/// <summary>
/// 将新的数据对象集合对应的TreeViewItem控件包装为可拖曳
/// </summary>
void wrapTreeViewItemForDrag(DevTypeCollection devCollection)
{
foreach (DevType dataCell in devCollection.DevTypeList)
{
//根据数据源对象获取UI控件
TreeViewItem tvItem = treeView1.ItemContainerGenerator.ContainerFromItem(dataCell) as TreeViewItem;
if (tvItem != null)
{
new CustomDragDropHelper(tvItem);//包装成可拖曳的控件
//tvItem.PreviewMouseLeftButtonDown += new MouseButtonEventHandler(tvItem_PreviewMouseLeftButtonDown);
}
}
}
/// <summary>
/// 刷新树控件
/// </summary>
void refreshTreeView(DevTypeCollection devTypeC)
{
treeView1.DataContext = devTypeC.DevTypeList;
treeView1.ItemsSource = devTypeC.DevTypeList;
wrapTreeViewItemForDrag(devTypeC);
}
/// <summary>
/// 在元素已布局、已呈现且可用于交互时发生的事件函数。
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void UserControl_Loaded(object sender, RoutedEventArgs e)
{
try
{
bus.DeviceType[] deviceTypeArray = Application.Current.Properties["DeviceTypeArray"] as bus.DeviceType[];
if (deviceTypeArray == null)
throw new ApplicationException("当前Application缓存查找不到设备类型类表");
DevTypeCollection devTypeC = new DevTypeCollection();
devTypeC.initFromDataBusDevTypeArray(deviceTypeArray);
refreshTreeView(devTypeC);//初始化树拖曳功能
this.initDropCanvas();//初始化显示面板:将该用户已经监控的设备的对应图标放置在面板上
}
catch (Exception e1)
{
MessageBox.Show(e1.Message);
}
}
/// <summary>
/// 刷新所有数据
/// </summary>
public void refreshData()
{
string userID = Application.Current.Properties["userID"] as string;
bus.DataBusServiceClient dataBusServiceClient = new bus.DataBusServiceClient();
try
{
DataBus dataBus1 = new DataBus();
dataBus1.fillDataBusByRemoteService(dataBusServiceClient,userID);
//this.dataBus = dataBus1;
Application.Current.Properties["DataBus"] = dataBus1;
bus.DeviceType[] deviceTypeArray=dataBusServiceClient.QueryAllDeviceTypeInfo();
Application.Current.Properties["DeviceTypeArray"] = deviceTypeArray;
DevTypeCollection devTypeC=new DevTypeCollection();
devTypeC.initFromDataBusDevTypeArray(deviceTypeArray);
refreshTreeView(devTypeC);
}
catch (Exception exp)
{
MessageBox.Show(exp.Message);
return;
}
finally
{
if (dataBusServiceClient != null)
dataBusServiceClient.Close();
dataBusServiceClient = null;
}
}