/// <summary>
/// 更新一条数据(所有字段)
/// </summary>
public int Update(DBHelper myHelperMySQL, Fm.Entity.orderlist model, string strWhere)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update orderlist set ");
strSql.Append(" OrderId = @OrderId , ");
strSql.Append(" ProductId = @ProductId , ");
strSql.Append(" ProductName = @ProductName , ");
strSql.Append(" Num = @Num , ");
strSql.Append(" ProductPrice = @ProductPrice , ");
strSql.Append(" ProductImage = @ProductImage ");
MySqlParameter[] parameters =
{
new MySqlParameter("@OrderId", model.OrderId),
new MySqlParameter("@ProductId", model.ProductId),
new MySqlParameter("@ProductName", model.ProductName),
new MySqlParameter("@Num", model.Num),
new MySqlParameter("@ProductPrice", model.ProductPrice),
new MySqlParameter("@ProductImage", model.ProductImage)
};
if (strWhere.Trim() != "")
{
strSql.Append(" where " + strWhere);
}
int rows = myHelperMySQL.ExecuteNonQuery(strSql.ToString(), parameters);
return(rows);
}
public void ADD(Fm.Entity.orderlist model)
{
DBHelper myHelperMySQL = new DBHelper();
myHelperMySQL.connectionStr = MySQLConfig.ConnStringCenter;
dal.Add(myHelperMySQL, model);
}
/// <summary>
/// 得到一个对象实体(List类型)，数据连接类用myHelperMySQL（非静态）,查询全部数据
/// 表：MessageBoard
/// <param name="myHelperMySQL">myHelperMySQL实例（数据访问类）.</param>
/// <param name="Top">记录数.</param>
/// <param name="strWhere">条件.</param>
/// <param name="filedOrder">排序字段.</param>
/// <param name="parameters">参数(若条件中未使用参数可为null).</param>
/// </summary>
public List <Fm.Entity.orderlist> GetList(DBHelper myHelperMySQL, int Top, string strWhere, string filedOrder, MySqlParameter[] parameters)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select ");
strSql.Append(" a.OrderId, a.ProductId, a.ProductName, a.Num, a.ProductPrice, a.ProductImage ");
strSql.Append(" FROM orderlist a ");
if (strWhere.Trim() != "")
{
strSql.Append(" WHERE " + strWhere);
}
if (filedOrder.Trim() != "")
{
strSql.Append(" ORDER BY " + filedOrder);
}
if (Top > 0)
{
strSql.Append(" limit " + Top.ToString());
}
List <Fm.Entity.orderlist> myList = new List <Fm.Entity.orderlist>();
using (MySqlDataReader dr = myHelperMySQL.ExecuteReader(strSql.ToString(), parameters))
{
while (dr.Read())
{
Fm.Entity.orderlist model = new Fm.Entity.orderlist();
model.OrderId = dr["OrderId"].ToString();
model.ProductId = dr["ProductId"].ToString();
model.ProductName = dr["ProductName"].ToString();
if (dr["Num"].ToString() != "")
{
model.Num = int.Parse(dr["Num"].ToString());
}
if (dr["ProductPrice"].ToString() != "")
{
model.ProductPrice = decimal.Parse(dr["ProductPrice"].ToString());
}
model.ProductImage = dr["ProductImage"].ToString();
myList.Add(model);
}
dr.Close();
}
return(myList);
}
/// <summary>
/// 增加一条数据
/// </summary>
public void Add(DBHelper myHelperMySQL, Fm.Entity.orderlist model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into orderlist(");
strSql.Append("OrderId,ProductId,ProductName,Num,ProductPrice,ProductImage");
strSql.Append(") values (");
strSql.Append("@OrderId,@ProductId,@ProductName,@Num,@ProductPrice,@ProductImage");
strSql.Append(") ");
MySqlParameter[] parameters =
{
new MySqlParameter("@OrderId", model.OrderId),
new MySqlParameter("@ProductId", model.ProductId),
new MySqlParameter("@ProductName", model.ProductName),
new MySqlParameter("@Num", model.Num),
new MySqlParameter("@ProductPrice", model.ProductPrice),
new MySqlParameter("@ProductImage", model.ProductImage)
};
myHelperMySQL.ExecuteNonQuery(strSql.ToString(), parameters);
}
