private void 除ToolStripMenuItem_Click(object sender, EventArgs e) { if (this.listView1.SelectedItems.Count > 0) { //if (MessageBox.Show("是否删除该预置点?") == DialogResult.OK) if (MessageBox.Show("确定要删除该预置点吗?", "提示", MessageBoxButtons.YesNo) == DialogResult.Yes) { if (this.listView1.SelectedItems[0].Tag is CameraPresetPoint) { var cameraPresetPoint = this.listView1.SelectedItems[0].Tag as CameraPresetPoint; //int id = cameraPresetPoint.ID; //List<Camera> cameraList = Camera.find(id); //if (showDeviceList != null) //{ // MessageBox.Show("该设备类型在使用中,不能删除"); // return; //} CameraPresetPoint.Delete(cameraPresetPoint); this.InitCameraPreSetPointListView(); this.cameraPreSetPointId = 0; } } } }