {
            vDays = vDay.ToString();
            vDay++; 
        }
       
        tagTd.SetInnerText(vDays);

        tagFirsTR.InnerHtml += tagTd.ToString();
        if ((j+1) % 7 == 0)
        {
            tagTable.InnerHtml += tagFirsTR.ToString();
            tagFirsTR.InnerHtml = string.Empty;
        }
    }

    @System.Web.Mvc.MvcHtmlString.Create(tagTable.ToString());
}

在页面上打印日历