Change WPF window background image in C code

Question

I have a couple of Images configured as application resources   When my application starts  the background of the main window is set via XAML    lt Window Background gt       lt ImageBrush ImageSource   myapp component Images icon png    gt   lt  Window Background gt    If a given event occurs  I d like to change this background to another resource    myapp component Images icon gray png     I ve tried using two constants   private static readonly ImageBrush ENABLED BACKGROUND       new ImageBrush new BitmapImage new Uri   myapp component Images icon png      private static readonly ImageBrush DISABLED BACKGROUND       new ImageBrush new BitmapImage new Uri   myapp component Images icon gray png            but naturally  I get an exception with Invalid URI   Is there a simple way to change the background image  via this Background        of a WPF window using either the pack Uri or the resource  i e   Myapp Properties Resources icon

User · Answer

The problem is the way you are using it in code. Just try the below code

public partial class MainView : Window
{
    public MainView()
    {
        InitializeComponent();

        ImageBrush myBrush = new ImageBrush();
        myBrush.ImageSource =
            new BitmapImage(new Uri("pack://application:,,,/icon.jpg", UriKind.Absolute));
        this.Background = myBrush;
    }
}

You can find more details regarding this in
http://msdn.microsoft.com/en-us/library/aa970069.aspx

User · Answer

What about this   new ImageBrush new BitmapImage new Uri BaseUriHelper GetBaseUri this    Images icon png       or alternatively  this   this Background   new ImageBrush new BitmapImage new Uri   pack   application     myapp component Images icon png

User · Answer

Uri resourceUri   new Uri    cCleaner component Images cleanerblack png   UriKind Relative               StreamResourceInfo streamInfo   Application GetResourceStream resourceUri               BitmapFrame temp   BitmapFrame Create streamInfo Stream               var brush   new ImageBrush                brush ImageSource   temp              frame8 Background   brush

User · Answer

I have been trying all the answers here with no success  Here is the simplest way to do it with ms-appx          ImageBrush myBrush   new ImageBrush            Image image   new Image            image Source   new BitmapImage new Uri   ms-appx    Assets background jpg             myBrush ImageSource   image Source          TheGrid Background   myBrush    Assets folder is in the first level of my project  so make sure to change the path as convenient

User · Answer

i just place one image in   d drive-- Data-- IMG   The image name is x jpg   And on c  code type  ImageBrush myBrush   new ImageBrush     myBrush ImageSource   new BitmapImage new Uri BaseUriHelper GetBaseUri this    D   Data  IMG  x jpg        please put double slash in between path   this Background   myBrush    finally i got the background

User · Answer

img UriSource   new Uri  pack   application     images     fileName  UriKind Absolute

User · Answer

Here the XAML Version   lt Window Background gt       lt ImageBrush gt           lt ImageBrush ImageSource gt               lt BitmapImage UriSource    your source      gt           lt  ImageBrush ImageSource gt       lt  ImageBrush gt   lt  Window Background gt

[c#] Change WPF window background image in C# code

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