private void LoadFiles(object sender, MouseButtonEventArgs e)
{
if (RegisteredTypes?.Any != true)
{
throw new Exception("You must specify at least one supported file type.");
}
var dialog = new OpenFileDialog
{
Multiselect = true,
Filter = RegisteredTypes.ToString()
};
dialog.ShowDialog();
if (!dialog.FileNames.Any())
{
return;
}
this.ProcessingFiles(true);
var eventArgs = new DragAndDropEventArgs(this);
SortData(dialog.FileNames, eventArgs);
OnDataRecievedFromDropOperation(eventArgs);
this.ProcessingFiles(eventArgs.WaitForAsync);
}
private void DragAndDropControl_OnDrop(object sender, DragEventArgs e)
{
var eventArgs = new DragAndDropEventArgs(this);
if (e.Data.GetDataPresent(DataFormats.FileDrop))
{
this.ProcessingFiles(true);
SortData((string[])e.Data.GetData(DataFormats.FileDrop), eventArgs);
OnDataRecievedFromDropOperation(eventArgs);
}
this.ProcessingFiles(eventArgs.WaitForAsync);
}
private void SortData(string[] paPaths, DragAndDropEventArgs paSortedPapaEventArgs)
{
var supportedTypes = RegisteredTypes.FileTypes;
paSortedPapaEventArgs.FilesPaths = new Dictionary <string, List <string> >();
foreach (var supportedType in supportedTypes)
{
paSortedPapaEventArgs.FilesPaths.Add(supportedType, new List <string>());
}
foreach (var path in paPaths)
{
var type = $"{path.Split('.').Last().ToLower()}";
var typeIndex = supportedTypes.IndexOf(type);
if (typeIndex > -1)
{
paSortedPapaEventArgs.FilesPaths[supportedTypes[typeIndex]].Add(path);
}
}
}
protected virtual void OnDataRecievedFromDropOperation(DragAndDropEventArgs e)
{
DataRecievedFromDropOperation?.Invoke(this, e);
}