public supplier_management() { InitializeComponent(); if (frm == null) /*بعين قيمة لل form لو قيمتة ب null وهى تكون قيمتها الحالية */ // .......[4] { frm = this; } this.dataGridView1.DataSource = claSup.GET_ALL_Supplier(); }
private static supplier_management frm; // ......................[1] static void frm_formclosed(object sender, FormClosedEventArgs e) // ................[2] { frm = null; }
private void suppliersManagementToolStripMenuItem_Click(object sender, EventArgs e) { supplier_management frmsupman = new supplier_management(); frmsupman.ShowDialog(); }