Close Previouse Foam in C#

[ebbi]

when i am closing me previous foam by using


this.close();
my all application become close !!
please help me

mY Code is here

private void btnNewInvoice_Click(object sender, EventArgs e)
        {
 
            using (AmdDataSet.InvoiceHeaderTableDataTable htabel = new AmdDataSet.InvoiceHeaderTableDataTable())
            {
                AmdDataSet.InvoiceHeaderTableRow hRow;
                hRow = htabel.NewInvoiceHeaderTableRow();
                hRow.InvoiceDate = Convert.ToDateTime(DateTime.Now);
                htabel.AddInvoiceHeaderTableRow(hRow);
                using (AmdDataSetTableAdapters.InvoiceHeaderTableTableAdapter hadp = new AmdDataSetTableAdapters.InvoiceHeaderTableTableAdapter())
                {
                    //hadp.Fill(htabel);
                    hadp.Update(htabel);
                     ab = hRow.InvoiceNo.ToString();
 
                }
 
 
        }
 
            ViewData form = new ViewData();
            form.Show();
            form.Activate();
            this.Close();
 
        }

[michaeldebruin]

You might wanna try something with another closing code which is "Environment.exit".