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Chintoo Semi

Total Post:135

Posted on    November-13-2013 7:18 AM

 C# C# 

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I want to update the panel graphics (panel will contain simple shapes like circles and rectangles) every time a button is pressed. The code would look something like this:

private void PanelGraphics()


    ClearThePanel();  //empties the panel

    FillThePanel();   //draws new shapes in the panel


The function would be then called every time a button is pressed, and I understand button_events well enough so that's not a problem. However, I have no idea how to pull off the PanelGraphics() function, and a few links about panel_paint events didn't help me much.

ezra heywood
ezra heywood

Total Post:145

Posted on    November-13-2013 7:45 AM

Hi Chintoo,

You can draw to the panel by creating a graphics controller to it.

Graphics g = panel.CreateGraphics();

You can then use the Graphic class's plethora of methods to draw whatever you want to the panel





To clear the panel the easiest way is to draw a box the colour of the background to the panel

g.DrawRectangle(new Pen(panel.BackColor), new Rectangle(new Point(), panel.Size));

Modified On Apr-04-2016 11:16:11 PM

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