How to draw graphs from textboxes and labels

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Dear Codeproject members
i'm working on a project where i need to draw graphs from data of textboxes

i have 12 text boxes and 12 label
i need to draw twelve graphs that contain the data from one texboxe and label at same time , the data are changing each 50 ms , the whole number of data is in between 3000 and 4000.

i hope you'll help me.

thank you

best regards

Posted 3-Jun-11 11:04am

Dzmoumou

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-06-03T18:28:00

Do not use control! (Possible, but so many projects were failed due to this wrong approach).
Do not use PictireBox. You can do it, but there is no need; no useful functionality from this control. You need to use a custom control, or a panel, even a form.
Here is how (see my solution):
How do I clear a panel from old drawing[^].

Alternative: use WPF. Everything you need it already fully implemented there plus a lot more.

—SA

Ruard · Accepted Answer · 2011-06-03T13:50:00

Solution 1

In order to draw you should use a PictureBox. Use the PictureBox Paint event to draw the graphics. After data is changed or on timer_tick you can force a redraw as follows: PictureBox.Invalidate();

Set Form.DoubleBuffered to true to prevent flickering.

Posted 3-Jun-11 13:50pm

Ruard

Comments

Dzmoumou 3-Jun-11 19:54pm

thank you

thatraja 3-Jun-11 23:46pm

Spot on. 5!