load an image from resources in Visual C#, using a string?

Question

If I have some resources, eg card1.png, card2.png, etc, I want to them load them into a picBox, but only load the correct image eg, something like

int cardNum = rn.Next(0,cardMax);
picCard.Image = Properties.Resources."card"+cardNum+".png";

Obviously that doesn't work, but how would I do what I am trying to do (load the correct resource after building the resource name into a string)

Possible duplicate of How to get Name by string Value from a .NET resource (RESX) file — Andrey Korneyev
– Andrey Korneyev, Commented Jun 29, 2016 at 8:22
@AndyKorneyev That's about finding a resource's key by matching its content, not loading by name. — Richard
– Richard, Commented Jun 29, 2016 at 8:26
Open Resources.Designer.resx and you see exactly how they are looked up by string name. — Nyerguds
– Nyerguds, Commented Jun 29, 2016 at 8:27
Note that when adding something to the resources, the extension is generally stripped off. While it's technically allowed, the dot character is deemed a "bad character" in resource names. — Nyerguds
– Nyerguds, Commented Jun 29, 2016 at 8:30

György Kőszeg · Accepted Answer · 2016-06-29 08:33:31Z

2

Instead of the generated properties in the Resources class use the ResourceManager directly:

string resName = $"card{cardNum}.png"; // Check the correct name in the .resx file. By using the wizards the extension is omitted, for example.
picCard.Image = (Image)Properties.Resources.ResourceManager.GetObject(resName);

edited Jun 29, 2016 at 8:33

answered Jun 29, 2016 at 8:28

György Kőszeg

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1 Comment

A.bakker Over a year ago

10th answer i found, first one that worked for me xD

user6438653 · Accepted Answer · 2016-06-29 08:27:40Z

0

Try using:

var rm = new System.Resources.ResourceManager(((System.Reflection.Assembly)System.Reflection.Assembly.GetExecutingAssembly()).GetName().Name + ".Properties.Resources", ((System.Reflection.Assembly)System.Reflection.Assembly.GetExecutingAssembly()));
Image img = (Bitmap)rm.GetObject("resourcesimagename.jpg");

answered Jun 29, 2016 at 8:27

user6438653

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