Here is a brief summary how we can send a text message to webpage by a web user control. Delegates is the slolution. There are many good articles on .net delegates you can refer some of them below. The scenario is we want to send a text message to the page on completion of some activity on webcontrol. 1/ Create a Base class for webcontrol (refer code below), assuming we are passing some text messages to page from web user control, and later inherit your web user control by this class. - Declare a...