# Check a Single Node in TreeView
The TreeView lets the user check a single node at a time based on the value of its `CheckBoxMode` parameter.
This article is separated in the following sections:
* [Basics](https://www.telerik.com/blazor-ui/documentation/components/treeview/checkboxes/single#basics)
* [Examples](https://www.telerik.com/blazor-ui/documentation/components/treeview/checkboxes/single#examples)
* [Checking a single node using one-way data binding](https://www.telerik.com/blazor-ui/documentation/components/treeview/checkboxes/single#checking-a-single-node-using-one-way-data-binding)
* [Checking a single node using two-way data binding](https://www.telerik.com/blazor-ui/documentation/components/treeview/checkboxes/single#checking-a-single-node-using-two-way-data-binding)
## Basics
To let the user check only a **single** node in the TreeView, set the `CheckBoxMode` parameter to `Telerik.Blazor.Components.TreeViewCheckBoxMode.Single`.
## Examples
This section contains the following examples:
* [One-way binding](https://www.telerik.com/blazor-ui/documentation/components/treeview/checkboxes/single#checking-a-single-node-using-one-way-data-binding)
* [Two-way binding](https://www.telerik.com/blazor-ui/documentation/components/treeview/checkboxes/single#checking-a-single-node-using-two-way-data-binding)
### Checking a single node using one-way data binding
You can use one-way binding to provide an initial checked node, and respond to the `CheckedItemsChanged` to update the view-model when user checks a node.
### Checking a single node using two-way data binding
You can use two-way binding to get the node the user has checked. This can be useful if the node model already contains all the information you need to use. It also reduces the amount of code you need to write.
## See Also
* [Selection Overview](https://www.telerik.com/blazor-ui/documentation/components/treeview/checkboxes/overview)
* [Multiple Selection](https://www.telerik.com/blazor-ui/documentation/components/treeview/checkboxes/multiple)