private void MenuTNFImport_Click(object sender, EventArgs e) { FrmImportVF frm = FrmImportVF.GetSingleton(); frm.MdiParent = this; frm.Show(); frm.Activate(); }
public static FrmImportVF GetSingleton() { if (frm == null || frm.IsDisposed) { frm = new FrmImportVF(); } return(frm); }