Window1.xaml

<Window x:Class="VirtualGrid.Window1"
                             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                             xmlns:Interactivity="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
                             xmlns:syncfusion="http://schemas.syncfusion.com/wpf"
        xmlns:virtualgrid="clr-namespace:VirtualGrid"
        Icon="App.ico" 
                             >
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <ScrollViewer CanContentScroll="True" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
            <virtualgrid:ExcelGrid x:Name="grid" syncfusion:GridTooltipService.ShowTooltips="True"/>
        </ScrollViewer>
    </Grid>
</Window>