thank you for your answer,
I'am using it to save file names entered by the user as key, and related informations to those files as value. The file names are 1,2,3,4...,300.. and if the user wants to add a new file it's most likely going to be the last added file +1, so in this case 301. So my objective is to remind the user of his last added file. For this I'am using;
Qt Code: 
  1. QMap<QString, <T> >
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I'am open to any suggestions.

Thanks.