I have a need within an ASP.NET C# application to go through the .aspx files of my solution and pull out the
IDs of certain controls within the forms.  I already have code in place to bring back all the files and stream each file line by line.
I want to use RegEx for two purposes. 

1) To determine if the line contains any of the pre-determined control prefixes (e.g. "txt", "rdb", "ddl" etc.)
and if so
2) grab the value (between double quotes) of the ID attribute. 

A typical line that would pass the determination and that I would want to grab the value in the ID attribute looks like this:

<asp:TextBox ID="txtMyControlName" runat="server" Width="196px" MaxLength="150"></asp:TextBox>

In this case, the logic would have determined that this line is to be processed because it contains one of the desired control prefixes - "txt".
Next I would want to use RegEx to grab "txtMyControlName" from the ID attribute.

Thanks in advance for any help you can provide!

-- dwadek