private void btnTask_Click(object sender, EventArgs e) { int nI = 0; foreach (Form form in Application.OpenForms) { if (form.Name == "frmTasksView") { form.Activate(); form.BringToFront(); nI++; } } if (nI == 0) { frmTasksView TasksView = new frmTasksView(); TasksView.MdiParent = this; this.splitContainer2.Panel2.Controls.Add(TasksView); TasksView.Dock = DockStyle.Fill; TasksView.Show(); } }