Tutorial 200 explains how to store details of rectangles drawn on a chart in a CSV file using a StreamWriter. When new rectangles are drawn, the program recognizes the fact and adds them to the CSV file.
See more details here: https://markplex.com/free-tutorials/tutorial-200-saving-rectangle-information-in-csv-files/
See more details here: https://markplex.com/free-tutorials/tutorial-200-saving-rectangle-information-in-csv-files/
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