ASP.NET: Programatically Change Page Headers (Title, Stylesheets, Meta)

Private Sub Page_Load()
' Change the title
Page.Header.Title = "My Content Page Title"

' Change the background color
Dim myStyle As New Style()
myStyle.BackColor = System.Drawing.Color.Red
Page.Header.StyleSheet.CreateStyleRule(myStyle, Nothing, "html")

' Create Meta Description
Dim metaDesc As New HtmlMeta()
metaDesc.Name = "DESCRIPTION"
metaDesc.Content = "Content Page Meta Description"

' Create Meta Keywords
Dim metaKeywords As New HtmlMeta()
metaKeywords.Name = "KEYWORDS"
metaKeywords.Content = "Content Page Meta Keywords"

' Add Meta controls to HtmlHead
Dim head As HtmlHead = DirectCast(Page.Header, HtmlHead)
head.Controls.Add(metaDesc)
head.Controls.Add(metaKeywords)
End Sub

This can also be used to override MasterPage setting :)