Retrieve the PK after an add into an in memory DataTable

[Lost User]

I know how to do this in SQL but I must do it from C#. The DataTable is actually in memory (an xsd). So I have some DataSet called "Converted" and in it is a Table called "Results" which has a relationship with another table called "Descriptions". I am converting some data (thus the name) to an in memory table I have created. The problem is that I need the Primary Key of the "Results" last insert in order to populate the "Descriptions". How can I get the last inserted primary key? The bellow code shows what I am doing. In the section Descriptions is where various paramaters from the raw data are then combined into multiple entries into the Descriptions table. I ofcourse need to link them back to the current row I am processing.

        foreach (RawData.ResultsRow rRow in \_rawData.Results)
        {
            Converted.ResultsRow nRow = MemDataSet.Results.NewResultsRow();
            nRow.Param = rRow.SomeParam
            MemDataSet.Results.AddResultsRow(nRow);

            //int pk = ??????
            ...
            #region Descriptions
            ConvertedDescriptionsRow dRow = MemDataSet.Descriptions.NewDescriptionsRow();
            dRow.Param = rRow.SomeDescriptor
            dRow.ResultsFK = pk;
            MemDataSet.Descriptions.AddDescriptionsRow(dRow);
            #endregion Descriptions
        }

"9 Pregnent woman can not have a baby in 1 month" -Uknown

[Ennis Ray Lynch Jr]

I'm not going to give you the answer but only because you put regions inside of methods.

Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

[Mycroft Holmes]

What sort of answer is that, he can have regions inside a method (NOT), how about nested regions and regions from the middle of one method to the middle of another method. I must admit I have never seen regions used inside a method

Never underestimate the power of human stupidity RAH

[zlezj]

Not possible.