Solved! Go to Solution.
Hi Dan,
Thank you for the excellent suggestions. Your suggestions helped me to work backwards and see one by one why the data source was containing no data. I had an old backup and loaded the old backup of the data source into the map and presto, the map displayed displayed beautifully. Finally the data source became available once again. From what I learnt from the experience was that the links to the data file had been broken when I first installed it onto a new computer, hence I could not find the columns that were there before. Also I copied the data source onto the new computer on a different drive and then tried to access the data source from there changing the path to the Data Source and it worked like a charm!
Thank you so much for the suggestions that took me into the right direction and helped resolve the issue.
I appreciate each and everyone in this community.