Q: How does one change title bar image in WPF Window? How does one change the titile bar image (the top-left most icon) in WPF?

A: <Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="SDKSample.MainWindow"
Icon="WPFIcon1.ico">
</Window>

or in code
// Set an icon using code
Uri iconUri = new Uri("pack://application:,,,/WPFIcon2.ico", UriKind.RelativeOrAbsolute);
this.Icon = BitmapFrame.Create(iconUri);

Source: Window.Icon Property

A: The Icon attribute of Window is used to set Icon of a window.
<Window x:Class="WindowSample.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Title="WPF Window Sample" Height="350" Width="525"

Name="FirstWindow" Icon="Icon1.ico" >

The Icon property of Window class represents a window's icon at run-time. This property takes an ImageSource variable.
The following code snippet uses BitmapFrame.Create method to create an ImageSource and sets the Icon property of a Window.
Uri iconUri = new Uri("pack://application:,,,/Icon1.ico", UriKind.RelativeOrAbsolute);

this.Icon = BitmapFrame.Create(iconUri);

You can read more from here

A: This one worked for me (using Visual Studio 2017)


*

*Select menu Project/[yourprojectname] Properties

*Click Application tab (its the first one on top)

*Here you can browse for Icon, and it will be copied to your project


A: *

*Add ico file to project Resources and check as Embedded Resource

*Set Project->Properties->Icon and choose from Resources

*Run Project in Release Mode or start without debugging.


A: Easy way to add image to title bar:
In your Project,
 Select - Properties - Application - Resources - Icon and Manifest - select the .ico image(always convert your image to .ico)
Add this line(icon) in WPF Main window: 
Title="xxxxx" **Icon="xxxxxx.ico"**>


A:  <Window Icon="youricon.ico"></Window>

