using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;

namespace?StudentScore.ShanXi10.Bll
{
????using?StudentScore.ShanXi10.Model;
????using?StudentScore.ShanXi10.Dal;
?????public?class?ClassBll
????{
?????????ClassDal?dal?=?new?ClassDal（）;

?????????#region?新增
?????????///?

?????????///?新增
?????????///?

?????????///?
?????????///?
?????????public?int?Add（Class?model）
?????????{
?????????????return?dal.Add（model）;
?????????}?
?????????#endregion

?????????#region?根據(jù)班級(jí)編號(hào)刪除數(shù)據(jù)
?????????///?

?????????///?根據(jù)班級(jí)編號(hào)刪除數(shù)據(jù)
?????????///?

?????????///?
?????????///?是否刪除成功
?????????public?bool?Delete（int?classId）
?????????{
?????????????//1.0先刪除成績
?????????????StudentBll?bllStudent?=?new?StudentBll（）;
?????????????List?listStudent=bllStudent.GetList（
?????????????????where:?“ClassId=“+classId
?????????????????fields:?“StudentId“
?????????????????）;
?????????????//非空判斷
?????????????if?（listStudent?!=?null?&&?listStudent.Count?>?0）
?????????????{
?????????????????string?strStudentIds?=?string.Empty;//學(xué)生編號(hào)?以分隔
?????????????????foreach（Student?stu?in?listStudent）
?????????????????{
?????????????????????strStudentIds?+=?stu.StudentId?+?““;
?????????????????}
?????????????????strStudentIds?=?strStudentIds.TrimEnd（new?char[]?{?‘‘?}）;//去除尾部的?
?????????????????ResultBll?bllResult?=?new?ResultBll（）;
?????????????????bllStudent.Delete（“StudentId?in（“?+?strStudentIds?+?“）“）;

?????????????}
?????????????//2.0再刪除學(xué)生
?????????????bllStudent.Delete（“ClassId=“?+?classId）;//不需要判斷返回值，為什么？因?yàn)榭赡懿淮嬖谠摪嗉?jí)的學(xué)生


?????????????//3.0最后刪除班級(jí)


?????????????int?count?=?dal.Delete（classId）;
?????????????if（count>0）//受影響的行數(shù)
?????????????{
?????????????????return?true;
?????????????}
?????????????return?false;
?????????}
?????????#endregion

?????????#region?根據(jù)條件刪除班級(jí)
?????????///?

?????????///?根據(jù)條件刪除班級(jí)
?????????///?

?????????///?
?????????///?是否刪除成功
?????????public?bool?Delete（string?where）
?????????{
?????????????int?count?=?dal.Delete（where）;
?????????????if（count>0）
?????????????{
?????????????????return?true;
?????????????}
?????????????return?false;
?????????}
?????????#endregion

?????????#region?修改
?????????///?

?????????///?修改
?????????///?

?????????///?
?????????///?是否刪除成功
?????????public?bool?Update（Class?model）
?????????{
????????????int?count?=dal.Update（model）;
?????????????if（count>0）
?????????????{
?????????????????return?true;
?????????????}
?????????????return?false;
?????????}
?????????#endregion

?????????#region?獲取班級(jí)集合
?????????///?

?????????///??獲取班級(jí)集合
?????????///?

?????????///?
?????????///?<

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????9216??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Debug\StudentScore.Shanxi10.Bll.dll

?????文件??????34304??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Debug\StudentScore.Shanxi10.Bll.pdb

?????文件???????5632??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Debug\StudentScore.Shanxi10.Common.dll

?????文件??????13824??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Debug\StudentScore.Shanxi10.Common.pdb

?????文件??????22016??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Debug\StudentScore.Shanxi10.Dal.dll

?????文件??????50688??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Debug\StudentScore.Shanxi10.Dal.pdb

?????文件???????7680??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Debug\StudentScore.Shanxi10.Model.dll

?????文件??????34304??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Debug\StudentScore.Shanxi10.Model.pdb

?????文件???????8192??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Release\StudentScore.Shanxi10.Bll.dll

?????文件??????30208??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Release\StudentScore.Shanxi10.Bll.pdb

?????文件???????5632??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Release\StudentScore.Shanxi10.Common.dll

?????文件??????13824??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Release\StudentScore.Shanxi10.Common.pdb

?????文件??????20480??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Release\StudentScore.Shanxi10.Dal.dll

?????文件??????44544??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Release\StudentScore.Shanxi10.Dal.pdb

?????文件???????7168??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Release\StudentScore.Shanxi10.Model.dll

?????文件??????32256??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\bin\Release\StudentScore.Shanxi10.Model.pdb

?????文件???????4887??2016-11-27?10:14??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\ClassBll.cs

?????文件???????6708??2016-10-28?17:49??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件???????4001??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Debug\StudentScore.ShanXi10.Bll.csproj.FileListAbsolute.txt

?????文件??????12488??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Debug\StudentScore.ShanXi10.Bll.csprojResolveAssemblyReference.cache

?????文件???????9216??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Debug\StudentScore.Shanxi10.Bll.dll

?????文件??????34304??2018-04-03?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Debug\StudentScore.Shanxi10.Bll.pdb

?????文件???????6716??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Release\DesignTimeResolveAssemblyReferencesInput.cache

?????文件???????1319??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Release\StudentScore.ShanXi10.Bll.csproj.FileListAbsolute.txt

?????文件??????12500??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Release\StudentScore.ShanXi10.Bll.csprojResolveAssemblyReference.cache

?????文件???????8192??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Release\StudentScore.Shanxi10.Bll.dll

?????文件??????30208??2016-11-27?13:23??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\obj\Release\StudentScore.Shanxi10.Bll.pdb

?????文件???????1374??2016-10-21?13:49??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\Properties\AssemblyInfo.cs

?????文件???????4252??2016-11-27?12:24??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\ResultBll.cs

?????文件???????4582??2016-11-26?16:05??StudentScore.ShanXi10\StudentScore.ShanXi10.Bll\StudentBll.cs

............此處省略219個(gè)文件信息