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Help me to fix reset list of command execution [message #1457487]

Fri, 31 October 2014 11:25

ramukumar M

Messages: 14
Registered: June 2012

Junior Member

Hello All,
I have a dialog and It has 3 tables A,B,C.
Basic functionality is to fill items to B and C from A. and If I remove item either from B or C it has to go back to A.
All these actions are achieved after writing to model(EMF model) . to do that I am using basic commands like set / add/ remove./delete commands ,
if they click on cancel i have to revert all the changes don on this dialog.
Command execution is done then and there (This is the requirement Sad

)
So i cant use compound command here.
Please give me an idea to solve this

Note:
All the there tables belongs to same model but different Eobjects Smile

Thanks in advance
Ramukumar M

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Re: Help me to fix reset list of command execution [message #1461313 is a reply to message #1457487]

Tue, 04 November 2014 12:32

Erdal Karaca

Messages: 854
Registered: July 2009

Senior Member

You can remember the command stack's head (before calling the dialog to edit the objects) and revert/undo to the remembered position if the user presses cancel in the dialog (and make sure the undo operation is not available as long as the dialog is active).
You may also have a look at the transactions API which is much more powerful and could be the better fit.

ramukumar M wrote on Fri, 31 October 2014 12:25

Hello All,
I have a dialog and It has 3 tables A,B,C.
Basic functionality is to fill items to B and C from A. and If I remove item either from B or C it has to go back to A.
All these actions are achieved after writing to model(EMF model) . to do that I am using basic commands like set / add/ remove./delete commands ,
if they click on cancel i have to revert all the changes don on this dialog.
Command execution is done then and there (This is the requirement )
So i cant use compound command here.
Please give me an idea to solve this

Note:
All the there tables belongs to same model but different Eobjects

Thanks in advance
Ramukumar M

Report message to a moderator

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