/// <summary>
/// 下载课程的过程中比较费时的操作都在这个函数里面
/// </summary>
/// <param name="kkno">开课编号</param>
/// <param name="courseBriefcase">该堂课要存的briefcase</param>
private static void DownloadData(long kkno, Briefcase courseBriefcase)
{
Thread.Sleep(1000);//等待进度条窗口建立完毕
_waitform.Invoke(new MethodInvoker(() => _waitform.SetInfo("下载学生信息 \n 该过程可能会比较耗时")));
var fDataModule = new DataModule(); // 再新建一个datamodule.. 好浪费资源的说 反正C#会自己做内存回收...
var xktable = from c in fDataModule.GetxktableViewros() // 将选课表(学生信息)拿出来
where c.KKNO == kkno
select c;
_waitform.Invoke(new MethodInvoker(() => _waitform.SetInfo("下载学生信息 \n 该过程会耗时30秒左右"))); // 更改等待窗口的文字
var xkDatatable = EnumerableExtension.ListToDataTable(xktable.ToList(), "XKTABLE"); // 下载选课表
_waitform.Invoke(new MethodInvoker(() => _waitform.SetValue(20))); // 设置进度条 20
courseBriefcase.AddTable(xkDatatable); // 将选课表加到briefcase中
courseBriefcase.WriteBriefcase(); // 写入硬盘
var sktable = from c in fDataModule.GetSktable07Viewro() where c.KKNO == kkno select c; // 拉取上课表
var dmtable = from c in fDataModule.GetdmTable() where c.KKNO == kkno select c; //拉取选课表
_waitform.Invoke(new MethodInvoker(() => _waitform.SetInfo("下载课程信息 \n 该过程不会消耗太长时间")));
_waitform.Invoke(new MethodInvoker(() => _waitform.SetValue(50)));
var sktableList = sktable.ToList(); // 下载上课表
var skdatatable = EnumerableExtension.ListToDataTable(sktableList, "SKTABLE"); //将上课表转换成datatable
courseBriefcase.AddTable(skdatatable); // 将datatable写入briefcase中
courseBriefcase.WriteBriefcase(); // 写入硬盘
_waitform.Invoke(new MethodInvoker(() => _waitform.SetInfo("下载考勤信息 \n 该过程不会消耗太长时间")));
var dmtableList = dmtable.ToList(); // 下载点名表
foreach (var sktable07Viewro in sktable)
{
var viewro = sktable07Viewro; // resharper说一定要这么写
var dmtablesinglelist = from c in dmtableList where c.SKNO == viewro.SKNO select c;
var dmtableSingleDatatable = EnumerableExtension.ListToDataTable(dmtablesinglelist.ToList(),
sktable07Viewro.SKNO.ToString(CultureInfo.InvariantCulture)); // 将list转换成datatable
courseBriefcase.AddTable(dmtableSingleDatatable);
_waitform.Invoke(new MethodInvoker(() => _waitform.Increase(1))); // 每次下载都在进度条上加1
}
courseBriefcase.WriteBriefcase(); // 保存将对briefcase的更改写入硬盘
var classInfoTable = courseBriefcase.FindTable("ClassInfo");
//以下注释的代码作为参考用.
//courseInfoTable.Columns.Add ("上课编号", typeof (string));
//courseInfoTable.Columns.Add ("上课日期", typeof (string));
//courseInfoTable.Columns.Add ("上课状态", typeof (string));
foreach (var sktable07Viewro in sktableList)
{
var viewro = sktable07Viewro; //resharper说要这么写
var classInfoRow = classInfoTable.NewRow(); //新建一行
classInfoRow["上课编号"] = viewro.SKNO.ToString(CultureInfo.InvariantCulture); //指定这一行的上课编号
classInfoRow["上课日期"] = viewro.YDSKDATE.ToString(); //指定这一行的上课日期
if (viewro.SKZT == 0) //将上课状态转换成文字
{
classInfoRow["上课状态"] = "未签到";
}
else
{
classInfoRow["上课状态"] = "已签到";
}
classInfoTable.Rows.Add(classInfoRow);//将这一行加到datatable里
}
courseBriefcase.AddTable(classInfoTable);//将datatable加到briefcase里
courseBriefcase.WriteBriefcase();
_waitform.Invoke(new MethodInvoker(() => _waitform.Close())); //关闭进度窗口
}
