After sending data to a host, using VT or other non-block mode emulation, you must pause execution until you determine when the host has finished with its reply.

//For any terminal screen, you can use the following methods to navigate 
 IScreen screen = terminal.Screen;
       
//Wait for the host before entering commands
screen.Wait(3000);
screen.SendKeys("demodata");
screen.SendControlKey(ControlKeyCode.Enter);

//Wait for the host before entering additional commands
screen.Wait(3000);
//additional commands...
        

Finding and Moving to Screen Locations

You can use Reflection Search functions to find locations on the screen that you want to use as a starting point for a selection.

This sample finds the text "Jan"  on an Open Systems screen.

//Wait for the host and then select data on screen
 screen.Wait(3000);
 ScreenPoint point = screen.SearchText("Jan", 1,1,FindOptions.Forward);
 screen.SetSelectionStartPos(point.Row, point.Column);
 screen.ExtendSelection(point.Row, (point.Column + 3));