Encapsulate Graphing in a Class

Question

0.00/5 (No votes)

See more:

I wish to put all routines having to do with graphing in a class separate from the Form1 class. The graph is to be drawn on a panel located on the form. I have a test code that tries to do what I want but the paint event handler does not work right. Does anybody have a solution?

Posted 2-Jul-11 4:06am

Bob Magatagan

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2011-07-02T04:09:00

Solution 1

Make it into a UserControl: that way it can draw itself. Handle it's Paint event, and add a MyGraphControl to your form - it should all work fine.

Posted 2-Jul-11 4:09am

OriginalGriff

Comments

Bob Magatagan 2-Jul-11 10:34am

I thought about that but that makes it complex for the users to handle. I have a test program I wanted to attach to my question but I couldn't figure how to attach it. It shows what I have in mind.
Thanks for your quick response. I really appreciate it,
Bob

OriginalGriff 2-Jul-11 10:40am

Not really: a UserControl is just a class, but one you can add to the display programatically or via the Toolbox is VS.
Whatever you were going to do in a class, you can do in the control, but with the advantage that it draws itself (and thus encapsulates functionality better).

Bob Magatagan 6-Jul-11 18:08pm

But can you really draw the graphic on a panel in the form1 class that is not included in the user control. In my case, the graphic is a bitmap image. Sorry waited so long to respond; pressing engagtements, Bob

Sergey Alexandrovich Kryukov · Answer 2 · 2011-07-02T14:17:00

Solution 2

Please see my past solution: How do I clear a panel from old drawing[^].

Please ask me your follow-up questions. The problem is pretty simple.

—SA

Posted 2-Jul-11 14:17pm

Sergey Alexandrovich Kryukov

Updated 2-Jul-11 14:18pm

v2