/// <summary>
/// 查看成绩列表：返回所有的成绩
/// </summary>
/// <returns></returns>
public List <Grade> ShowMessageList()
{
try
{
return(GradeAccess.SelectGrade());
}
catch (Exception ex)
{
return(null);
}
}
/// <summary>
/// 数据插入
/// </summary>
/// <param name="emp"></param>
/// <returns></returns>
public Boolean AddGrade(Grade grade)
{
try
{
return(GradeAccess.InsertGrade(grade));
}
catch (Exception ex)
{
return(false);
}
}
/// <summary>
/// 查看列表
/// </summary>
/// <returns></returns>
public List <Grade> ShowGradeList(string gradeSno)
{
try
{
string sqlWhere = string.Format(" and gradeSno='{0}' ", gradeSno);
List <Grade> list = GradeAccess.SelectSingleGrade(sqlWhere);
if (list != null && list.Count > 0)
{
return(list);
}
return(null);
}
catch (Exception ex)
{
return(null);
}
}