move image to clipboard is not working c#

Question

I'm trying to make a file manager that can bring all files from the directory and subdirectories and list them all in a listView. I have completed everything except the Cut button.

this is my code

 private void Cut()
    {
        CutWasSelected = true;
        Clipboard.Clear();
        copiedFiles.Clear();
        pictureBox1.Image = null;
        WinMideaPlayer.URL = null;
        
        

        if (listView.SelectedItems.Count > 0)
        {

            foreach (ListViewItem item in listView.SelectedItems)

            {
                copiedFiles.Add(item.Name);
                if (listBothDirAndFiles.Contains(item.Name))
                {
                    listBothDirAndFiles.Remove(item.Name);
                }
                if (listfiles.Contains(item.Name))
                {
                    listfiles.Remove(item.Name);
                }
                if (listimages.Contains(item.Name))
                {
                    listimages.Remove(item.Name);
                }
                if (listvideo.Contains(item.Name))
                {
                    listvideo.Remove(item.Name);
                }
                if (listWordDocuments.Contains(item.Name))
                {
                    listWordDocuments.Remove(item.Name);
                }
                if (listPDFdocuments.Contains(item.Name))
                {
                    listPDFdocuments.Remove(item.Name);
                }
                if (listTxtFiles.Contains(item.Name))
                {
                    listTxtFiles.Remove(item.Name);
                }
                if (listCompressedFiles.Contains(item.Name))
                {
                    listCompressedFiles.Remove(item.Name);
                }
                
                item.Focused = false;
                item.Selected = false;
                listView.Items.Remove(item);
                
                

                byte[] moveEffect = new byte[] {2,0,0,0};
                MemoryStream dropEffect = new MemoryStream();
                dropEffect.Write(moveEffect, 0, moveEffect.Length);

                DataObject data = new DataObject();
                data.SetFileDropList(copiedFiles);
                data.SetData("Preferred DropEffect", dropEffect);
                

                Clipboard.Clear();
                Clipboard.SetDataObject(data);

                

            }
            

        }
       
    }

all files are working fine with this code including videos and text files except the images. when I select an Image and press on the cut button and then open the file explorer to paste the image I get a message says that " The action can't be completed because the file is open in TestExplorer4". I have searched my whole code and I'm pretty sure that I am not using the image anywhere in my project. So, could someone please explain to me why I am getting this message and how can I fix this problem. thank you in advance. enter image description here

If TestExplorer4 is your application and this code belongs to it, then your own application is holding onto the file so it cannot be moved. Make sure if any class is `IDisposable` and you have objects of that class to dispose of them. — CodingYoshi, Jul 03 '20 at 01:47
thank you guys for your help, I found where the problem was. I was using SelectIndexChanged event to view the Images in PictureBox in my application and I was using image.fromFile method, this method was holding the image even when I delete it. Now, I replace that method with Image.FromStream and everything is working fine now. — AboSqr, Jul 04 '20 at 02:24

score 0 · Answer 1 · answered Jul 03 '20 at 01:41

The file is in use by another program (probably VSCode or VisualStudio) and is locked. Here's how you can check: Is there a way to check if a file is in use? - to fix this first check if its locked, if it isn't no problem.

If it is locked then a make a temporary copy of the file and use that instead, then delete the temporary file copy.

move image to clipboard is not working c#

1 Answers1