# Multi-Selection Mode

## Content

MultiSelect provides [SelectionMode](/componentone/api/wpf/online-multiselect/dotnet-framework-api/C1.WPF.Input.4.6.2/C1.WPF.Input.C1MultiSelect.SelectionMode.html) property to determine whether you can select one or more than one item from the header. This property lets you choose between the following selection modes through [SelectionMode](/componentone/api/wpf/online-multiselect/dotnet-framework-api/C1.WPF.Input.4.6.2/C1.WPF.Input.C1MultiSelect.SelectionMode.html) enumeration:

* **Single**: Allows you to select only one item at a time.
* **Multiple**: Allows you to select multiple items without holding down a modifier key.
* **Extended**: Allows you to select multiple consecutive items while holding down the corresponding modifier key.

To set the selection mode to single, use the following code:

```vbnet
mselect.SelectionMode = SelectionMode.Single
```

```csharp
mselect.SelectionMode = SelectionMode.Single;
```