This question already has answers here:
WPF - Import image as resource
(3 answers)
How do I change an image source dynamically from code-behind in WPF with an image in Properties.Resources?
(1 answer)
Closed 3 years ago.
I would like to use path to image from program resources instead of using full path from windows.
tlo.Fill = new ImageBrush
{
ImageSource = new BitmapImage(new Uri(#"D:\Willie\Documents\ColorTester\ColorTester\Resources\1.jpg", UriKind.Absolute))
};
I want to use path like this:
ImageSource = new BitmapImage(new Uri("ColorTester.Resources.1.jpg"));
Can anyone help me with this, because when I try to use it, visual studio throws and exception "System.UriFormatException"?
I don't know the correct path to your image, if you have a folder named Resources under your project and images are in there, you can address them like below:
ImageSource = new BitmapImage(new Uri("/Resources/1.jpg", UriKind.Relative));
If the image is inside a UserControl and you want to use it in another project, then address it like:
ImageSource = new BitmapImage(new Uri("pack://application:,,,/{YourAssemblyWhereResourceIsLocated};component/Resources/1.jpg"));
Useful links:
WPF image resources
Adding resource dictionaries to a usercontrol library in wpf
https://learn.microsoft.com/en-us/dotnet/framework/wpf/app-development/pack-uris-in-wpf
Related
This question already has answers here:
How to load image to WPF in runtime?
(2 answers)
Closed 5 years ago.
I am working on WPF for interactive applications. When I assign image path to ImageBrush (Canvas) from folder included in solution, its not working, it goes to bin/debug/.. in WPF. But it worked perfectly, when I assign path from directory. Following is the screenshot for issue:
screenshot
Following is the code snippet I have written which is not working:
ImageBrush myBrush = imgContent1;
myBrush.ImageSource = new BitmapImage(new Uri(#"Informatin_Concept_100.jpg", UriKind.Relative));
canContent1Info.Background = myBrush;
But following code snippet work when I am assigning images from directory:
C = new System.IO.DirectoryInfo(Environment.CurrentDirectory).Parent.Parent.FullName;
imgContent1.ImageSource = new BitmapImage(new Uri(C + "\\" + "Content1\\Default\\Informatin_Concept_100.jpg", UriKind.Absolute));
Can't figure out where is the error?
Use a WPF Resource File Pack URI to load a BitmapImage from an assembly resource. The Build Action of the image file in your Visual Studio project must be set to Resource.
myBrush.ImageSource = new BitmapImage(
new Uri("pack://application:,,,/Informatin_Concept_100.jpg"));
I'm having a little issue here in showing images.
So when I'm trying to load images from XAML, I can use a relative uri to the image source like this :
<Image Source="/Assets/image.jpg" />
But if I try to change the image source programatically from code behind, I always get an exception and I'm sure it's because of the false Uri. I tried something like this :
BitmapImage bitmapImage = new BitmapImage(new Uri("/Assets/image.jpg"));
Am I doing it wrong? Any help will be appreciated, thanks!
You can also use it with BaseUri.
BitmapImage bitmapImage = new BitmapImage(new Uri(this.BaseUri, "/Assets/image.jpg"));
Assets is a folder name and you can change it with your any custom folder name :)
To access files stored inside the application package, but from code where there is no inferred root authority, you need to specify the ms-appx: scheme :
So in your case it will be something like :
BitmapImage bitmapImage =
new BitmapImage(new Uri("ms-appx:///[project-name]/Assets/image.jpg"));
Read this documentation for more details : https://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh965322.aspx
Hope it helps.
I believe WPF is more forgiving and paths like "Assets/image.png" are possible. If you are writing a UWA (win 10) app then you need to use the "ms-appx" URI's.
My experience is "ms-appx:///Assets/image.png" works fine.
Yes, three "/"s (!) and no need for the name of the app in the path.
Image img = new Image();
img.Source = new BitmapImage(new Uri("http://www.contoso.com/images/logo.png"));
Just use it like this
<Image Source="Assets/image.jpg" />
When I want to change an image's source, the image simply disappears.
The code I'm using:
tactImg.Source=tactImgList[i];
tactImgList = new BitmapImage[32];
tactImgList[0] = new BitmapImage(new Uri("ms-appx:///Assets/Images/1.png", UriKind.Absolute));
What am I doing wrong? Is there something I need to add to an xaml file or I'm making the global array wrong?
You don't need to use ms-appx in Windows Phone 8 projects , it's for WinRT projects.
Make sure your image's Build type is Content , remove the ms-appx part and since your image has relative uri , set your UriKind to Relative.
First, fill in the data, and then change the source.
tactImgList = new BitmapImage[32];
tactImgList[0] = new BitmapImage(new Uri("ms-appx:///Assets/Images/1.png", UriKind.Absolute));
tactImg.Source=tactImgList[i];
Or use ObservableCollection for storing images.
I want to change the background of a button manually in my WPF app.
I have an image imported into my resources and I want to do:
MyButton.Background = MyProject.Properties.Resources.myImage;
But I get the error:
cannot implicitly convert system.drawing.bitmap to media.brush
How can I do this??
You should read about brushes first here.
And then use ImageBrush, something like this:
MyButton.Background = new ImageBrush(...);
(or, maybe, put the brush into resources...)
UPDATE
You can find how to create imageSource from bitmap easilly. for example, here. Like:
var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(MyProject.Properties.Resources.myImage.GetHbitmap(),
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
MyButton.Background = new ImageBrush(bitmapSource);
In a WPF application, you do usually not add image resources as you did in WinForms.
Instead you add the image file directly to your Visual Studio project, just like any other file. If there are multiple images, it may make sense to put them in a subfolder of the project (e.g. called "images"). The Build Action of that file has to be set to Resource (which is the default for image files).
Now you can create a BitmapImage from a Pack URI to that file.
Finally you create an ImageBrush from the BitmapImage to set the Background property.
var uri = new Uri("pack://application:,,,/images/myImage.jpg");
var image = new BitmapImage(uri);
MyButton.Background = new ImageBrush(image);
There are numerous questions and answers regarding setting image source in code behind, such as this Setting WPF image source in code.
I have followed all these steps and yet not able to set an image. I code in WPF C# in VS2010. I have all my image files under a folder named "Images" and all the image files are set to Copy always. And Build Action is set to Resource, as instructed from documentation.
My code is as follow. I set a dog.png in XAML and change it to cat.png in code behind.
// my XAML
<Image x:Name="imgAnimal" Source="Images/dog.png" />
// my C#
BitmapImage img = new BitmapImage();
img.UriSource = new Uri(#"pack://application:,,,/FooApplication;component/Images/cat.png");
imgAnimal.Source = img;
Then I get a empty, blank image of emptiness. I do not understand why .NET makes setting an image so complicated..w
[EDIT]
So the following works
imgAnimal.Source = new BitmapImage(new Uri(#"pack://application:,,,/FooApplication;component/Images/cat.png"));
It works, but I do not see any difference between the two code. Why the earlier doesn't work and the latter does? To me they are the same..
Try following:
imgAnimal.Source = new BitmapImage(new Uri("/FooApplication;component/Images/cat.png", UriKind.Relative));
Default UriKind is Absolute, you should rather use Relative one.
[EDIT]
Use BeginInit and EndInit:
BitmapImage img = new BitmapImage();
img.BeginInit();
img.UriSource = new Uri(#"pack://application:,,,/FooApplication;component/Images/cat.png");
img.EndInit();
imgAnimal.Source = img;