Sorting datatable according to multiple columns

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@arun.v7
keep one thing in mind:

grouping on first column and sorting on first column will create the series
111,222 …

sorting on second column you should decide the criteria for the sorting Ascending, Descending

maybe the following is needed:

(From d in dtAdultTable.AsEnumerable
Let s1 = CInt(d("GN").toString.Trim)
Let s2 = d("JMBWN").toString.Trim
Order by s1,s2 DESCENDING
Select r=d).CopyToDataTable

But we cannot do:
The image shows a table with columns "GN," "JMBWN," and "Name," with handwritten notes indicating a comparison between descending (desc) and ascending (asc) order sorting. (Captioned by AI)

UPD1 - Visualizations:
The image displays two data tables, "dtData" and "dtData2," with columns for identifiers and names, showing different sets of rows. (Captioned by AI)