With which tool can I collect the data while creating a chart on the form?

Question

I have a windows form that I designed. In this form, the user is trying to calculate by entering some data. eg population data by years. I need to create a graphic on the form according to this entered data. I use devexpress chartcontrol for this. however, the user cannot always fill all of these textboxes. In such a case I also get an error. how should i go?

Answer 1

That is up to you. You can use the events of the textbox (for example. textchange or leave). Make a submit button. Do what you think, your users expect.