static int FirstSxNum = 0;/*声明变量，初始化为0，用于判断筛选条件是否改变*/
/// <summary>
/// 获得专业信息的条数及页面信息
/// </summary>
/// <returns></returns>
public void GetAllSpenIntoCount()
{
string specname = txtSpecName.Value.Trim() == "按专业名模糊查找" ? "" : txtSpecName.Value.Trim();
if (specname != "按专业名模糊查找" && specname != "" && FirstSxNum == 0)
{
Pages = 1;
FirstSxNum = 1;
}
specialityList = TbSpecialityManager.GetAllSpecialityinfo(len, Pages, specname);
count = TbSpecialityManager.GetAllSpecialityinfo(specname).Rows.Count;
if (count % len == 0) //当数据库数据能整除len，最大页面数取Count/len的商
{
if (count > 0)
{
maxPage = count / len;
}
else
{
maxPage = 1;
}
}
else
{
maxPage = count / len + 1;//当数据库数据不能整除len，最大页面数取Count/len的商+1.
}
}
