c# - "Items collection cannot be modified when the DataSource property is set." -


having issue program adds files through form txt file issue doesn't fstream i'm thinking doesn't have deal i'm not sure problem means.

lstemployees.items.add("no records found.");

the error message tells have set "datasource property" on "lstemployees". go "lstemployees" properties , remove datasource - or if want keep datasource, don´t try add "your own" items "lstemployees", won´t accepted.


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