I am working on C# project i need to get the images from Images directory using relative path. I have tried
var path = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location) + #"\Images\logo.png";
var logoImage = new LinkedResource(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location)+#"\Images\logo.png")
But no luck with these...
I have made the images to be copied to output directory when the program is running but it doesn't pickup those images.
If you are using LinkedResource() in C# it is most likely not to pickup your relative URI or the file location.
You can use some extra piece of code
var outPutDirectory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase);
var logoimage = Path.Combine(outPutDirectory, "Images\\logo.png");
string relLogo = new Uri(logoimage).LocalPath;
var logoImage = new LinkedResource(relLogo)
Now it will pickup your relative path, convert this to absolute path in memory and it will help you get the images.
First, add those image file to your project (create an Image folder is a good idea)
Second, select the image in your solution manager, and view the property window.
And then, change the "copy to output folder" to "always" or "copy when update".
PS. My IDE is Trad. Chinese so I can not ensure the correct keywords in your language.
I would make sure that the Images directory is in the output folder.
I usually use Assembly.GetExecutingAssembly().Location to get the location of my dll.
However, for images, I usually use the Resources page/collection in the project's Properties page. Here is more information about it. Putting the image in the project's Resource would automatically give you an easy way to access it.
For more information about GetExecutingAssembly: MSDN Page
if u want to display images in your folder using your application use an array and put all pictures in ur folder into array. then you can go forward and backward.
string[] _PicList = null;
int current = 0;
_PicList = System.IO.Directory.GetFiles("C:\\Documents and Settings\\Hasanka\\
Desktop\\deaktop21052012\\UPEKA","*.jpg");
// "*.jpg" will select all
//pictures in your folder
String str= _PicList[current];
DisplayPicture(str);
private void DisplayPicture(string str)
{
//throw new NotImplementedException();
BitmapImage bi = new BitmapImage(new Uri(str));
imagePicutre.Source = bi; // im using Image in WPF
//if u r using windows form application it must be a PictureBox i think.
label1.Content = str;
}
Related
sorry im very new to unity and c#.
Im trying to read an image and apply it as a texture.
The code works when i try it with an image on my computer, however, when i try it with my android devices (phone and AR glasses), i've not been able to specify the file path correctly. How do i specify the file path properly of android devices or is there a way i can get these file path?
Thank you so much for any help in advance! :)
void Start()
{
thisTexture = new Texture2D(100, 100);
//string path = "C:/Users/kenny/Desktop/5th March/im.png"; //this works
string path = "file:///storage/emulated/0/im2.png"; // this doesnt work
bytes = File.ReadAllBytes(path);
thisTexture.LoadImage(bytes);
GetComponent<Renderer>().material.mainTexture = thisTexture;
}
For mobile devices it is not as straightforward to get a file from a plain path.
One way of doing so is by using the Resources folder. In your root folder (Assets), create a new folder named Resources. Put your image there.
Then you can do something like this:
// path without file extension!
var texture = Resources.Load<Texture2D>("path/to/texture");
You can get more references for this functionality here: https://forum.unity.com/threads/how-to-load-a-image-from-the-resources-folder-to-a-texture2d.101542/
Alternatively, you could use the StreamingAssets folder, but that's another story.
I am using the media plugin for xamarin forms (by james montemagno) and the actual taking of the picture and storing it works fine, I have debugged the creation of the image on the emulator and it is stored in
/storage/emulated/0/Android/data/{APPNAME}.Android/files/Pictures/{DIRECTORYNAME}/{IMAGENAME}
however in my app it will get a list of file names from an API I want to check if the image exists in that folder.
The following works fine on IOS
var documentsDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
string jpgFilename = System.IO.Path.Combine(documentsDirectory, App.IMAGE_FOLDER_NAME);
jpgFilename = System.IO.Path.Combine(jpgFilename, name);
I have tried the 2 following methods for getting it on android but both are incorrect
var documentsDirectory = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
string jpgFilename = System.IO.Path.Combine(documentsDirectory, App.IMAGE_FOLDER_NAME);
jpgFilename = System.IO.Path.Combine(jpgFilename, name);
Java.IO.File dir = Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DataDirectory + "/" + App.IMAGE_FOLDER_NAME + "/" + name);
dir ends up as
/storage/emulated/0/data/{DIRECTORY}/{IMAGENAME}
jpgFileName ends up as /data/data/{APPNAME}.Android/files/{DIRECTORYNAME}/{IMAGENAME}
I dont want to hardcode anything in the paths but neither of these are right. I could not find anything in the GIT documentation for getting the file path except by looking at the path of the file created when taking a picture
The problem
I had the same kind of issue with Xamarin Media Plugin. For me, the problem is:
we don't really know where the plugin save the picture on android.
