Hi Mind hacker,
Thanks for using Syncfusion product.
Query #1: Displaying all the columns without scrolling.
As of now we don’t have any direct support to achieve your requirement of “Displaying all the columns without scrolling” but it can be achieved in sample level by creating the style for adjusting width in the size changed event. We have prepared sample for the same and please find the sample in the below link.
Query #2: Is there any way to disable overlay?
Since the provided information is not sufficient to procced further, could you please provide more information about your requirement? so that we could analyze on your requirement further and provide you the possible solution.
Please let us know if you have any concerns.
Regards
Vigneshkumar R