Wolfram Technology Guide: Automated Table Layout  previous | next 
Arbitrary Tabular User Interface Layout
Mathematica makes it easy to create--on the fly--any form of user interface layout, here a random array of sliders and checkboxes.
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Click for copyable input
Grid[Table[

  RandomChoice[{Slider[ImageSize -> Tiny], Checkbox[]}], {15}, {5}], 

 Frame -> All]
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