c# - "the process cannot access the file because it is being used by another process"试图删除文件时

Question

当一个一个地删除文件时，会生成错误“该进程无法访问该文件，因为在尝试删除文件时它正被另一个进程使用”

代码:对于像这样删除文件有什么建议吗？

      private void DeleteFilesFromDestination()
      {
           string consolidatedFolder = System.Configuration.ConfigurationManager.AppSettings["path"].ToString();

           foreach (String file in ListBoxDeleteFiles.Items)
           {
                try
                {
                     // delete each selected files from the specified TargetFolder 
                     if (System.IO.File.Exists(consolidatedFolder + @"\" + System.IO.Path.GetFileName(file)))
                     {
                         proc.WaitForExit(); 
                         System.IO.File.Delete(consolidatedFolder + @"\" + System.IO.Path.GetFileName(file));
                     }
                }
                catch (Exception ex)
                {
                     MessageBox.Show("Error Could not Delete file from disk " + ex.Message, "Shipment Instruction",
                         MessageBoxButtons.OK, MessageBoxIcon.Error);
                     return;
                }

           }
      }

注意:图像将像这样加载到流式布局面板中

 //Open the files to see
          private void ListBoxSourceFiles_Click(object sender, EventArgs e)
          {
               try
               {
                    if (ListBoxSourceFiles.SelectedItem != null || !ListBoxSourceFiles.SelectedItem.Equals(string.Empty))
                    {
                         //MessageBox.Show("Selected " + ListBoxSourceFiles.SelectedItem);
                         PictureBox pb = new PictureBox();
                         Image loadedImage = null;
                         loadedImage = Image.FromFile(ListBoxSourceFiles.SelectedItem.ToString());
                         pb.Height = loadedImage.Height;
                         pb.Width = loadedImage.Width;
                         pb.Image = loadedImage;
                         flowLayoutPanel1.Controls.Clear();
                         flowLayoutPanel1.Controls.Add(pb);
                    }
               }
               catch (Exception ex)
               {
                    MessageBox.Show(ex.Message, "Ship Instruction",
                            MessageBoxButtons.OK, MessageBoxIcon.Information);
                    return;
               }
          }

Answer 1

您没有具体说明您要删除的文件，但从您的问题来看，您似乎在尝试删除您加载的图像文件。如果是这样，那你就有问题了。 documentation for Image.FromFile说:

The file remains locked until the Image is disposed.

如果您需要删除文件的能力，您需要在加载图像后复制图像，并在您的 PictureBox 中使用该图像。然后你可以处理加载的图像，从而解锁文件。