private void pictureBox_Drop_Click(object sender, EventArgs e) { if (displayDropForm == null || displayDropForm.IsDisposed) { displayDropForm = new DisplayDropForm(); displayDropForm.Show(this.DockPanel); } else { displayDropForm.Show(this.DockPanel); } }
private void treeView1_AfterSelect(object sender, TreeViewEventArgs e) { TreeNode a = e.Node; switch (a.Text) { case "摄像头监控": if (displayVideoForm == null || displayVideoForm.IsDisposed) { displayVideoForm = new DisplayVideoForm(); displayVideoForm.Show(this.DockPanel); } else { displayVideoForm.Show(this.DockPanel); } break; case "水浸监控": if (displayDropForm == null || displayDropForm.IsDisposed) { displayDropForm = new DisplayDropForm(); displayDropForm.Show(this.DockPanel); } else { displayDropForm.Show(this.DockPanel); } break; case "温湿度监控": if (displayTempForm == null || displayTempForm.IsDisposed) { displayTempForm = new DisplayTempForm(); displayTempForm.Show(this.DockPanel); } else { displayTempForm.Show(this.DockPanel); } break; default: break; } }