How to turn off ProgressForm while building or viewing the report?

Question: How to turn off ProgressForm while building or viewing the report?

Answer:

You can turn off the ProgressForm in EnvironmentSettings:
Report report = new Report();
report.LoadPrepared("1.fpx");
EnvironmentSettings s = new EnvironmentSettings();
s.ReportSettings.ShowProgress = false;
report.Show();