TreeViewExtensions

Namespace: Wisej.Web.Markup

Assembly: Wisej.Framework (4.0.0.0)

Adds fluent markup extension methods to the TreeView class.

public class TreeViewExtensions

Public Class TreeViewExtensions

Methods

Nodes<TTreeView>(treeView, nodes)

Adds an array of root nodes to the specified TreeView.

Returns: TTreeView. The tree view with the updated root nodes.

This method allows you to add multiple root nodes to a tree view control.

myTreeView.Nodes(new TreeNode("Root1"), new TreeNode("Root2"));

OnAfterCheck<TTreeView>(treeView, action)

Extension method to attach an action to the AfterCheck event of a TreeView.

Returns: TTreeView. The original TreeView instance with the event handler attached.

This method allows you to execute a custom action whenever a node in the TreeView is checked or unchecked.

treeView.OnAfterCheck((tv, e) => {
// Custom logic here
});

Extension method to attach an action to the AfterCollapse event of a TreeView.

Returns: TTreeView. The original TreeView instance with the event handler attached.

This method allows you to execute a custom action whenever a node in the TreeView is collapsed.

treeView.OnAfterCollapse((tv, e) => {
// Custom logic here
});

Attaches an action to be executed after a node is expanded in the TreeView.

Returns: TTreeView. The configured TreeView instance.

This method allows you to specify an action that will be executed after a node is expanded in the TreeView.

var treeView = new TreeView();
treeView.OnAfterExpand((tv, e) => { /* action */ });

Attaches an action to be executed after a node is selected in the TreeView.

Returns: TTreeView. The configured TreeView instance.

This method allows you to specify an action that will be executed after a node is selected in the TreeView.

var treeView = new TreeView();
treeView.OnAfterSelect((tv, e) => { /* action */ });

Extension method to attach an action to the BeforeCheck event of a TreeView.

Returns: TTreeView. The original TreeView instance with the event handler attached.

This method allows you to execute a custom action before a node in the TreeView is checked or unchecked.

treeView.OnBeforeCheck((tv, e) => {
// Custom logic here
});

Extension method to attach an action to the BeforeCollapse event of a TreeView.

Returns: TTreeView. The original TreeView instance with the event handler attached.

This method allows you to execute a custom action before a node in the TreeView is collapsed.

treeView.OnBeforeCollapse((tv, e) => {
// Custom logic here
});

Attaches an action to be executed before a node is expanded in the TreeView.

Returns: TTreeView. The configured TreeView instance.

This method allows you to specify an action that will be executed before a node is expanded in the TreeView.

var treeView = new TreeView();
treeView.OnBeforeExpand((tv, e) => { /* action */ });

Attaches an action to be executed before a node is selected in the TreeView.

Returns: TTreeView. The configured TreeView instance.

This method allows you to specify an action that will be executed before a node is selected in the TreeView.

var treeView = new TreeView();
treeView.OnBeforeSelect((tv, e) => { /* action */ });

Sets the loader visibility of the TreeView.

Returns: TTreeView. The configured TreeView instance.

This method allows you to show or hide a loader on a TreeView.

var treeView = new TreeView();
treeView.ShowLoader(true);

Sets the virtual scrolling capability of the TreeView.

Returns: TTreeView. The configured TreeView instance.

This method allows you to enable or disable virtual scrolling on a TreeView.

var treeView = new TreeView();
treeView.VirtualScroll(true);