private bool OnScrollDownCmdCanExecute()
{
bool canExecute = false;
if (PdfFiles.Count > 1 &&
SelectedFile != null &&
PdfFiles.IndexOf(SelectedFile) < PdfFiles.Count - 1)
{
canExecute = true;
}
return(canExecute);
}
private bool OnMoveDownCmdCanExecute()
{
if (!IsBusy &&
SelectedFile != null &&
PdfFiles.IndexOf(SelectedFile) < PdfFiles.Count - 1)
{
return(true);
}
else
{
return(false);
}
}
private void MoveUpAndDown(int direction)
{
IsBusy = true;
int index = PdfFiles.IndexOf(SelectedFile);
App.Current.Dispatcher.Invoke(delegate
{
PdfFiles.Move(index, index + direction);
});
//Needed to trigger Selection Changed event In datagrid
SelectedFile = null;
SelectedFile = PdfFiles[index + direction];
IsBusy = false;
}
private void OnRemoveFileCmdExecute()
{
SelectedFile.Close();
int index = PdfFiles.IndexOf(SelectedFile);
App.Current.Dispatcher.Invoke(delegate { PdfFiles.RemoveAt(index); });
if (PdfFiles.Count > index)
{
SelectedFile = PdfFiles[index];
}
else if (PdfFiles.Any())
{
SelectedFile = PdfFiles[index - 1];
}
else
{
SelectedFile = null;
}
}
private void OnScrollDownCmdExecute()
{
int index = PdfFiles.IndexOf(SelectedFile);
SelectedFile = PdfFiles.ElementAt(++index);
}