DataTable dtnew=...;
DataRow[] drpic = dtnew.Select("字段1 is not null and 字段1 <> ''", "字段2desc");
if (drpic != null && drpic.Length != 0)//新闻图片
{
if (dtnew.Rows.Count > 0)
{
picPath = drpic[0]["pictrueName"].ToString();//默认显示当天的第一个
Path = picFloder + picPath;
picTitle = drpic[0]["Title"].ToString();
}
}