Automate Re-sequence (Power query)

Hi ngct1112 ,

 

My workaround is adding a rank column based on each ID, here is the full M code:

let
    Source = Excel.Workbook(File.Contents("C:\Users\eyelynq\Desktop\Sort By.xlsx"), null, true),
    Table1_Table = Source{[Item="Table1",Kind="Table"]}[Data],
    #"Changed Type" = Table.TransformColumnTypes(Table1_Table,{{"ID", type text}}),
    #"Split Column by Delimiter" = Table.SplitColumn(#"Changed Type", "ID", Splitter.SplitTextByEachDelimiter({"-"}, QuoteStyle.Csv, false), {"ID.1", "ID.2"}),
    #"Added Index" = Table.AddIndexColumn(#"Split Column by Delimiter", "Index", 1, 1, Int64.Type),
    Grouped = Table.Group(#"Added Index", {"ID.1"}, {{"AllRows", each _, type table [ID.1=nullable text, ID.2=nullable text, Index=number]}}),
    RankFunction = (tabletorank as table) as table =>
     let
      SortRows = Table.Sort(tabletorank,{{"ID.1", Order.Descending}}),
      AddIndex = Table.AddIndexColumn(SortRows, "Rank", 0, 1)
     in
      AddIndex,
    AddedRank = Table.TransformColumns(Grouped, {"AllRows", each RankFunction(_)}),
    #"Expanded AllRows" = Table.ExpandTableColumn(AddedRank, "AllRows", {"Rank"}, {"Rank"}),
    #"Added Custom" = Table.AddColumn(#"Expanded AllRows", "Desired", each if [Rank]=0 then [ID.1] else  [ID.1] &"-0"&Number.ToText([Rank])),
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Rank", "ID.1"})
in
#"Removed Columns"

 

But the final output is a little different from what you expected since power bi could not specify which is the new added rows.

 

Best Regards,
Eyelyn Qin
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