How to extract 10 random rows from DataTable?

Question

Let\'s say I have a DataTable with ~50 rows (GetDataTable() on a list in SharePoint). I want to keep 10 random rows and forget about the rest. How can I achieve this?

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Answer 1

You can use a Fisher/Yates shuffle (implementation by Skeet) on the collection of rows on the DataTable, then select the first 10.

var random10 = dataTable.Rows.OfType().Shuffle(new Random()).Take(10);