How to get difference between two DataTables

Question

I have these two datatables and I want to get the difference between them. Here is an example:

Table1
-------------------------
ID  |   Name 
---------------         


        

Answer 1

Try below, this is pretty basic. Merge two sets together, and get the difference. If the sets dont align up properly, then this will not work. Trying to Test the same

DataSet firstDsData = new DataSet();
DataSet secondDsData = new DataSet();
DataSet finalDsData = new DataSet();
DataSet DifferenceDataSet = new DataSet();
finalDsData.Merge(firstDsData);
finalDsData.AcceptChanges();
finalDsData.Merge(secondDsData);
DifferenceDataSet = finalDsData.GetChanges();