Grid problem - Ext JS

本文讨论了在使用 ExtJS 库时遇到的 GridView 显示错误及选择行为问题。主要表现为查询 TB_MOVIES 表时,尽管返回了 15 条记录但 GridView 中仅显示两条记录,并且点击任一行会触发错误。通过调整 ArrayReader 的配置解决了显示不全的问题,但仍存在点击行时的错误。
In my sample http://www.rodrigodiniz.qsh.eu/QueryAnaliser.aspx
You can see some very weird grid behavior ... if you run a select query against my TB_MOVIES...
you will see the grid with only two rows...and I am returning 15 !!!
If you do the same with TB_DOWNLOADS ..the result is correct.
And if I select any row in the grid it gives an error the error is at GridView.js
getLockedRow : function(index){
	    return this.getLockedTable().rows[index];
	}
__________________
ExtJsExtender Controls
http://www.extendersamples.qsh.eu
My Blog
http://rodiniz.blogspot.com
Reply With Quote
  #2  
Old 03-06-2007, 10:15 AM
Default

Jack?
no one?
__________________
ExtJsExtender Controls
http://www.extendersamples.qsh.eu
My Blog
http://rodiniz.blogspot.com
Reply With Quote
  #3  
Old 03-06-2007, 10:28 AM
Default

I am getting 15 results when i do
SELECT title FROM TB_MOVIE

Btw, nice idea
Reply With Quote
  #4  
Old 03-06-2007, 10:49 AM
DefaultI get 15 results in both ie and firefox - but get errors ...

I get 15 results - but I do get errors after it runs (but only when mouse enters the area). However if you click the Messages Tab - no error .. only when the Grid tab is selected. Error only happens after it runs one time. Most likely not related to your 2 row issue, but just a FYI and details. Firebug add-on is great if you are not running it. Good Luck and Nice Example.
Reply With Quote
  #5  
Old 03-06-2007, 08:35 PM
Default

What version are running rodrigo?
Reply With Quote
  #6  
Old 03-07-2007, 04:45 AM
Default

I am running alpha 2 rev 6. It would be a nice idea to put the version in the initial comments of the file
/*
 * Ext - JS Library 1.0 Alpha 2 Rev 6
 * Copyright(c) 2006-2007, Jack Slocum.
 * 
 * http://www.extjs.com/license.txt
 */
__________________
ExtJsExtender Controls
http://www.extendersamples.qsh.eu
My Blog
http://rodiniz.blogspot.com
Reply With Quote
  #7  
Old 03-07-2007, 05:05 AM
Default

The problem comes from:

reader: new Ext.data.ArrayReader({id: 0} <--- there

You are telling the reader that the id will come from the first item (index 0) in the array. Then if you look at your data you will see the value in the first array item repeats (e.g. "Animation"). Unless you have unique ids, I would suggest removing the id:0 config and let it auto-generate ids.

[['Action','89','8.0','Shrek','65889','2003'],
['Adventure','90','8.0','Indiana Jones and the Last Crusade' ,'62301','1989'],
['Action','91','8.0','To Have and Have Not','3997','1962'],
['Adventure','97','8.0','Stand

 by Me','31623','1986'],['Action','99','9.0','Qayamat se Qaymat Tak','24085','1978'],['Animation','102'

,'8.0','The Incredibles','30189','2004'],['Animation','103','8.0','Hotaru no haka','6839','1988'],['Animation'

,'104','8.0','Mononoke-hime','20250','1997'],['Animation','105','8.0','Tenku no shiro Rapyuta','4910'

,'1986'],['Animation','106','8.0','Tonari no Totoro','5203','1988'],['Animation','107','8.0','Toy Story

 2','41800','1999'],['Animation','108','8.0','Shrek','65889','2001'],['Animation','109','8.0','Sennen

 joyu','960','2001'],['Animation','110','8.0','Wallace and Gromit: The Best of Aardman Animation','1117'

,'1996'],['Animation','111','8.0','Hauru no ugoku shiro','859','2004']]
Reply With Quote
  #8  
Old 03-07-2007, 07:44 AM
Default

The problem of the number of rows returned is solved...
but the problem with selecting a grid row persists.
__________________
ExtJsExtender Controls
http://www.extendersamples.qsh.eu
My Blog
http://rodiniz.blogspot.com
Reply With Quote
【直流微电网】径向直流微电网的状态空间建模与线性化:一种耦合DC-DC变换器状态空间平均模型的方法 (Matlab代码实现)内容概要:本文介绍了径向直流微电网的状态空间建模与线性化方法,重点提出了一种基于耦合DC-DC变换器状态空间平均模型的建模策略。该方法通过对系统中多个相互耦合的DC-DC变换器进行统一建模,构建出整个微电网的集中状态空间模型,并在此基础上实施线性化处理,便于后续的小信号分析与稳定性研究。文中详细阐述了建模过程中的关键步骤,包括电路拓扑分析、状态变量选取、平均化处理以及雅可比矩阵的推导,最终通过Matlab代码实现模型仿真验证,展示了该方法在动态响应分析和控制器设计中的有效性。; 适合人群:具备电力电子、自动控制理论基础,熟悉Matlab/Simulink仿真工具,从事微电网、新能源系统建模与控制研究的研究生、科研人员及工程技术人员。; 使用场景及目标:①掌握直流微电网中多变换器系统的统一建模方法;②理解状态空间平均法在非线性电力电子系统中的应用;③实现系统线性化并用于稳定性分析与控制器设计;④通过Matlab代码复现和扩展模型,服务于科研仿真与教学实践。; 阅读建议:建议读者结合Matlab代码逐步理解建模流程,重点关注状态变量的选择与平均化处理的数学推导,同时可尝试修改系统参数或拓扑结构以加深对模型通用性和适应性的理解。
评论
成就一亿技术人!
拼手气红包6.0元
还能输入1000个字符
 
红包 添加红包
表情包 插入表情
 条评论被折叠 查看
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值