TreeNodeExtensions

Wisej.Web.Markup.TreeNodeExtensions

Namespace: Wisej.Web.Markup

Assembly: Wisej.Framework (4.0.0.0)

Adds fluent markup extension methods to the TreeNode class.

C#

public class TreeNodeExtensions

VB.NET

Public Class TreeNodeExtensions

Methods

Checked<TTreeNode>(treeNode, value)

Sets the checked state of the tree node.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to set the checked state on.
value	Boolean	A boolean value indicating whether the node is checked.

Returns: TTreeNode. The modified tree node with the checked state set.

LazyLoading<TTreeNode>(treeNode, value)

Sets the lazy loading property of the tree node.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to set the lazy loading property on.
value	Boolean	A boolean value indicating whether lazy loading is enabled.

Returns: TTreeNode. The modified tree node with the lazy loading property set.

Nodes<TTreeNode>(treeNode, nodes)

Adds an array of child nodes to the specified TreeNode.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to which the child nodes will be added.
nodes	TreeNode[]	An array of tree nodes to be added as children.

Returns: TTreeNode. The tree node with the updated child nodes.

This method allows you to add multiple child nodes to a tree node in a tree view control.

myTreeNode.Nodes(new TreeNode("Child1"), new TreeNode("Child2"));

OnAfterCheck<TTreeNode>(treeNode, action)

Attaches an action to be executed after the tree node is checked.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to attach the action to.
action	Action<TTreeNode>	The action to execute after the node is checked.

Returns: TTreeNode. The tree node with the action attached.

This method allows you to perform custom logic after a tree node's checked state changes.

treeNode.OnAfterCheck(node => { /* custom logic */ });

OnAfterCollapse<TTreeNode>(treeNode, action)

Attaches an action to be executed after the tree node is collapsed.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to attach the action to.
action	Action<TTreeNode>	The action to execute after the node is collapsed.

Returns: TTreeNode. The tree node with the action attached.

This method allows you to perform custom logic after a tree node is collapsed.

treeNode.OnAfterCollapse(node => { /* custom logic */ });

OnAfterExpand<TTreeNode>(treeNode, action)

Attaches an action to be executed after the tree node is expanded.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to attach the action to.
action	Action<TTreeNode>	The action to execute after the node is expanded.

Returns: TTreeNode. The tree node with the action attached.

This method allows you to perform custom logic after a tree node is expanded.

treeNode.OnAfterExpand(node => { /* custom logic */ });

OnAfterSelect<TTreeNode>(treeNode, action)

Attaches an action to be executed after the tree node is selected.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to attach the action to.
action	Action<TTreeNode>	The action to execute after the node is selected.

Returns: TTreeNode. The tree node with the action attached.

This method allows you to perform custom logic after a tree node is selected.

treeNode.OnAfterSelect(node => { /* custom logic */ });

OnBeforeCheck<TTreeNode>(treeNode, action)

Attaches an action to be executed before the tree node is checked.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to attach the action to.
action	Action<TTreeNode, TreeViewCancelEventArgs>	The action to execute before the node is checked.

Returns: TTreeNode. The tree node with the action attached.

This method allows you to perform custom logic before a tree node's checked state changes.

treeNode.OnBeforeCheck((node, args) => { /* custom logic */ });

OnBeforeCollapse<TTreeNode>(treeNode, action)

Attaches an action to be executed before the tree node is collapsed.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to attach the action to.
action	Action<TTreeNode, TreeViewCancelEventArgs>	The action to execute before the node is collapsed.

Returns: TTreeNode. The tree node with the action attached.

This method allows you to perform custom logic before a tree node is collapsed.

treeNode.OnBeforeCollapse((node, args) => { /* custom logic */ });

OnBeforeExpand<TTreeNode>(treeNode, action)

Attaches an action to be executed before the tree node is expanded.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to attach the action to.
action	Action<TTreeNode, TreeViewCancelEventArgs>	The action to execute before the node is expanded.

Returns: TTreeNode. The tree node with the action attached.

This method allows you to perform custom logic before a tree node is expanded.

treeNode.OnBeforeExpand((node, args) => { /* custom logic */ });

OnBeforeSelect<TTreeNode>(treeNode, action)

Attaches an action to be executed before the tree node is selected.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to attach the action to.
action	Action<TTreeNode, TreeViewCancelEventArgs>	The action to execute before the node is selected.

Returns: TTreeNode. The tree node with the action attached.

This method allows you to perform custom logic before a tree node is selected.

treeNode.OnBeforeSelect((node, args) => { /* custom logic */ });

ShowLoader<TTreeNode>(treeNode, value)

Sets the show loader property of the tree node.

Parameter	Type	Description
TTreeNode		The type of the tree node, which must inherit from TreeNode.
treeNode	TTreeNode	The tree node to set the show loader property on.
value	Boolean	A boolean value indicating whether the loader should be shown.

Returns: TTreeNode. The modified tree node with the show loader property set.