How to handle pages not rendering correctly after an Internet Information Services upgrade.

I’ve come across this error a couple of times in the past few weeks when migrating old ASP.NET websites to new web servers so I’m popping it into the blog as an aide-memoire for myself and in case it’s useful for others.

A Quick Code Snippet in VB.Net/ ASP.Net- Picks a random string from the set.

In an ASP.Net page you can easily get the username of the currently logged in user with Request.ServerVariables(“AUTH_USER”). With the following code snippet you can also get their real name (the “Display Name”) from the Active Directory.

When using an OnSelectedIndexChanged event on a drop down list in an ASP.NET page, the event code wasn’t getting executed.

I’ve recently had the need to write an ASP page which reads a SQL database and outputs into Microsoft Excel- a user clicks on a link to this ASP page and Excel opens up with a new spreadsheet of the data. This is how I did it