protected override void Invoke(object parameter)
{
var e = parameter as InteractionRequestedEventArgs;
if (e != null)
{
FileDialogConfirmation confirmation = e.Context as FileDialogConfirmation;
if (confirmation != null)
{
ConfigDialog(confirmation);
}
if (FileDialog.ShowDialog() == true)
{
if (confirmation != null)
{
OnOK(confirmation);
}
}
if (e.Callback != null)
{
e.Callback();
}
}
}
protected override void ConfigDialog(FileDialogConfirmation confirmation)
{
var c = (OpenFileDialogConfirmation)confirmation;
if (c.Multiselect != null)
{
this.FileDialog.Multiselect = c.Multiselect.Value;
}
base.ConfigDialog(confirmation);
}
protected override void ConfigDialog(FileDialogConfirmation confirmation)
{
SaveFileDialogConfirmation c = (SaveFileDialogConfirmation)confirmation;
if (c.OverwritePrompt != null)
{
this.FileDialog.OverwritePrompt = c.OverwritePrompt.Value;
}
base.ConfigDialog(confirmation);
}
protected virtual void ConfigDialog(FileDialogConfirmation confirmation)
{
if (!string.IsNullOrEmpty(confirmation.Filter))
{
FileDialog.Filter = confirmation.Filter;
}
if (confirmation.FilterIndex >= 0)
{
FileDialog.FilterIndex = confirmation.FilterIndex;
}
}
protected virtual void OnOK(FileDialogConfirmation confirmation)
{
confirmation.Confirmed = true;
confirmation.FileName = FileDialog.FileName;
confirmation.FileNames = FileDialog.FileNames;
}