how to set icon in DropDownmenuitem for SplitButon

//Code Explains how to set icon in DropDownmenuitem for SplitButon
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:syncfusion="http://schemas.syncfusion.com/wpf" x:Class="DropDownButton.MainWindow"
Title="MainWindow" Height="350" Width="525">
<Grid>
<syncfusion:SplitButtonAdv Name="DropDown" Width="150" Height="50" >
<syncfusion:DropDownMenuGroup >
<syncfusion:DropDownMenuItem Header="Item1"   >
<syncfusion:DropDownMenuItem.Icon>
<Image Name="syn" Width="50" Source=”Syncfusion.jpg"  ></Image>
</syncfusion:DropDownMenuItem.Icon>
</syncfusion:DropDownMenuItem>
<syncfusion:DropDownMenuItem Header="Item2">
<syncfusion:DropDownMenuItem.Icon>
<Image Name="sync1" Source="download.jpg" Width="50"></Image>                  </syncfusion:DropDownMenuItem.Icon>
</syncfusion:DropDownMenuItem>
</syncfusion:DropDownMenuGroup>
</syncfusion:SplitButtonAdv>
</Grid>
</Window>

//Code Explains how to set icon in DropDownmenuitem for SplitButon
namespace DropDownButton
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
BitmapImage bi3 = new BitmapImage();
bi3.BeginInit();
bi3.UriSource = new Uri("Syncfusion.png", UriKind.Relative);
bi3.EndInit();
syn.Source=bi3;
}
}
}