>Hi friend :
> I have the following code in Foxpro and now, could you please show me how to convert it to .NET language ?
>
>create cursor v_templetA( date d, product_code c(15),product_name c(50))
>create cursor v_templetB( date d, product_code c(15),product_name c(50),grpcode c(15),grpname c(50))
>
>select v_templetA
>append from dbf('v_templetB')

You should not think in VFP terms when working with .NET
The nearest equivalent would be something like:

DataTable v_templateA = new DataTable();
            v_templateA.Columns.AddRange( new DataColumn[]{ _
                new DataColumn("date",typeof(DateTime)), _
                new DataColumn("product_code", typeof(String)), _
                new DataColumn("product_name",typeof(String))} _
                );
            v_templateA.Columns["product_code"].MaxLength = 15;
            v_templateA.Columns["product_name"].MaxLength = 50;

            DataTable v_templateB = v_templateA.Copy();
            DataColumn dc1 = new DataColumn("grpcode",typeof(String));
            dc1.MaxLength = 15;
            v_templateB.Columns.Add(dc1);
            DataColumn dc2 = new DataColumn("grpname", typeof(String));
            dc2.MaxLength = 50;
            v_templateB.Columns.Add(dc2);

But this is almost certainly not the approach you would take.....