Looking for solution to add double quotes in field which has commas in SSIS
You should be able to use SSIS CASE syntax in your derived column node as follows:

FINDSTRING(TextLine,",",1) &gt; 0 ? "\"" + TextLine + "\"" : TextLine


The expression basically says - if a comma is found in TextLine, THEN wrap it in double quotes ELSE just keep Textline