博客园_普若伽门的黑白

工厂模型代码（备份）

2010-09-06T10:21:00Z

2010-09-06T10:21:00Z2010-09-06T10:21:00Z普若伽门http://www.cnblogs.com/x116/

using System;
using System.Collections.Generic;

namespace Factory{
	public interface ExportFileApi{
		bool Export(string data);
	}
	
	public class ExportTxtFile : ExportFileApi{
		public bool Export(string data){
			Console.WriteLine("txt file:"+data);	
			return true;
		}	
	}	
	
	public class ExportDBFile : ExportFileApi{
		public bool Export(string data){
			Console.WriteLine("DB file:"+data);	
			return true;
		}	
	}
	
	public abstract class ExportOperate{
		public bool Export(string data){
			ExportFileApi api=FactoryMethod();
			return api.Export(data);
		}
		protected abstract ExportFileApi FactoryMethod();
	}
	
	public class ExportTxtOperate :ExportOperate{
		protected override ExportFileApi FactoryMethod(){
			return new ExportTxtFile();
		}
	}
	
	public class ExportDBOperate :ExportOperate{
		protected override ExportFileApi FactoryMethod(){
			return new ExportDBFile();
		}
	}	
	
	public class MyClass
	
	{
		public static void Main()
		{
			ExportOperate operate=new ExportDBOperate();
			operate.Export("测试数据");
			Console.ReadLine();				
		}	
	}
}

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快速排序JS代码

2010-09-06T04:04:00Z

网上转了一圈，看到各种变种的快排程序，却没有标准快排的示例代码，于是自己填了段，做记忆用方便以后查询。

function main(){
		var list=new Array(93,1,7,9,8,3,10,33,79,45,32,11,0,88,99,12,4,66,64,31,78,100);
		//list=quickSort(list);		
		document.write(sort(list).valueOf());
	}
	
	function sort(arr){
		return quickSort(arr,0,arr.length-1);
		function quickSort(arr,l,r){			
			if(l<r){			
				var mid=arr[parseInt((l+r)/2)],i=l-1,j=r+1;			
				while(true){
					while(arr[++i]<mid);
					while(arr[--j]>mid);				
					if(i>=j)break;
					var temp=arr[i];
					arr[i]=arr[j];
					arr[j]=temp;
				}		
				quickSort(arr,l,i-1);
				quickSort(arr,j+1,r);
			}
			return arr;
		}
	}

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JS模板引擎jTemplates 使用笔记（二）:Live Refresh!

2010-06-13T09:18:00Z

1. 功能简介

允许选择的元素进行自动更新；使用简单但功能强大。

2. 方法说明

Updater jQuery.fn.processTemplateStart(String url, Array param, Integer interval, [Array args], [Object options]);

void jQuery.fn.processTemplateStop();

参数详细介绍请参考官方文档jTemplates。

3. 简单示例

本示例使用MVC框架搭建

I:使用*.Aspx搭建展示内容页

<script src="<%=Url.Content("~/Scripts/jquery-jtemplates.js") %>" type="text/javascript"></script>
<script type="text/javascript" >
<!--
$(function() {
	var temp='<a href="#result" id="start">start</a>'
		+'<a href="#result" id="stop">stop</a>'
		+'<div id="infobox">-</div>';
	
	$("#result").setTemplateURL(temp);
	$("#result").processTemplate();

	//设置模板内容
	$("#infobox").setTemplate('{$T.Time}');

	var i = 0;
	$("#start").click(function() {
		$("#infobox")
		.processTemplateStart('<%=Url.Action("GetLiveData")%>',null,1000);
		
	});

	$("#stop").click(function() {
		$("#infobox").processTemplateStop();
	});
});
	
//-->
</script>
<div id="result"></div>

I:Controller 和 Model

Controller代码:

public ActionResult GetLiveData()
{
	return Json(new LiveModel
	           {
	            Time = DateTime.Now.ToString()
	           }, JsonRequestBehavior.AllowGet);
}

public ActionResult GetLiveTemplate()
{
	return PartialView("RefreshTemp");
}

public ActionResult LiveRefresh()
{
	return View();
}

Model代码:

public class LiveModel
{
	public string Time { get; set; }

}

4. 最终效果图

5. 小结和备注

目前在IE环境下,通过Ajax的Get同一个地址会从CACHE中获取。于是该示例中结果会保持不变。但在FF,chrome中均正常。

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JS模板引擎jTemplates 使用笔记（一）

2010-06-12T08:21:00Z

1 引擎简介

jTemplates是一个基于Jquery的js模板引擎插件。该引擎全部代码由JS实现，可以配合AJAX,JSON一起协同工作，模板内容可以用JS代码，实现了活动更新，可以自动从服务器更新模板生成的内容。
jTemplates能免费应用于商业和非商业。

