Flynet Viewer .NET Programmer's Reference

setMDT Method - Set Field Modified Data Tag

setMDT Method - Set Field Modified Data Tag

Previous topic Next topic  

setMDT Method - Set Field Modified Data Tag

Previous topic Next topic  

Set that a field on the active display has been changed so that it will be updated to the host on the next AID entry key

 

void setMDT(int row, int column);

void setMDT(int offset);

 

Arguments

 

HostScreen

 Required. HostScreen object.

 

Offset

 Required. The offset position on the host screen of the first character of the field, not the attribute location (which is one character before the field data).

row

 Required if not offset form. The row number on the host screen of the first character of the field, not the attribute location.

column

 Required if not offset form. The column number on the host screen of the first character of the field, not the attribute location.

 

Remarks

 

In some cases, a field needs to be re-transmitted as "changed" even if the actual value has not been changed.  This can be the case where a host application requests a terminal emulator user to "re-key" a value in order to confirm its contents.  The normal Flynet Viewer behavior is to only change the MDT (Modified Data Tag) when the contents of the field are actually changed.  This avoids issues and unnecessary host writes in a screen-scraping environment with code that updates fields even when the contents don't really need updating.

 

This method applies only to formatted (5250/3270) displays.

 

Requirements

 

Flynet Viewer

 

See Also

 

setAttribute | mappedSet | putKeys | putCommand | paddingMode | paddingChar | setText

 

Applies To: HostScreen object

 


© 2016 Inventu Corporation, Flynet LTD