Understanding ImageList

[Just Me]

If I add an image to an imagelist using

imageList.Images.Add...

And want to use it with a tree node

tn.ImageIndex = imageIndex

How do I know what to set imageIndex to?



If I want to add Images to an ImageList in some random fashion, say item 2,
then 0, then 1. How do I do that?



Thanks for any help

 

[Richard Myers]

If I add an image to an imagelist using

imageList.Images.Add...

And want to use it with a tree node

tn.ImageIndex = imageIndex

How do I know what to set imageIndex to?

tn.ImageIndex = imageList.Images.Count-1

or

tn.ImageIndex = imageList.Images.IndexOf(myImage)

If I want to add Images to an ImageList in some random fashion, say item 2,
then 0, then 1. How do I do that?

You will need to add a bunch of dummy to fill the collection to the desired
size and then replace those with the images in question. However it sounds
like you'd be using the collection incorrectly. Why is the order important?

Richard

 

[Just Me]

How do I know what to set imageIndex to?

tn.ImageIndex = imageList.Images.Count-1

This is what I do

tn.ImageIndex = imageList.Images.IndexOf(myImage)

But I realized I didn't know a general way, like this
But is myimage simply the Icon I added to the list???
THANKS


Using it with a TreeView for a Windows Explorer like app. Each time I open
a directory I get the icons for the files and add them to the Imaglist.
However, I don't like the idea that the list keeps growing. If myimage above
is really just the icon I can use the above to see if it is already in the
list. Comment?



Does the imagelist actually stores the image?

If so, do you think it has to compare the bits to find the index given an
icon?

Thanks again