2 下载引用

3 简单示例

本Demo使用MVC框架搭建。
I：使用*.ASCX搭建模板内容
主要代码

{#template MAIN}
 <div id="header">{$T.Name}</div>
 <table>
 {#foreach $T.Peoples as record}
  {#include ROW root=$T.record}
 {#/for}
 </table>
{#/template MAIN}

{#template ROW}
 <tr bgcolor="{#cycle values=['#AAAAEE','#CCCCFF']}">
  <td>{$T.FirstName.bold()}</td>
  <td>{$T.Age}</td>
  <td>{$T.Email.link('mailto:'+$T.Email)}</td>
 </tr>
{#/template ROW}

II: 使用*.Aspx搭建展示页面
主要代码

<script src="<%=Url.Content("~/Scripts/jquery-jtemplates.js")%>" 
 type="text/javascript"></script>

<script type="text/javascript">
$(document).ready(function () {		
    $.ajax({
	type:"POST",
	url: "<%= Url.Action("GetData") %>",
	data: "",
	contentType: "application/json; charset=utf-8",
	cache:false,
	dataType: "json",
	success: function(data){
		if(data){
			$("#jTemplateDemo").setTemplateURL("<%=Url.Action("GetTemplate")%>");						
			$("#jTemplateDemo").processTemplate(data);	
				
		}
	}
    });    
});
		
</script>

<div id="jTemplateDemo"></div>

III:Action和Model
Action主要代码

public ActionResult Index(string id)
{
	return View();
}
/// <summary>
/// Request for template content
/// </summary>
/// <returns>templates</returns>
public ActionResult GetTemplate()
{
	return PartialView("TableTemp");
}

/// <summary>
/// Request for temp data
/// </summary>
/// <returns>temp data</returns>
[HttpPost]
public ActionResult  GetData()
{
var model = new TempModel{
	Name = "New Employees",
	Peoples = new List{
		new Person {ID = "1", FirstName = "Anne", Email = "anne@domain.com",Age=20},
		new Person {ID = "2", FirstName = "Amelie", Email = "amelie@domain.com",Age=22},
		new Person {ID = "3", FirstName = "Polly", Email = "polly@domain.com",Age=35},
		new Person {ID = "4", FirstName = "Alice", Email = "alice@domain.com",Age=27},
		new Person {ID = "5", FirstName = "Martha", Email = "martha@domain.com",Age=32}
	}
};
	return Json(model);
}

Model主要代码

public class Person
{
	public string ID { get; set; }
	public string FirstName { get; set; }
	public string Email { get; set; }
	public int Age { get; set; }
}

public class TempModel
{
	public string Name { get; set; }
	public List<Person> Peoples { get; set; }

}

3 运行效果图

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[摘抄]NHibernate: Nullable DateTime Issues

2010-04-28T02:00:00Z

Url:http://ayende.com/Blog/archive/2007/03/26/NHibernate-Nullable-DateTime-Issues.aspx

System.DateTime is a value type in .Net, which means that it can never be null. But what happens when you have a nullable date time in the database, and you load it into a DateTime type?

Consider this simple example. Mapping:

Property:

public DateTime UpdatedDate
{
get { return m_dateTime; }
set { m_DateTime = value; }
}

When NHibernate loads a null value from the database, it cannot put a null in the UpdatedDate property, the CLR doesn't allow it. What happens is that the UpdatedDate property is set to the default DateTime value, in this case: 01/01/0001.

This can cause two major issues down the road. The first is that 01/01/0001 is not a valid date in SQL Server, so when you try to save the value, it will throw an exception. The second is that because of this issue, when NHibernate needs to track changes, it will check if null != 01/01/0001, and it will turn out that yes, this entity (which we never touched) has changed.

This can cause an extra update (and thus an exception) which can cause some fairly significant head scratching. The solution is simple, you need to let NHibernate know what to do with null values. This can be done by simply using a nullable type, such as:

public DateTime? UpdatedDate
{
get { return m_dateTime; }
set { m_DateTime = value; }
}

Or by using the Nullables.dll library for 1.1, and specifying the correct type in the mapping:

With this property:

public Nullables.NullableDateTime UpdatedDate
{
get { return m_dateTime; }
set { m_DateTime = value; }
}

Thanks for Sheraz Khan, for finding out and brining this to my attention, since then, I have run into the issue a couple of times, and I hope that if I blog about it, I will remember to match nullabilities.

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身份证号码的规则及验证原理

2009-08-06T02:28:00Z

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2009-05-18T03:00:00Z

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Jquery 对 radio取值，checkbox取值，select取值，radio选中，checkbox选中，select选中等的精简操作

2009-05-11T07:56:00Z

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2009-02-05T03:27:00Z

WEB应用程序的快捷键简单设计

2009-02-03T03:28:00Z

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