37 lines
1.3 KiB
Markdown
37 lines
1.3 KiB
Markdown
## onSelect
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### Description
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The `onSelect` event is triggered when a node within a Treeview object is clicked or selected by the user. This event allows you to define custom behavior or actions that should be executed when the node is selected.
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### Parameters
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1. `function` The callback function that will be executed when the node is selected. This function receives one argument:
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* `node`: The node that was selected.
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### Returns
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1. `node` The node in use
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### Usage
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* Creates a Treeview, adds a child node to the root node, and checks if the root node is expanded:
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```lua
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local basalt = require("basalt")
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local mainFrame = basalt.createFrame()
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local treeview = mainFrame:addTreeview()
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local rootNode = treeview:getRoot()
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local childNode = rootNode.addChild("Child Node")
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childNode.onSelect(function(node)
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basalt.debug("Node selected:", node.getText())
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end)
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basalt.autoUpdate()
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```
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In this example, a Treeview object is created and added to the mainFrame. The `getRoot` method is used to access the root node, and a new child node is added to it using the `addChild` method. The `onSelect` event is then assigned to the child node with a callback function that will display the text of the selected node using `basalt.debug` when the node is clicked or selected.
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