Develop Reference

Xamarin Forms Load image from folder inside project

I have a problem. I am trying to save an Image to a folder in my project (not the Resources folder!) and load theimage from that folder into an Image holder as source. I want the image to be saved in a folder called: TempImages and my app name is MyApp. Here is the code I have now:
Saving:
using (var image = args.Surface.Snapshot())
using (var data = image.Encode(SKEncodedImageFormat.Png, 80))
using (var stream = File.OpenWrite(Path.Combine("MyApp.TempImages", "CreatedImage.png")))
{
data.SaveTo(stream);
}
Opening:
string resourceID = string.Format("MyApp.TempImages.CreatedImage.png");
Assembly assembly = GetType().GetTypeInfo().Assembly;
Stream stream = assembly.GetManifestResourceStream(resourceID);
imgCanvas.Source = ImageSource.FromFile(resourceID);
But I think that File.OpenWrite a local file on my pc means, but I am not sure. And therefore I am not sure if I am opening the file correctly. Now I get the error that the save path doesn't exist.
How can I fix this?

you should be able to create any folder structure you want within one of the app writeable paths
var path = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
var folder = Path.Combine(path,"MySpecialFolder");
Directory.CreateDirectory(folder);
var file = Path.Combine(folder,"MyImage.png");
File.WriteAllBytes(file,data);
var image = File.ReadAllBytes(file);

Add downloaded images to resource folder

I have downloaded an image with the following code:
bool pageExists = false;
// Check if webpage exists
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://image.tmdb.org/t/p/w780" + imagePath);
request.Method = WebRequestMethods.Http.Head;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
pageExists = response.StatusCode == HttpStatusCode.OK;
}
// Download image
if (pageExists)
{
string localFilename = #"C:\Users\Giri\Desktop\giri" + id + ".jpg";
using (WebClient client = new WebClient())
{
client.DownloadFile("http://image.tmdb.org/t/p/w780" + imagePath, localFilename);
}
}
For now, I have just been saving this image on my Desktop.
My question is how do I go about storing this image in my WPF application programmatically within a resources folder or a folder I have generated myself? The images should persist in that the next time the application is run, the added images should remain.
Is there an accepted place I should be storing my images?
Thanks for your help.

Please use AppDomain.CurrentDomain.BaseDirectory. Which will give you the directory of your executable. Even in deployed code this should give you the right value. But other values like Environment.CurrentDirectory can give different value based on from where you are calling it etc.
See this question Best way to get application folder path

Saving images to a project folder in asp.net/c#

In my method, I'm trying to save an image in a folder in the directory of my project. I have tried just putting the direct filepath of the folder, but that gives me an error when the project runs.
Is there a built-in extension of some kind in c# that would allow me to save this image in a folder in my directory; or way to simply access my directory without drilling to where my project is saved on my computer?
private void CreateBarcode()
{
var bitmapImage = new Bitmap(500,300);
var g = Graphics.FromImage(bitmapImage);
g.Clear(Color.White);
UPCbarcode barcode = new UPCbarcode(UPCbarcode.RandomGeneratedNumber(), bitmapImage, g);
string filepath=#"images/image1.jpg";
bitmapImage.Save(filepath,System.Drawing.Imaging.ImageFormat.Jpeg);
}

You can always use the AppData folder,
string path = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)

Assuming the "Image" folder is in the root directory of your Project use:
Server.MapPath("~/Image" + filename)
you can check if the file already exist at a location by :
if (!File.Exists(filePath))
{
// Your code to save the file
}

I can guess that there is similarity in the name of the image file
try putting it under a different name
like
string filepath = # "images / blabla or AI.jpg";

Use this
string filepath= Application.StartupPath + "\images\image1.jpg";
bitmapImage.Save(filepath,System.Drawing.Imaging.ImageFormat.Jpeg);

MODI Document Create path

I am currently working in an OCR reader using MODI dll and my code is like
MODI.Document md = new MODI.Document();
//image path
string fileToOCR="C:\\temp\\1in.jpg";
md.Create(fileToOCR);
md.OCR(MODI.MiLANGUAGES.miLANG_ENGLISH, true, true);
MODI.Image img = (MODI.Image)md.Images[0];
MODI.Layout layout = img.Layout;
layout = img.Layout;
string result = layout.Text;
md.Close(false);
And I want to use
//image path
string fileToOCR="C:\\temp\\1in.jpg";
to
//image path
string fileToOCR="http://example.com/image.png";
How this possible, please help me.

MODI needs a local file to work on. You can use WebClient.DownloadData (see http://msdn.microsoft.com/en-us/library/xz398a3f.aspx) to get the data, then save it locally.

Creating Images from an Embedded Resource

This has been driving me crazy for the past 2 days, and anything close that I find just does not seem to work in my situation, perhaps someone can point out what I'm doing wrong.
I have a WPF project to which I've include a fairly large number of images(80ish). I've added them to the project into a folder called "Images". They are currently set to be embedded resources(though I've tried regular resources as well) but nothing seems to work.
I am attempting to create and load an ArrayList of type Image using these files as the source, but I'm failing pretty bad.
private void addPicture(string name)
{
string filePath = "pack://MyApp_WPF:,,,/Images/" + name + ".png";
Stream imageStream = assembly.GetManifestResourceStream(filePath);
Image curImage = new Image();
BitmapImage bmpImage = new BitmapImage();
bmpImage.BeginInit();
bmpImage.UriSource = new Uri(filePath, UriKind.Relative);
bmpImage.EndInit();
curImage.Height = 60;
curImage.Stretch = Stretch.Uniform;
curImage.Source = bmpImage;
curImage.Margin = new Thickness(5);
imageList.Add(curImage);
}
It was much easier to do in my windows form application, but I just cant figure it out with WPF... Any help besides links to resources would be nice, because chances are at this point I've already read them.

First thing to note is that there is an DownloadError event that you ought to subscribe to, this might explain what is happening and why (though sometimes the error message is rather generic); the next is that you might not need the pack:// URI construct with images build actions of Resource:
var bmpImage = new BitmapImage(new Uri(
string.Format("/Images/{0}.png", name", UriKind.Relative));

The Pack URI is wrong, where you name your assembly you should place an authority, in this case application, i.e.
string filePath = "pack://application:,,,/Images/" + name + ".png";