Could not Delete image from directory using C# - c#-4.0

Question

I am trying to delete an image from directory using following statement
System.IO.File.Delete(Path);
i have previously accessed this image in another function
Image image=Image.FromFile(imagePath)
imageList1.Images.Add(image);
but it shows an error that file is locked by another process. I searched for this and find out that I should use using to dispose of the image object so i tried this
using(Image image=Image.FromFile(imagePath))
imageList1.Images.Add(image);
but this gives me an error in program.cs that paramter is not valid and programs doesnot run.
and sometime it gives the error
Starting a second message loop on a single thread is not a valid operation. Use Form.ShowDialog instead.
I am adding the imagelist to a list view and before deleting the file i am clearing all the items of both imagelist and listview with following commands.
imageList1.Images.RemoveByKey(imageName);
imageList1.Images.Clear();
listView1.Items.RemoveByKey(imageName);
listView1.Items.Clear();
listView1.SmallImageList = null;
this is my code where i am populating listview.
try
{
string album = albumListBox.SelectedItem.ToString();
List<string> imageName=new List<string>();
XmlDocument doc = new XmlDocument();
doc.Load(Application.StartupPath + "/image.xml");
XmlNodeList list = null;
list = doc.SelectNodes(string.Format("/images/image"));
listView1.Columns.Clear();
listView1.Columns.Add("Image List",210,HorizontalAlignment.Left);
listView1.SmallImageList = imageList1;
listView1.Items.Clear();
imageList1.Images.Clear();
listView1.MultiSelect = false;
foreach (XmlNode node in list)
{
if (node.ChildNodes[2].InnerText == album)
{
string imagePath = Application.StartupPath + "\\images\\" + album + "\\" + node.ChildNodes[0].InnerText;
Image image = Image.FromFile(imagePath);
imageList1.Images.Add(image);
imageName.Add(node.ChildNodes[0].InnerText);
}
}
for (int j = 0; j < this.imageList1.Images.Count; j++)
{
listView1.Items.Add(imageName[j],imageName[j],j);
listView1.View = View.Details;
}
}
catch (Exception e)
{
MessageBox.Show("No Images in this Album Please add the Images");
showImage.Hide();
}
and this is the code where i want to delete the file
var listItem = listView1.SelectedItems[0];
string album = albumListBox.SelectedItem.ToString();
string imageName = listItem.Text;
string imagePath = Application.StartupPath + "\\images\\" + album + "\\" + imageName;
XmlDocument doc = new XmlDocument();
doc.Load(Application.StartupPath + "/image.xml");
XmlNode node = doc.SelectSingleNode(string.Format("//image[./imageName/text()='" + imageName + "' and ./album/text()='" + album + "']"));
if (node != null)
{
//remove image from directory tooV
doc.DocumentElement.RemoveChild(node);
doc.Save(Application.StartupPath + "/image.xml");
imageList1.Images.RemoveByKey(imageName);
imageList1.Images.Clear();
listView1.Items.RemoveByKey(imageName);
listView1.Items.Clear();
listView1.Items[listView1.SelectedIndices[0]].Remove();
imageList1.Images.RemoveAt(listView1.SelectedIndices[0]);
listView1.SmallImageList = null;
fillImageList();
System.IO.File.Delete(imagePath);
MessageBox.Show("Image deleted");
fillAlbumList();
}

Answer 1

So far as the image is still referenced in imagelist1, it is not disposed. In order to properly dispose it, you will have to dispose the imagelist1 also. Then only all the reference to Image are closed.