Column 'NAMM' already belongs to another DataTable

[hosein.jozi]

برای رفع این خطا چه باید کرد
این هم کد



DataView view = new DataView(db.OpenTable("select * from MYTABALE", "MYTABLE"));
int RowCounter;
DataTable table = new DataTable();
DataView viewt;
DataColumn[] adc = new DataColumn[view.Table.Columns.Count];
view.Table.Columns.CopyTo(adc,0);

table.Columns.AddRange(adc);