Help with Tablet View Sum

Hi Team. I need some help with my project.I would like to get the sum from column 5 of the table view

I'm a beginner so if anyone can help with pazl it would be great

Do the sum from your list before you create your datastring, then add your sum row to the datastring.

the table is dynamic and new lines are added every 5-10 minutes. i don't know how i could do what you are telling me.

Well, you have to refresh the tableview with new data, so recalculate the sum before doing that.

could you maybe help me with this if you have time because i don't understand very well

an example using Tableviewer (which I would recommend)