Is there some better way to copy all DataSet Fields and their properties to another DataSet?

Question

I'm cloning a TClientDataSet and I want to copy all the fields to the clone (which is a new DataSet), I know I can loop through the Fields and copy the info, or make 2 instances of my class and just clone the cursor, but is there some better way? Something like create a new DataSet and assign the fields info?

EDIT:

The following class helper method works for me:

procedure TDataSetHelper.CopyFieldDefs(Source: TDataSet);
var
  Field, NewField: TField;
  FieldDef: TFieldDef;
begin
  for Field in Source.Fields do
  begin
    FieldDef := FieldDefs.AddFieldDef;
    FieldDef.DataType := Field.DataType;
    FieldDef.Size := Field.Size;
    FieldDef.Name := Field.FieldName;

    NewField := FieldDef.CreateField(Self);
    NewField.Visible := Field.Visible;
    NewField.DisplayLabel := Field.DisplayLabel;
    NewField.DisplayWidth := Field.DisplayWidth;
    NewField.EditMask := Field.EditMask;

   if IsPublishedProp(Field, 'currency')  then
     SetPropValue(NewField, 'currency', GetPropValue(Field, 'currency'));

  end;
end;

Anyone has a better way for doing this?

Answer 1

If you just want to copy the field definitions you can do the following:

ds2.FieldDefs.Assign(ds1.FieldDefs);
ds2.CreateDataSet;
ds2.Open;

Of course this assumes you created FieldDefs for ds1.