DataTable already belongs to another DataSet

Question

This error is occuring while adding one datatable from a dataset to another .\"DataTable already belongs to another DataSet.\"

dsformulaValues.Tables.Add(m_D         


        

Answer 1

The accepted answer isn't very good. Cloning should always be a last option.

Here's a way around the problem without incurring the overhead of cloning.

        DataSet ds = GetData1();

        DataSet ds2 = GetData2();

        //Assuming you know you've got good data

            DataTable dt = ds2.Tables[0];
            ds2.Tables.Remove(dt);
            dt.TableName = "PortedTable";//you may need to change the table name to prevent conflicts
            ds.Tables.Add(dt);