private bool Read(string folder, out List <CheckableExtItem> items)
{
items = null;
DirectoryInfo dirInfo = new DirectoryInfo(folder);
FileInfo[] fileInfos = dirInfo.GetFiles();
List <string> exts = new List <string>();
List <CheckableExtItem> extItems = new List <CheckableExtItem>();
foreach (FileInfo info in fileInfos)
{
string extension = info.Extension;
CheckableExtItem extItem;
int index = extItems.FindIndex(item => item.Extension.Equals(extension));
if (index < 0)
{
exts.Add(info.Extension);
extItem = new CheckableExtItem(info.Extension);
extItem.PathList = new BindingList <string>();
extItems.Add(extItem);
}
else
{
extItem = extItems[index];
}
extItem.PathList.Add(info.FullName);
}
items = extItems;
return(true);
}
private void ExtensionSelectionChanged(object sender, SelectionChangedEventArgs e)
{
bool hasAdded = e.AddedItems != null && e.AddedItems.Count > 0;
bool hasRemoved = e.RemovedItems != null && e.RemovedItems.Count > 0;
if (hasAdded || hasRemoved)
{
//Update path list of selected extension
var pathList = new List <string>();
foreach (var item in List00.SelectedItems)
{
CheckableExtItem checkable = item as CheckableExtItem;
if (checkable != null)
{
pathList.AddRange(checkable.PathList);
}
}
List01.ItemsSource = pathList;
}
}
