public FORM_PRODUCTS() { InitializeComponent(); btn_update.Enabled = false; btn_delete.Enabled = false; btn_print.Enabled = false; btn_add.Enabled = true; if (frm == null) /*بعين قيمة لل form لو قيمتة ب null وهى تكون قيمتها الحالية */ // .......[4] { frm = this; } this.dataGridView1.DataSource = prd.GET_ALL_PRODUCTS(); }
private void productManagementToolStripMenuItem_Click(object sender, EventArgs e) { FORM_PRODUCTS frm = new FORM_PRODUCTS(); frm.ShowDialog(); }
private static FORM_PRODUCTS frm; // ......................[1] static void frm_formclosed(object sender, FormClosedEventArgs e) // ................[2] { frm = null; }