private void Button1_Click(object sender, System.EventArgs e)
{
System.Windows.Forms.Form mdiParent = (System.Windows.Forms.Form) this;
if (formTeste == null)
{
formTeste = new mdlRelatoriosFaturaProforma.frmRelatoriosFaturaProforma(ref m_cls_tre_tratadorErro, ref m_cls_dba_ConnectionBD, ref mdiParent, m_strEnderecoExecutavel, Int32.Parse(this.txtIdExportador.Text), txtIdCotacao.Text);
formTeste.MdiParent = this;
formTeste.Show();
}
else
{
formTeste.Close();
formTeste = null;
}
}