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>
/// 加载科目列表信息
/// </summary>
/// <param name="apge">当前页面</param>
public void Load_Student()
{
string Bj_Name = txtClassName.Value.Trim() == "按姓名，学号，班级，用户名模糊查询" ? "" : txtClassName.Value.Trim();
if (Bj_Name != "按姓名，学号，班级，用户名模糊查询" && Bj_Name != "" && FirstSxNum == 0)
{
page = 1;
FirstSxNum = 1;
}
studentList = TbStudentManager.GetAllStuInfo(len, page, Bj_Name);
Count = TbStudentManager.GetAllStuInfo(Bj_Name).Rows.Count;
if (Count == 0)
{
Maxapge = 1;
}
else
{
if (Count % len == 0) //当数据库数据能整除10，最大页面数取Count/len的商
{
Maxapge = Count / len;
}
else
{
Maxapge = Count / len + 1;//当数据库数据不能整除10，最大页面数取Count/len的商+1.
}
}
}
/// <summary>
/// 导出学生信息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void BtnExport_Click(object sender, EventArgs e)
{
string path = Server.MapPath("file") + "\\studentinfo.xls";
if (File.Exists(path))
{
File.Delete(path);
}
DataTable dt = TbStudentManager.GetAllStuInfo();
PublicClass.SaveToFile(PublicClass.GetTable(dt, "学员信息"), Server.MapPath("file") + "\\studentinfo.xls");
Response.Redirect("file/studentinfo.xls");
}