public int UpdateSubject_Type(Subject_TypeEntity t_Subject_Type)
{
OleDbParameter[] p=new OleDbParameter[]{
new OleDbParameter("@Subject_type_id",t_Subject_Type.Subject_type_id),
new OleDbParameter("@Subject_type_name",t_Subject_Type.Subject_type_name)
};
int i=OLEDBHelp.GetExecute("update Subject_Type set subject_type_id=@Subject_type_id,subject_type_name=@Subject_type_name where subject_type_id=@Subject_type_id", p) ;
return i;
}
//根据外键进行查询
//插入操作
public int InsertSubject_Type(Subject_TypeEntity t_Subject_Type)
{
//定义插入数据的参数数组
OleDbParameter[] p=new OleDbParameter[]{
new OleDbParameter("@Subject_type_id",t_Subject_Type.Subject_type_id),
new OleDbParameter("@Subject_type_name",t_Subject_Type.Subject_type_name)
};
int i=OLEDBHelp.GetExecute("insert into Subject_Type values (@Subject_type_id,@Subject_type_name)", p) ;
return i;
}
//根据外键进行查询
//插入操作
public static int InsertSubject_Type(Subject_TypeEntity t_Subject_Type)
{
int i=-1;
//定义插入数据的参数数组
try
{
i=dal.InsertSubject_Type(t_Subject_Type);
}
catch(Exception ex)
{
throw new Exception(ex.Message);
}
return i;
}
public Subject_TypeEntity SelectSubject_TypeByID(int t_subject_type_id)
{
Subject_TypeEntity t_Subject_Type= new Subject_TypeEntity();
OleDbDataReader sdr=null;
using(sdr=OLEDBHelp.GetReader("select * from Subject_Type where subject_type_id="+t_subject_type_id))
{
if(sdr.Read())
{
t_Subject_Type.Subject_type_id=(int)sdr.GetValue(0);
t_Subject_Type.Subject_type_name=(string)sdr.GetValue(1);
}
}
sdr.Close();
return t_Subject_Type;
}
//根据主键查询整个表
public IList<Subject_TypeEntity> GetAllSubject_Type()
{
IList<Subject_TypeEntity> t_Subject_Types = new List<Subject_TypeEntity>();
OleDbDataReader sdr = null;
using(sdr=OLEDBHelp.GetReader("select * from Subject_Type"))
{
while(sdr.Read())
{
Subject_TypeEntity t_Subject_Type= new Subject_TypeEntity();
t_Subject_Type.Subject_type_id=(int)sdr.GetValue(0);
t_Subject_Type.Subject_type_name=(string)sdr.GetValue(1);
t_Subject_Types.Add(t_Subject_Type);
}
sdr.Close();
}
return t_Subject_Types;
}
