In ImageListView How to Mark "USED"

[sddd1]

When Double Click the image , "Used Mark" in Imagelist View and Used Marked Save in setting ...
imageListView3.Items.Add(file.FullName);

 

[Skydiver]

What do you mean by "Mark used"?

Windows doesn't have any standard iconography or visual indicators to let the user know if they have already used or visited an application before. It's never had to. Imagine what the Windows Explorer or the Start Menu would look like if Windows did so.

Is this yet another case of trying to use a web UI paradigm in a Windows application? No wonder Windows gets such a bad rap for having inconsistent UI -- people just make up their own UI or try to apply UI from other places and put them into Windows.

 

[Skydiver]

Anyway, one way to indicate a "used" state is to use the state image list:

ListView.StateImageList Property (System.Windows.Forms)

Gets or sets the ImageList associated with application-defined states in the control.

docs.microsoft.com

If that the state icons are too subtle and you need a more web like look of graying out an image, you can implement an owner drawn list view and draw each of the images yourself. When you encounter an image that needs to be grayed out or otherwise marked as used, you could use one of the GDI methods to draw the image with a color transform applied.

 

[sddd1]

Anyway, one way to indicate a "used" state is to use the state image list:

ListView.StateImageList Property (System.Windows.Forms)

Gets or sets the ImageList associated with application-defined states in the control.

docs.microsoft.com

If that the state icons are too subtle and you need a more web like look of graying out an image, you can implement an owner drawn list view and draw each of the images yourself. When you encounter an image that needs to be grayed out or otherwise marked as used, you could use one of the GDI methods to draw the image with a color transform applied.

Could you modify the code:- ImageListView

 

[Skydiver]

No. We are not a code writing service.