Log In
[Expand]General Information
[Expand]WinForms Controls
[Collapse]ASP.NET Controls and MVC Extensions
 [Expand]What's Installed
 [Expand]Common Concepts
 [Collapse]ASP.NET WebForms Controls
  [Expand]Chart Control
  [Expand]Grid View
  [Expand]Card View
  [Expand]Vertical Grid
  [Expand]Rich Text Editor
  [Expand]Image and Data Browsing
  [Expand]Docking and Popups
  [Collapse]Site Navigation and Layout
   [Expand]Product Information
   [Expand]Form Layout
   [Expand]Navigation Bar
   [Expand]Page Control and Tab Control
    Panel Overview
   [Expand]Site Map Control
   [Expand]Tag Cloud Control
   [Expand]Title Index
     ASPxTreeView Overview
    [Collapse]Visual Elements
      Visual Elements Overview
      Node Image
      Tree Lines
      Expand Buttons
      Check Box
      Loading Panel
    [Expand]Member Tables
    [Expand]ASPxTreeView - Animated Images
  [Expand]File Management
  [Expand]Multi-Use Site Controls
  [Expand]HTML Editor
  [Expand]Pivot Grid
  [Expand]Tree List
  [Expand]Data Editors
  [Expand]Spell Checker
  [Expand]Query Builder
 [Expand]ASP.NET MVC Extensions
 [Expand]Redistribution and Deployment
  Get More Help
 [Expand]API Reference
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Expand]WPF Controls
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Document Server
[Expand]Report Server
[Expand]eXpressApp Framework
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation

Loading Panel

When the ASPxTreeView control's ASPxTreeView.AutoPostBack property is set to false, and the ASPxTreeView.EnableCallBacks property is set to true, the first expansion of a node initiates a callback to the server to obtain the node's child nodes. In this case, a specific Loading Panel is displayed for the child content of the node being expanded while waiting for a callback response.

Upon the TreeViewSettingsLoadingPanel.Mode property value, a loading panel can be displayed either at the center of ASPxTreeView (TreeViewLoadingPanelMode.ShowAsPopup) or near the expanding node (in place of the expand button) (TreeViewLoadingPanelMode.ShowNearNode).

ShowAsPopup ShowNearNode

The table below lists the main members that affect the appearance of a Loading Panel and the way in which it functions.

Expanded See Also

Is this topic helpful?​​​​​​​