Changing the image of the pictureBox in the code - c#

In my project on WindowsForms (VS13) I have a pictureBox. How can I change the image of it in the code?
pictureBox1.Image = //???
For example, for the the textBox I can do it like:
richTextBox1.Text = someVariable.ToString();
The image are exists in my project's folder.


If you add the picture to you projects resources you can change the image like this
pictureBox1.Image = Properties.Resources.picture1;
Hope this helps


The .Image property set a image as object, you can specify the path o url of the image with ImageLocation
pictureBox1.ImageLocation = "PATH O URL OF THE IMAGE";

Related

.PNG Images Accepted by PictureBox in C#?

I am attempting to add a .PNG image to a PictureBox, but it does not seem to be reading it.
public static String NoteImage_path = Environment.CurrentDirectory + #"\Notes-Images\";
ImageLocation = NoteImage_path + "test" + ".png";
With this exact code, I had no issues adding a .BMP file, so why is there an issue with the .PNG file?
Any help will be appreciated. Thanks!

Add PictureBox on the form
List item
Browse Image property
Resource Context
Import button
Chose Png file.
You can do it by code.
pictureBox1.Load(#"C:\Mine\download.png");

WPF Adding images to canvas without them being added as resources

I am trying to add Images to my WPF application Canvas.
From what I understand, they need to be referenced as Resource in the VS Solution.
However, I need to be able to copy an image into a folder, and from an XML file the relative Uri of the image is parsed, and the image is loaded into the canvas :
Image image = new Image();
var pic = new BitmapImage();
pic.BeginInit();
pic.UriSource = new Uri(url, UriKind.Relative); // url is from the xml
pic.EndInit();
image.Source = pic;
LayoutRoot.Children.Add(image); //since the image is not in VS marked as Resource,
// nothing shows up
Thank you for your kind advices

If you specify the full path for the URI instead of using a UriKind.Relative uri, it will work properly:
pic.BeginInit();
pic.UriSource = new Uri(#"C:\Path\To\File.jpg");
pic.EndInit();

c# Image from file close connection

I display an image using c# in a pictureBox. Then I want to change the image's name. I can't because I get that the image is being used by another process.
I open the image this way
Image image1 = Image.FromFile("IMAGE LOCATION"); ;
pictureBox1.Image = image1;
Then try to change it's name this way and I get an IO exception saying " The process cannot access the file because it's being used by another process.
System.IO.File.Copy(#"OldName", #"NewName"); //copy changes name if paths are in the same folder
Isn't the object image1 holding the image? Why is the file still locked by the previous process? Any suggestions would be appreciated. Many thanks!

Have a look at this question: Free file locked by new Bitmap(filePath)
To free the lock you need to make a copy of the bits:
Image img;
using (var bmpTemp = new Bitmap("image_file_path"))
{
img = new Bitmap(bmpTemp);
}

Yes, picture box control locking IO file on the disk in that way.
If you want to rename linked file, you can:
or dispose picture box, and after rename the file (if this is suitable for your app)
or assign to the picture box a copy/clone of the image.

You can try this:
Image image1 = null;
using(FileStream stream = new FileStream("IMAGE LOCATION", FileMode.Open))
{
image1 = Image.FromStream(stream);
}
pictureBox1.Image = image1
;

you need to dispose your image:
Image image1 = Image.FromFile("IMAGE LOCATION"); ;
pictureBox1.Image = image1;
image1.Dispose();
the do the move.

this solution solved my problem. I was using a picturebox and loading its image directly from the disk without an intermediate image file. when I was done I was doing a "picturebox.dispose" and that did not free up the image file and I couldn't delete it because "file in use by vshost". I had to explicitly create an image variable (IE dim MyImage as image) and then first load the image into the image variable, then load MyImage into the picturebox. by having a reference to the image I could do a MyImage.dispose. That closed the link between vshost and the image and I was able to programmatically delete it.

How to change image location

I'm developing WPF with C# and I have this code to get the picture angry.png from the smiles folder in the output folder (e.g. bin\debug):
BitmapImage bitmap = new BitmapImage(
new Uri(#"smiles/angry.png",
UriKind.RelativeOrAbsolute));
But I want to get the picture angry.png from another location like Resources\Image\smiles\angry.png. Could you tell me how to change the folder location so that this would work?

In that case ..\..\Resources\Image\smiles\angry.png should be sufficient.

Rotateflip image adding to image?

I have an image in a picture box, and when I do this in my code:
pictureBox1.Image.RotateFlip(RotateFlipType.Rotate180FlipX);
The image has a black box on the right side of the picture box?

Hard to repro. For one, the PictureBox control has no idea that the image was changed, it won't even repaint it. At least do it like this so it knows:
var img = pictureBox1.Image;
img.RotateFlip(RotateFlipType.Rotate180FlipX);
pictureBox1.Image = img;

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