ReportViewer control scroll event not fired

问题

I am draging scrollbar of reportviewer control to try to fire the scroll event, but it does not work. DataGridView control shows the messagebox, source code like below.

private void reportViewer1_Scroll(object sender, ScrollEventArgs e) {
        MessageBox.Show("reportviewer is scrolling!");
}

private void dataGridView1_Scroll(object sender, ScrollEventArgs e) {
        MessageBox.Show("datagridview is scrolling!");
}

Have anyone encounter this problem?

Thanks.

UI - Windows forms Language - C# OS - Windows 7 64bit Tools - Visual Studio Ultimate 2013 + .Net Framework 4.6.2

回答1:

It's a bug of .Net framework 4.x (Thank Bob for his help)

The bug is reported to Microsoft Connect

来源：https://stackoverflow.com/questions/40668317/reportviewer-control-scroll-event-not-fired