After reading all documentation I found, I just noted this:
... When your user takes a photo it will still store temporary data, but also if needed make a copy to the public gallery (based on platform). In the MediaFile you will now see a AlbumPath that you can query as well.
(from: Github plugin page)
so you can save your photo to your phone gallery (it will be public) but the path is known.
and we don't know what means "store the temporary data".
Solution
After investigating on how/where an app can store data, I found where the plugin stores photos on Android >> so I can generate back the full file names
In your Android app, the base path you are looking for is:
var basePath = Android.App.Application.Context.GetExternalFilesDir(null).AbsolutePath
It references your app's external private folder. It looks like that:
/storage/emulated/0/Android/data/com.mycompany.myapp/files
So finally to get your full file's path:
var fullPath = basePath + {DIRECTORYNAME} + {FILENAME};
I suggest you to make a dependency service, for instance 'ILocalFileService', that will expose this 'base path' property.
Please let me know if it works for you !
I resolved a similar problem. I wanted to collect all files for my app in a folder visible to all users.
var documentsDirectory = Android.OS.Environment.GetExternalStoragePublicDirectory(
Android.OS.Environment.DirectoryDocuments);
If you want to create Directory, add to your class using System.IO; and you have the same functions in a normal .NET application.
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
If you want to create files or directory, you can use PCLStorage.
public async Task<bool> CreateFileAsync(string name, string context)
{
// get hold of the file system
IFolder folder = FileSystem.Current.LocalStorage;
// create a file, overwriting any existing file
IFile file = await folder.CreateFileAsync(name,
CreationCollisionOption.ReplaceExisting);
// populate the file with some text
await file.WriteAllTextAsync(context);
return true;
}
to get the private path
var privatePath = file.Path;
to get the public Album path
var publicAlbumPath = file.AlbumPath;
se the documentation here https://github.com/jamesmontemagno/MediaPlugin
How to get all files from a folder in XAML application using relative path?
I am playing with a Kinect application built in WPF. All images used in the application are in
[project dir]\Images\ and all backgrounds are in
[project dir]\Images\Backgrounds\.
I want to get list of all the images from Backgrounds directory using relative path. I have tried
DirectoryInfo(#"\Images\Backgrounds\").GetFiles();
but it says that Backgrounds directory must exist in [full path+project dir]\debug\bin\
Selecting each image manually works fine
Uri uri = new Uri(#"Images\Backgrounds\Background1.png", UriKind.Relative);
ImageSource imgsource = new BitmapImage(uri);
this.Backdrop.Source = imgsource;
It works for a single file because you specify URI to resource embedded in the assembly and not some folder on your drive, whilst GetFiles() will work only on a specific physical folder. So either you need to copy all your images instead of embedding them or use the code below and resourceNames should give you names of all resources that you can reference by URI in your project:
List<string> resourceNames = new List<string>();
var assembly = Assembly.GetExecutingAssembly();
var rm = new ResourceManager(assembly.GetName().Name + ".g", assembly);
try
{
var list = rm.GetResourceSet(CultureInfo.CurrentCulture, true, true);
foreach (DictionaryEntry item in list)
resourceNames.Add((string)item.Key);
}
finally
{
rm.ReleaseAllResources();
}
if you need then at this point each item.Value contains UnmanagedMemoryStream for each resource.
I would reply to your post instead of posting a solution, but I'm new to this site and dont have that privledge yet.... Hey! Just trying to help.
Anyway, I've had a problem similar to this before concerning DirectoryInfo. Can't remember exactly how I solved it, but I remember the backslashes being tricky. Have you checked out the MSDN site? It seems like it can't find your directory so its looking for it in debug by default. MSDN says the format should be "MyDir\MySubdir" in C#.
In my app I have a WebBrowser element.
I would like to load a local file in it.
I have some questions:
Where to place the HTML file (so that it will also be installed if a user executes the setup)
how to reference the file? (e.g. my guess is the user's installation folder would not always be the same)
EDIT
I've added the HTML file to my project.
And I have set it up so that it gets copied to output folder.
