You can put the GridControl into a ScrollViewer.
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:sfScroll="clr-namespace:Syncfusion.Windows.Controls.Scroll;assembly=Syncfusion.GridCommon.Wpf"
xmlns:sf="http://schemas.syncfusion.com/wpf"
Title="Window1" Height="300" Width="300">