>>>>AppendFormat just adds to the end of a string. It allows you to "parameterize" content of the string. It has nothing to do with CR/LF.
>>>
>>>Fred,
>>>
>>>I read the help of AppendFormat function. My question was WHY I do not see some sort of visual indication that I have CRLF in the generated string in the Debugger.

Exactly where are you viewing this in the Debugger. The string in a watch window should show the relevant '\n' or '\r\n' sequence. And as mentioned in another post using the 'Text Visualizer' option will show the fomratted output. BTW, according to help '\n' is Unix new line and '\r\n' is non-Unix. Using Environment.NewLine should guarantee the correct sequence....