I'm working on a URL rewriting engine at the moment and would like to
make it more dynamic. I am doing this via Global.asax and as of now I
have to manually write the URL's one-by-one. I am wanting to use a RegEx
on a string and then access the dynamic page this way. For example:

Let's say that the static URL I implement is:

Wonkas_widgets_factory_Tonka_Truck_002.aspx

I would want this to point to:

product.aspx?productID=002

To accomplish this I would simply need to use the RegEx:
\d{3}

Now let's say that I have the following code in Application_BeginReguest
(Global.asax):

Sub Application_BeginRequest(ByVal sender as Object, ByVal e as
EventArgs)

Dim httpContext As System.Web.HttpContext = httpContext.Current
Dim currentURL As String = Request.Path.ToLower()

If currentURL.IndexOf("Willy_Wonkas_widget_factory_001") > 0 Then
httpContext.RewritePath("product.aspx?productID=001")

End Sub

What would be the best way to implement this RegEx so that I can create
many static URL's?

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I'm sure I can help with regular expressions, but I don't understand
what you're asking.

Sorry,

I couldn't figured this out earlier. I should've posted a reply to
myself.

Sub Application_BeginRequest(ByVal sender as Object, ByVal e as
EventArgs)

Dim httpContext As System.Web.HttpContext = httpContext.Current
Dim currentURL As String = Request.Path.ToLower()

Dim strPattern As String = "page(\d+).aspx"

Dim objRegEx As Regex
Dim Matches As MatchCollection
Dim pageID As string
objRegEx = New Regex(strPattern, RegexOptions.IgnorePatternWhitespace)
Matches = objRegEx.Matches(currentURL)

If Matches.Count > 0 Then
    pageID = Matches(0).Groups(1).ToString()
    httpContext.RewritePath("product.aspx?productID=" & pageID)
Else
    httpContext.RewritePath(currentURL)
End If

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