The best place for your question then is at http://forums.asp.net/.
The short answer though is to create a form with a textbox and a button, create a click event handler for the button and use the textbox.text as your queryString parameter. Use this sample code as the code within the click handler (instead of CreateCommand).
http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlcommand.executenonquery.aspx