hello, i want to create an application which reads the given table and allows user to select columns and then recreating a table with the selected columns.
I am working on forecasting electricity prices and getting data from https://www.epias.com.tr/en/ my code is working on a fixed table template and that is date-hour-price. But some excel files have more than one currency and the table can be date-hour-turkish lira-usd-cad. i want user to be able to choose currency and work on it. reads table and user selects columns (date-hour-try/usd/cad) and creates new table consisted selected columns. My code is https://pastebin.com/UpSYsQrQ. Reading table and formatting is done but. selection callback and confirm push button callbacks are not working properly. it creates a table but table is irrelevant. it's like i can't keep the read data and create an empty one.