Sorting UI5 Table

Hi there,

I'm a beginner at developing web applications via UI5 and am having some difficulty with the sort option for my table.

I currently have a column with a timestamp in it and wish to sort the table by this column descending so that the newest inserted records are displayed first. I know this can be done by selecting the 'sort descending' option from the table itself by the user but wish to do it upon table construction. I have tried using "columnName.setSorted()" and declaring a 'sortOrder' variable but am unsure what the best course of action is.

Has anybody faced the same difficulty or is there an obvious solution that I'm missing?

Below is a snippet of my table and column creation and the table is populated from an OData model.

Thanks in advance!

James