Question

I have a Datatable D1 with

DataTable 1
------------
ID  Name1
1   S1
2   S2
4   S4


DataTable 2
------------
ID  Name2
1   D1
2   D2
3   D3

Result:

FinalTable
-----------
ID  Name1  Name2
1   S1     D1
2   S2     D2
3          D3
4   S4 

I tried the merge ds1.Merge(dt2, true, MissingSchemaAction.Add);
This adds additional columns instead

Thanks
Sun

Answer 1

I believe you are looking to perform a FULL OUTER JOIN between two DataTables. “Full Outer Join of Two DataTables C# Code” seems to be a decent-enough example, otherwise you now know what search terms to use.