When u use a .PNG icon, you can drag this on the button. But we are going to draw a little magnifying glass icon with Expression Blend.
A DataTemplate resource has been created in the UserControl.Resources collection.
And that’s it! Apply this datatemplate to the ContentTemplate of other buttons to re-use the vector drawing:
This resource was created in the UserControl
MainPage.xaml. It’s a better idea to create the resource in a separate resource file like Visuals.xaml but that depends on your preferences.