My question was, I do not want to enable grouping by default. When users would like to switch to grouping mode, I would like to enable it dynamically. Current implementation does not support. I wanted to know if there is any way to implement this? I am sorry if my question was not clear earlier or may be I am missing something when you say refer some docs before posting the question.
I am not sure if I was conveying my question correctly or you misunderstood me. I have implemented grouping feature using the examples mentioned in the demo section only. In all those examples dynamic grouping is enabled by default. I would like to disable dynamic grouping initially and later on would like to enable it when they select a group by column in the select option. There is an open issue on github for this. Please take a look at here
I unswered here on your identical question. I posted the demo which do the same what you described, but it have no described problem. So I suppose (like Tony wrote you before) that you should examine your code (which you not posted) for the problem. If you do found a bug in jqGrid you should provide the corresponding demo (the test case) which can be used to reproduce the problem.