/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(university.Model.CCOM.Student model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Student set ");
strSql.Append("User_id=@User_id,");
strSql.Append("Period_id=@Period_id");
strSql.Append(" where Student_id=@Student_id");
SqlParameter[] parameters =
{
new SqlParameter("@User_id", SqlDbType.BigInt, 8),
new SqlParameter("@Period_id", SqlDbType.Int, 4),
new SqlParameter("@Student_id", SqlDbType.BigInt, 8)
};
parameters[0].Value = model.User_id;
parameters[1].Value = model.Period_id;
parameters[2].Value = model.Student_id;
int rows = DBSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public long Add(university.Model.CCOM.Student model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Student(");
strSql.Append("User_id,Period_id)");
strSql.Append(" values (");
strSql.Append("@User_id,@Period_id)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@User_id", SqlDbType.BigInt, 8),
new SqlParameter("@Period_id", SqlDbType.Int, 4)
};
parameters[0].Value = model.User_id;
parameters[1].Value = model.Period_id;
object obj = DBSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt64(obj));
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public university.Model.CCOM.Student DataRowToModel(DataRow row)
{
university.Model.CCOM.Student model = new university.Model.CCOM.Student();
if (row != null)
{
if (row["Student_id"] != null && row["Student_id"].ToString() != "")
{
model.Student_id = long.Parse(row["Student_id"].ToString());
}
if (row["User_id"] != null && row["User_id"].ToString() != "")
{
model.User_id = long.Parse(row["User_id"].ToString());
}
if (row["Period_id"] != null && row["Period_id"].ToString() != "")
{
model.Period_id = int.Parse(row["Period_id"].ToString());
}
}
return(model);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public university.Model.CCOM.Student GetModel(long Student_id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 Student_id,User_id,Period_id from Student ");
strSql.Append(" where Student_id=@Student_id");
SqlParameter[] parameters =
{
new SqlParameter("@Student_id", SqlDbType.BigInt)
};
parameters[0].Value = Student_id;
university.Model.CCOM.Student model = new university.Model.CCOM.Student();
DataSet ds = DBSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}