void loadPoints(List <string> parentPath, ItemCollection nodes)
{
Task.Run(() => {
try
{
gatewayClient.EnumDevicePoint(this.Device.Address, parentPath, (info) =>
{
this._container.Dispatcher.Invoke(() => {
if (nodes[0] is LoadingTreeItem)
{
nodes.Clear();
}
TreeViewItem node = new TreeViewItem();
node.Header = info.Name;
if (info.IsFolder)
{
LoadingTreeItem loadingNode = new LoadingTreeItem();
loadingNode.Header = "正在加载...";
node.Items.Add(loadingNode);
var path = new List <string>(parentPath);
path.Add(info.Name);
node.Tag = path;
node.Expanded += Node_Expanded;
}
else
{
node.Tag = info.Path;
node.PreviewMouseDown += Point_MouseDown;
}
nodes.Add(node);
});
});
if (nodes[0] is LoadingTreeItem)
{
this._container.Dispatcher.Invoke(() => {
nodes.Clear();
});
}
}
catch (Exception ex)
{
this._container.Dispatcher.Invoke(() => {
MessageBox.Show(MainWindow.Instance, ex.Message);
});
}
});
}
/// <summary>
/// 显示设备点选择控件
/// </summary>
/// <param name="btn"></param>
void showPointSelector(Button btn)
{
if (_popup == null)
{
TreeView treeview = new TreeView();
treeview.Width = 300;
treeview.Height = 500;
treeview.Background = System.Windows.Media.Brushes.AliceBlue;
LoadingTreeItem loadingNode = new LoadingTreeItem();
loadingNode.Header = "正在加载...";
treeview.Items.Add(loadingNode);
loadPoints(new List <string>(), treeview.Items);
_popup = new Popup();
_popup.PlacementTarget = btn;
_popup.Placement = PlacementMode.Right;
_popup.Child = treeview;
_popup.StaysOpen = false;
}
_popup.IsOpen = true;
}
