Tree List Examples

• Jul 11, 2025
• 2 minutes to read

Data Binding

• How to: Create a Tree List control at Runtime
• How to: Create Nodes in Unbound Mode at Design Time
• How to: Create Nodes in Unbound Mode in Code
• How to: Implement Virtual Mode (Dynamic Loading) in Unbound Mode
• How to: Load Data Dynamically via Events
• How to: Create Calculated Columns (Expression Editor and XPView)

Nodes

• How to: Create custom nodes and specify height for individual nodes
• How to: Enable Automatic Height Adjustment
• How to: Iterate through nodes and calculate the number of nodes at a specific level
• How to: Iterate through nodes and collapse specific nodes
• How to: Dynamically Show and Hide Specific Nodes
• How to: Move nodes between TreeList controls using drag-and-drop
• How to: Save and Restore the Expanded State of Nodes
• How to: Copy Nodes from one TreeList to Another
• How to: Implement Custom Behavior to Check Nodes
• How to: Display Numbers within Node Indicator Cells
• How to: Display Node Checkboxes for a Specific Tree Level
• How to: Sync the Position of Child Nodes with the Position of Corresponding Records in the Data Source
• Asynchronous Node Loading

Data Editing

• How to: Assign an editor to a column
• How to: Assign editors to individual cells (replace default editors for specific cells)
• How to: Change a node’s image when in-place editors are activated and closed
• How to: Change values in a specific column for root nodes

Data Representation

• How to: Create a Band Layout in Code
• How to: Implement a File Manager (Drag & Drop Files and Folders)
• How to: Implement the Group Level Style Feature

Cell Values

• How to: Format a Column’s Numeric Values as Currency

Sorting

• How to: Implement custom sorting
• How to: Sort data
• How to: Traverse through sort columns

Summaries

• How to: Calculate a summary against groups of nodes
• How to: Calculate the sum against all nodes
• How to: Implement a custom summary

Appearance

• How to: Create a custom painter to override the way footers are painted
• How to: Custom draw cells
• How to: Custom paint column headers, summary footer, footer cells and indicator cells
• How to: Customize the appearance of individual cells
• How to: Customize the appearance of odd rows

Focus and Selection

• How to: Expand selected nodes
• How to: Focus a specific node
• How to: Prevent a specific node from being focused
• How to: Select a node’s children