来源: http://weblogs.asp.net/dennisthemenace/archive/2008/01/25/insertion-of-a-page-break-in-a-repeater.aspx

用法举例：

当我们用<%@page contentType=”application/vnd.ms-excel; charset=UTF-8″%>的方法导出网页文件为excel时，如果导出的数据中有数字以0开头，则该0会被省略，为了保留这个处于首位的0，可以在表格的style中加入：

style=’mso-number-format:”\@”;’

这样的话，导出的该表格中首位为0的数字就会将该0保留啦！

来源: http://blog.sina.com.cn/s/blog_5a010cd10100c3gs.html

insert into aaa
select 1
union
select 2
union
select 3

declare @sql varchar(8000)
set @sql=’select ‘
select  @sql=@sql+’max(case col when ”’+ col +”’ then col end) + ”,” + ‘
from (select distinct col from aaa)  a
set @sql=left(@sql,len(@sql)-1)

set @sql=@sql+’  from aaa’
–print @sql
exec(@sql)

drop table aaa

// Usually you wouldn’t cast an instance of an existing Enum to an int
// in order to create an Enum instance. :-) You would have the actual
// integer value, perhaps a value from a database where the int value of
// the enum was stored.

DayOfWeek wednesday =
(DayOfWeek)Enum.ToObject(typeof(DayOfWeek), (int)DayOfWeek.Wednesday);
DayOfWeek sunday =
(DayOfWeek)Enum.ToObject(typeof(DayOfWeek), (int)DayOfWeek.Sunday);
DayOfWeek tgif =
(DayOfWeek)Enum.ToObject(typeof(DayOfWeek), (int)DayOfWeek.Friday);

lblOutput.Text = wednesday.ToString()
+ “. Int value = ” + ((int)wednesday).ToString() + “\n”;
lblOutput.Text += sunday.ToString()
+ “. Int value = ” + ((int)sunday).ToString() + “\n”;
lblOutput.Text += tgif.ToString()
+ “. Int value = ” + ((int)tgif).ToString() + “\n”;
}

Result:

Wednesday. Int value = 3
Sunday. Int value = 0
Friday. Int value = 5

Link: http://www.cambiaresearch.com/c4/52a7e5fe-c7fc-49ab-b21d-37e6194687f3/Convert-Integer-To-Enum-Instance-in-csharp.aspx

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Test]
@=”Test”
“URL Protocol”=”应用程序路径 %l”

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Test\DefaultIcon]
@=”%SystemRoot%\\system32\\url.dll,0″

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Test\Shell]

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Test\Shell\open]

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Test\Shell\open\command]
@=”应用程序路径 %l”

注意: %1是百分号加上数字1

在网页上加一个这样的链接：
<a href=’Test://para1&para2&para3′>启动桌面应用程序</a>

如果用户点击这个网页链接，在注册表中对应的应用程序就可以被启动了。

来源: http://www.cnblogs.com/ilovejolly/archive/2007/06/25/794566.html

<meta http-equiv=”X-UA-Compatible” content=”IE=EmulateIE7″ />

只要IE8一读到这个标签,它就会自动启动IE7兼容模式,保证页面完整展示.

还有一种方法是针对整个网站的,在IIS中加入如下描述符就可以有相同的效果,当然这么做范围更广.

<?xml version=”1.0″ encoding=”utf-8″?>
<configuration>
<system.webServer>
<httpProtocol>
<customHeaders>
<add name=”X-UA-Compatible” value=”IE=EmulateIE7″>
</customHeaders>
</httpProtocol>
</system.webServer>
</configuration>

或者你还可以使用IIS admin tool来定义,更为简单.

IIS, IE8, 兼容

PS: 只是权宜之计, 还是尽快符合W3C标准为好.
来源: http://www.cnbeta.com/articles/63391.htm

写成通用的方法，获取某一日期是该年中的第几周

以前还在CSDN上遇到这样一个问题，就是计算某一年有多少周，同样可以用这个类的方法来解决

来源: http://www.cnblogs.com/lxcnn/archive/2007/08/10/850046.html

CLASS ViewWinForm
{

Private bool run;
Form oForm;

public ViewWinForm()
{
//构造函数
oForm=new Form();
oForm.FormClosed+=new ormClosedEventHandler(form_FormClosed);

}

public void view()
{
run = true;
form.Show();
while (run)
{
Application.DoEvents();
Thread.Sleep(1);
}
}

void form_FormClosed(object sender, FormClosedEventArgs e)
{
run = false;
}
}

SBO中显示模态窗体（如:对话框)
摘自https://www.sdn.sap.com/irj/sdn/thread?threadID=45710&tstart=0

After searching the forums for a way to reliably open an open file dialog I didn’t really find any examples showing what I needed. Anyway, here’s what I came up with.

There are two problems to deal with:

1. The dialog must be run on a separate thread.
2. The dialog must be modal for the CORRECT INSTANCE of the SAP client window.

With my item events I invoke the dialog with the following code example for an excel file. I was using the try/catch for debugging purposes.

I hope this helps someone out in the future.

GetFileNameClass oGetFileName = new GetFileNameClass();
oGetFileName.Filter = “Excel files (*.xls)|*.xls”;
oGetFileName.InitialDirectory =
Environment.GetFolderPath(Environment.SpecialFolder.Personal);
Thread threadGetExcelFile = new Thread(new ThreadStart(oGetFileName.GetFileName));
threadGetExcelFile.ApartmentState = ApartmentState.STA;
try
{
threadGetExcelFile.Start();
while (!threadGetExcelFile.IsAlive); // Wait for thread to get started
Thread.Sleep(1); // Wait a sec more
threadGetExcelFile.Join(); // Wait for thread to end

// Use file name as you will here
string strValue = oGetFileName.FileName;

}
catch(Exception ex)
{
_SBO_Application.MessageBox(ex.Message,1,”OK”,”",”");
}
threadGetExcelFile = null;
oGetFileName = null;

The following is my GetFileName class. More properties can be easily added like FileName, Filter, and InitialDirectory were. Change the namespace as appropriate.

using System;
using System.Diagnostics;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace MyNamespace
{
///
/// Wrapper for OpenFileDialog
///
public class GetFileNameClass
{
[DllImport( "user32.dll" )]
private static extern IntPtr GetForegroundWindow();

OpenFileDialog _oFileDialog;

// Properties
public string FileName
{
get { return _oFileDialog.FileName; }
set { _oFileDialog.FileName = value; }
}

public string Filter
{
get { return _oFileDialog.Filter; }
set { _oFileDialog.Filter = value; }
}

public string InitialDirectory
{
get { return _oFileDialog.InitialDirectory; }
set { _oFileDialog.InitialDirectory = value; }
}

// Constructor
public GetFileNameClass()
{
_oFileDialog = new OpenFileDialog();
}

// Methods

public void GetFileName()
{
IntPtr ptr = GetForegroundWindow();
WindowWrapper oWindow = new WindowWrapper(ptr);
if (_oFileDialog.ShowDialog(oWindow) != DialogResult.OK)
{
_oFileDialog.FileName = string.Empty;
}
oWindow = null;
} // End of GetFileName
}
}

Edit: Changed namespace to “MyNamespace”

Whoops, I forgot the window wrapper:

using System;

namespace MyNamespace
{
public class WindowWrapper : System.Windows.Forms.IWin32Window
{
private IntPtr _hwnd;

// Property
public virtual IntPtr Handle
{
get { return _hwnd; }
}

// Constructor
public WindowWrapper(IntPtr handle)
{
_hwnd = handle;
}
}
}

来源: http://www.cnblogs.com/el-net/articles/1036863.html