public static frmBasicOperations GetInstance() { if (_instance == null) { _instance = new frmBasicOperations(); } return(_instance); }
private void iconButton1_Click(object sender, EventArgs e) { frmTest childForm = new frmTest(); frmBasicOperations _currentChildForm = this; Panel myPanel = (Panel)this.Parent; if (_currentChildForm != null) { _currentChildForm.Close(); } childForm.TopLevel = false; childForm.FormBorderStyle = FormBorderStyle.None; childForm.Dock = DockStyle.Fill; myPanel.Controls.Add(childForm); myPanel.Tag = childForm; childForm.BringToFront(); childForm.Width = myPanel.Width; childForm.Show(); }