/// <summary> /// Calls frmBillallocation form /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void billAllocationToolStripMenuItem_Click(object sender, EventArgs e) { try { frmBillallocation objBillallocation = new frmBillallocation(); frmBillallocation open = Application.OpenForms["frmBillallocation"] as frmBillallocation; if (open == null) { objBillallocation.MdiParent = this; objBillallocation.Show(); } else { open.Activate(); if (open.WindowState == FormWindowState.Minimized) { open.WindowState = FormWindowState.Normal; } } } catch (Exception ex) { MessageBox.Show("MDI 213 : " + ex.Message, "OpenMiracle", MessageBoxButtons.OK, MessageBoxIcon.Information); } }