jLinq | Perform LINQ style queries with JSON data

Sorry, but I'm not sure what you need to implement. You can get lastSelectedData parameter to have the array of filtered and sorted data, based on the current filter. The full data are available via lastSelectedData parameter. The filters property of postData parameter gets you the current filter.

You asked "are there any public functions to get current query for grid?". You can use getGridParam method to get current query. I guess, that you want to get access to some internal structures close to jlinq, but it gives really no practical value. You can access the class via $.jgrid.from, but it's not really helpful. Practical one needs only to set new filter in postData.filters parameter, set search parameter to true and call .trigger("reloadGrid") to reload grid with new data.

If you need to filter or to sort some data yourself, then array methods filter and sort will be more effective. If the above information don't help you to solve your problem, please append your question with additional information, which describes the problem more detailed on an example and post me small comment.

Updated: I'm still not sure that I exactly understand what you want to implement. It seems to me that the most functionality of your JSFiddle demo can be removed if you use some free jqGrid options.

Look at https://jsfiddle.net/OlegKi/wqxyo579/25/, which used