Problem about pictureBox in Visual Studio C Sharp.NET ?

Hi,


I am designing a paint brush type program…..for drawing area where I can draw something then I used pictureBox…..like as


Pen p = new Pen(Color.Red, 5);


g = pictureBox2.CreateGraphics();





g.DrawEllipse(p, e.X, e.Y, 5, 7);


in this program I can draw anything but when I want to save this drawing by the help of this command: pictureBox2.Image.Save(saveFileDialog1.F...





then an error occur : “NullReferenceExpection was unhandled !”


“Object reference not set to an instance of an object.”





I need your help………can anybody solve my problem


Thanks

Problem about pictureBox in Visual Studio C Sharp.NET ?
You need to make the graphics drawn on the PictureBox to be a persistent bitmap then only you can save the image.


Use a bitmap to draw the images upon and then reflect it upon your pictureboc. When you want to save just save the bitmap.





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