/// <summary>
/// 得到一个对象实体
/// </summary>
public cn.itcast.bookshop.Model.Orders DataRowToModel(DataRow row)
{
cn.itcast.bookshop.Model.Orders model = new cn.itcast.bookshop.Model.Orders();
if (row != null)
{
if (row["OrderId"] != null)
{
model.OrderId = row["OrderId"].ToString();
}
if (row["OrderDate"] != null && row["OrderDate"].ToString() != "")
{
model.OrderDate = DateTime.Parse(row["OrderDate"].ToString());
}
if (row["UserId"] != null && row["UserId"].ToString() != "")
{
model.UserId = int.Parse(row["UserId"].ToString());
}
if (row["TotalPrice"] != null && row["TotalPrice"].ToString() != "")
{
model.TotalPrice = decimal.Parse(row["TotalPrice"].ToString());
}
if (row["PostAddress"] != null)
{
model.PostAddress = row["PostAddress"].ToString();
}
if (row["state"] != null && row["state"].ToString() != "")
{
model.state = int.Parse(row["state"].ToString());
}
}
return(model);
}
/// <summary>
/// 增加一条数据
/// </summary>
public bool Add(cn.itcast.bookshop.Model.Orders model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Orders(");
strSql.Append("OrderId,OrderDate,UserId,TotalPrice,PostAddress,state)");
strSql.Append(" values (");
strSql.Append("@OrderId,@OrderDate,@UserId,@TotalPrice,@PostAddress,@state)");
SqlParameter[] parameters =
{
new SqlParameter("@OrderId", SqlDbType.NVarChar, 50),
new SqlParameter("@OrderDate", SqlDbType.DateTime),
new SqlParameter("@UserId", SqlDbType.Int, 4),
new SqlParameter("@TotalPrice", SqlDbType.Decimal, 9),
new SqlParameter("@PostAddress", SqlDbType.NVarChar, 255),
new SqlParameter("@state", SqlDbType.Int, 4)
};
parameters[0].Value = model.OrderId;
parameters[1].Value = model.OrderDate;
parameters[2].Value = model.UserId;
parameters[3].Value = model.TotalPrice;
parameters[4].Value = model.PostAddress;
parameters[5].Value = model.state;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(cn.itcast.bookshop.Model.Orders model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Orders set ");
strSql.Append("OrderDate=@OrderDate,");
strSql.Append("UserId=@UserId,");
strSql.Append("TotalPrice=@TotalPrice,");
strSql.Append("PostAddress=@PostAddress,");
strSql.Append("state=@state");
strSql.Append(" where OrderId=@OrderId ");
SqlParameter[] parameters =
{
new SqlParameter("@OrderDate", SqlDbType.DateTime),
new SqlParameter("@UserId", SqlDbType.Int, 4),
new SqlParameter("@TotalPrice", SqlDbType.Decimal, 9),
new SqlParameter("@PostAddress", SqlDbType.NVarChar, 255),
new SqlParameter("@state", SqlDbType.Int, 4),
new SqlParameter("@OrderId", SqlDbType.NVarChar, 50)
};
parameters[0].Value = model.OrderDate;
parameters[1].Value = model.UserId;
parameters[2].Value = model.TotalPrice;
parameters[3].Value = model.PostAddress;
parameters[4].Value = model.state;
parameters[5].Value = model.OrderId;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public cn.itcast.bookshop.Model.Orders GetModel(string OrderId)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 OrderId,OrderDate,UserId,TotalPrice,PostAddress,state from Orders ");
strSql.Append(" where OrderId=@OrderId ");
SqlParameter[] parameters =
{
new SqlParameter("@OrderId", SqlDbType.NVarChar, 50)
};
parameters[0].Value = OrderId;
cn.itcast.bookshop.Model.Orders model = new cn.itcast.bookshop.Model.Orders();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}