jqgrid disable headers

I have a very simple question (I searched on google but found nothing).

How to disable hea开发者_Go百科der on a JQgrid, so that if the user clicks on a header: nothing happens (not sorting, not refreshing, and not appearing that little arrow on the right, but allowing to resize the column)??.

I hope you can help me, Thanks in advance.

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I found the solution by myself:

You only need to put:

sortable: false

On each column you don't want to be sorted and thats it.