Thanks for explaining this. I was thinking that since I was disposing of the Picbox control, that the Image property would be cleared also. I have added this code to dispose of the Images. I have received no memory errors since.

foreach 

(Infragistics.Win.UltraWinEditors.UltraPictureBox pb in  pnlPicBox.Controls)

{

Image i = (Image)pb.Image;

if (i != null)

{i.Dispose();}

Thanks again.

Well, it's a bit hard to read this code, but unless I am missing it, I don't see anything here that would dispose the images. You are just disposing the UltraPictureBox controls. But the control can't assume that the image you provided is not being used by anything else, so it can't dispose the images.

You, the developer, are responsible for disposing any images you create in your code. Assuming you are assigning the images at run-time in code.If you are applying the images at design-time through the properties of the UltraPictureBox, then that would certainly be a serious problem.

How are you loading the images? You say you cannot load them into another program, so I assume your images are coming from image files on the hard drive. But I can't see any reason why loading an image from a file should lock the file from being used by other applications.

The reason I know the pictureboxes are not releasing the images is because I cannot load them using another program until I close the current Program.

Here is some code.

private

e)

{

//foreach (PictureBox pb in pnlPicBox.Controls)

(pnlPicBox.Controls.Count > 0)

{

pnlPicBox.Controls)

{

ctrl.Dispose();

}

}

(pnlInvoiceImages.Controls.Count > 0)

{

pnlInvoiceImages.Controls)

{

ctrl.Dispose();

}

}

.Forced);

.WaitForPendingFinalizers();

.Forced);

.WaitForPendingFinalizers();

.Forced);

.WaitForPendingFinalizers();

.Forced);

.WaitForPendingFinalizers();