Before and After

If you manually want to simulate a postback, Here is how you would stick together a string manually calling __doPostBack in .NET 1.1
In this case its making a link in a particular linkbutton control inside a datagrid.

__doPostBack in .NET 1.0

string link = "<a href=\"javascript:__doPostBack('dataGridCart$_ctl" + i + "$linkButton','');\"";

__doPostBack in .NET 2.0

string link = "<a href=\"javascript:__doPostBack('dataGridCart$ctl0" + i + "$linkButton','');\"";

Dont use this function any more.  Use Page.GetPostBackClientHyperlink from .NET 2.0+.  This is because they might change __doPostBack yet again and your code will be broken.

Look at the comment thread on this codeproject article for more details

Further reading: Do Postback Hijacking

Related Reading:

Head First Java, 2nd Edition

Starting Out with Java: From Control Structures through Objects (4th Edition)

Effective Java (2nd Edition)

This is quite an astonishing use of Google Trends.  Google realized that when people get sick they (obviously) search for flu related keywords and they managed to find a correlation to actual published flu infection statistics.  Quite amazing and this is definately a unique and interesting application of technology.

How we track flu trends (Google blog)
Here is an explanation of how it works

What other ideas can we apply this to?

Related Reading:

Head First Java, 2nd Edition

Starting Out with Java: From Control Structures through Objects (4th Edition)

Effective Java (2nd Edition)

In “Timing is Everything” I mentioned how I successfully managed to convince management to install ELMAH.  I wanted to add some comments as to how to easily get some values into ELMAH that you might have in your SESSION.

The easy way, with no code changes, is simply store those values in a COOKIE.

HttpCookie c = new HttpCookie("CUSTOMVAL");
c.Value = (string) Session["CUSTOMVAL"];
Response.Cookies.Add(c);

Viola! It will be in the ELMAH Error page!

Related Reading:

Head First Java, 2nd Edition

Starting Out with Java: From Control Structures through Objects (4th Edition)

Effective Java (2nd Edition)