I'm having trouble feeding the results of a calculation from one form, into another form, where the data will be plotted in a graph. At the moment, the user must save the data in a data file, then load it again into the graph-plotting programme. This event is very slow. The user is required to specify the number of columns of data in the file - but the number of columns is not fixed and changes frequently. I would like to offer the user a menu-option to "Plot graph", whereupon the calculated data in columns will be fed directly into the the graph plotting programme. I've found this to be a challenge!
Can anyone help me to do this?
Also, how does one define the "Select All" command in the Edit menu?