[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
   Getting Started
  [Expand]Grid View
  [Collapse]Tree List
   [Expand]Product Information
   [Expand]Visual Elements
   [Collapse]Member Tables
     Member Table: Columns
     Member Table: Customization Window
     Member Table: Data Editing
     Member Table: Data Paging
     Member Table: Data Summary
     Member Table: Filtering
     Member Table: Focused Node
     Member Table: Nodes
     Member Table: Selection
     Member Table: Sorting
     Member Table: Templates
  [Expand]Card View
  [Expand]Chart Control
  [Expand]Pivot Grid
  [Expand]Rich Text Editor
  [Expand]Site Navigation and Layout
  [Expand]HTML Editor
  [Expand]Vertical Grid
  [Expand]Data Editors
  [Expand]Docking and Popups
  [Expand]File Management
  [Expand]Data and Image Navigation
  [Expand]Multi-Use Site Controls
  [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]Office File API
[Expand]Report and Dashboard Server
[Expand]eXpressApp Framework
[Expand]eXpress Persistent Objects
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

Member Table: Columns

Expanded Server

Member Description
ASPxTreeList.Columns Provides access to the ASPxTreeList's column collection.
ASPxTreeList.VisibleColumns Provides access to the collection of visible columns within the ASPxTreeList.
ASPxTreeList.AutoGenerateColumns Specifies whether columns are automatically created for all fields in the underlying data source.
ASPxTreeList.AutoGenerateServiceColumns Specifies whether columns are automatically created for service fields in the underlying data source (ASPxTreeList.KeyFieldName, ASPxTreeList.ParentFieldName).

Expanded Client

Member Description
ASPxClientTreeList.GetColumnByFieldName Returns the client column which is bound to the specified data source field.
ASPxClientTreeList.GetColumnByName Returns the column with the specified name.
ASPxClientTreeList.GetColumnByIndex Returns the column contained at the specified position within the collection.
ASPxClientTreeList.GetColumnCount Returns the number of columns contained within the client ASPxTreeList.

Is this topic helpful?​​​​​​​