//选中日期的月份画图
private void DrawTheMonth(object sender, RoutedEventArgs e)
{
ClearCanvas();
try
{
DrawPre.getListm(viewModel.NotesList, calendar.SelectedDate.Value);
Draw();
}
catch (System.InvalidOperationException)
{
Xceed.Wpf.Toolkit.MessageBox.Show("必须要选中某个日期！");
}
}
//当前月份的画图
private void DrawMonth(object sender, RoutedEventArgs e)
{
ClearCanvas();
DrawPre.getListm(viewModel.NotesList, DateTime.Now);
Draw();
}