When I check it it is present when run: \bin\Debug\Documentation\index.html
However when I do the following I get a 'Page cannot be displayed' error in the webbrowser element.
I use the following code to try to display the HTML file in the Webbrowser.
webBrowser1.Navigate(#".\Documentation\index.html");
Do a right click->properties on the file in Visual Studio.
Set the Copy to Output Directory to Copy always.
Then you will be able to reference your files by using a path such as #".\my_html.html"
Copy to Output Directory will put the file in the same folder as your binary dlls when the project is built. This works with any content file, even if its in a sub folder.
If you use a sub folder, that too will be copied in to the bin folder so your path would then be #".\my_subfolder\my_html.html"
In order to create a URI you can use locally (instead of served via the web), you'll need to use the file protocol, using the base directory of your binary - note: this will only work if you set the Copy to Ouptut Directory as above or the path will not be correct.
This is what you need:
string curDir = Directory.GetCurrentDirectory();
this.webBrowser1.Url = new Uri(String.Format("file:///{0}/my_html.html", curDir));
You'll have to change the variables and names of course.
quite late but it's the first hit i found from google
Instead of using the current directory or getting the assembly, just use the Application.ExecutablePath property:
//using System.IO;
string applicationDirectory = Path.GetDirectoryName(Application.ExecutablePath);
string myFile = Path.Combine(applicationDirectory, "Sample.html");
webMain.Url = new Uri("file:///" + myFile);
Note that the file:/// scheme does not work on the compact framework, at least it doesn't with 5.0.
You will need to use the following:
string appDir = Path.GetDirectoryName(
Assembly.GetExecutingAssembly().GetName().CodeBase);
webBrowser1.Url = new Uri(Path.Combine(appDir, #"Documentation\index.html"));
Place it in the Applications setup folder or in a separte folder beneath
Reference it relative to the current directory when your app runs.
Somewhere, nearby the assembly you're going to run.
Use reflection to get path to your executing assembly, then do some magic to locate your HTML file.
Like this:
var myAssembly = System.Reflection.Assembly.GetEntryAssembly();
var myAssemblyLocation = System.IO.Path.GetDirectoryName(a.Location);
var myHtmlPath = Path.Combine(myAssemblyLocation, "my.html");
What worked for me was
<WebBrowser Source="pack://siteoforigin:,,,/StartPage.html" />
from here. I copied StartPage.html to the same output directory as the xaml-file and it loaded it from that relative path.
Windows 10 uwp application.
Try this:
webview.Navigate(new Uri("ms-appx-web:///index.html"));
Update on #ghostJago answer above
for me it worked as the following lines in VS2017
string curDir = Directory.GetCurrentDirectory();
this.webBrowser1.Navigate(new Uri(String.Format("file:///{0}/my_html.html", curDir)));
I have been trying different answers from here, but managed to derive something working, here it is:
1- Added the page in a folder i created at project level named WebPagesHelper
2- To have the page printed by webBrowser Control,
string curDirectory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase);
var uri = new Uri(curDirectory);
string myFile = Path.Combine(uri.AbsolutePath, #"WebPagesHelper\index.html");
Uri new_uri = new Uri(myFile);
i had to get the assembly path, create a first uri to get an absolute path without the 'file://' attached, next i combined this absolute path with a relative path to the page in its folder, then made another URI from the result.
Then pass this to webBrowser URL property webBrowser.URL = new_uri;
I'm using Microsoft Visual Studio 2005 and I am able to load a web page using
string exePath = Application.ExecutablePath ;
int n = exePath.LastIndexOf("\\");
// the web page & image is in the same directory as the executable
string filename = exePath.Substring(0, n)+ "\\switchboard.htm";
webBrowser1.DocumentStream = new FileStream(filename, FileMode.Open);
The text of the web page loads ok, but this
<img src="cardpack1.jpg" height="200" alt="card">
results in a broken image.
The image file is in the same directory as the html file.
I'm not even sure what to google. All of the questions I've found appear to be doing
fancier things like resolving images from resource bundles and trying to dynamically
display/not display images.
So, any advice would be appreciated (even if it's just ... google for x, y, z)
Why not just use the WebBrowser.Navigate Method instead. A URI can be a local file. Its also a good idea to use the Path methods to create your string.
string exePath = Application.ExecutablePath;
string htmPath = Path.Combine( Path.GetDirectoryName(exePath) , "switchboard.htm");
webBrowser1.Navigate(htmPath);