undo-redo

I have too much problems trying to implement an Undo/Redo operation in a ListView Control, just to add/remove items. I realized time ago a relative question here Extend this Class to Undo/Redo in a Listview where I was started multiple bountyes of 50, 100, 200 and 300 points, a total of 650 points... but no body could really helped me to finalize this issue in weeks and months. But after time in that question finally a user ( @ThorstenC ) showed me a possible solution and a great idea, the code of him is incomplete so the code of him is what I'm trying to realize/finish. The problem is Simple

I'm using a thir party code to manage undo/redo operations in a WindowsForm project. I need to extend the Class to manage undo/redo operations in a Listview, this means: · Undo/Redo Add/Delete items and subitems · Undo/Redo Check/Uncheck rows · Undo/Redo some other importants things that maybe I've missed I don't know how to start doing this, the code is too complex for me, any help/tips/examples about this would be very gratified for me, but in 3 months I have not been able to carry out this change, I think I will need good explanations or full examples, here is the code: ********************

I read the following in an article Immutable objects are particularly handy for implementing certain common idioms such as undo/redo and abortable transactions. Take undo for example. A common technique for implementing undo is to keep a stack of objects that somehow know how to run each command in reverse (the so-called "Command Pattern"). However, figuring out how to run a command in reverse can be tricky. A simpler technique is to maintain a stack of immutable objects representing the state of the system between successive commands. Then, to undo a command, you simply revert back to the

I am in the design process of an application, and I would like to use the command pattern for undo/redo purposes. I did some research into the command pattern but the only thing I don't get is: Should a command have the undo and redo methods, or should I make two separate commands, one for undo and one for redo, and call those from the main command itself? The command object itself should implement the undo / redo functionality. The commands are generally pushed and popped from a stack maintained by a command manager to implement multi level undo. When commands are executed they are pushed

Hi I'm about to add new functionality to application which I'm currently writting. I need to write a undo/redo fnctionality. However 90% of our application is ready and I don't know what is the best way to implementing this functionality without affectig(too much ) code which has been already created. There aren't many details here. However, Undo/Redo functionality is typically handled via some variation of the Command Pattern . Depending on your architecture, this could be a simple reworking of your basic functionality into "commands", or a major overhaul. ArBR As Reed Copsey says the most