private void Button_Click(object sender, System.Windows.RoutedEventArgs e)
{
openFileDialog = new OpenFileDialog();
openFileDialog.Multiselect = true;
openFileDialog.Filter = "ShapeFiles(*.shp)|*.shp";
if (openFileDialog.ShowDialog().GetValueOrDefault())
{
model.LoadSourceFiles(openFileDialog.FileNames);
}
}
