>I have a grid that is "built" by an update method called by a timer. This grid uses a custom textbox in all the columns so that I have several features one of them being a right click menu. I seem to be having an issue of a user right clicking in the grid WHILE the update method is running. I have tried several things, with no sucess. How would you prevent a native event from firing for the grid BEFORE any code in that event is run, so that the update method doesn't have a problem with updating the textbox of the grid control?
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>Any suggestions?

To prevent an event you need to use NODEFAULT. So, if you can identify condition, just add NODEFAULT for this condition in that method.