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

Try calling this method:

DataTable dt = dv.ToTable.DefaultView.ToTable(False, strSelectedCols)).Tables(0).Clone()

This will create a copy of the DataTable and assign it to the target DataSet:

ds.Tables.Add(dt)