When converting an app to a Windows Store app, we add the files as mentioned here. But now - how do we access them? What's their path?
They're not in the special folder created for the package.
You can create a folder structure in your project where you can include the files and then since you are already crossing the Centennial Bridge, you can start using the Windows.Storage.StorageFile WinRT API to interact with files.
For example, you can use: StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///folderUnderYourAppRoot/image.bmp")); to get the file which is under the "folderUnderYourAppRoot". This is the generic guidance: https://msdn.microsoft.com/en-us/windows/uwp/files/quickstart-reading-and-writing-files, so you can review it further...
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Say I use some .json files to descript some object data which effect to the program's behavior, I hope to use these files in the following scenarios
The default values, for this purpose, I need a set of files follows with the application to be packed and installed.
I wish it could be edited by human manually. (Because something have no interface to be modify on UI)
Both user and the program need to kwnow the location the files will be placed after installation.
In debugging stage, I could put these files in the user\AppData\Local.. folder and I know how to access them, but I don't know how to put files into the package and will them generated to anywhere after install?
Thank you for any suggestion.
ps.
I use the "Blank App (WinUI 3 in UWP)" template to create my
application.
I'm new in UWP and WinUI, I used to write traditional Windows Form programs.
How to include externel user files into UWP side-loading package?
You could place the json file into app's project and set the file property as Content, then it will deploy into installtion folder after package install. and please note the json file is readonly in the installtion folder.
so you could call CopyAsync method copy the file to the destination folder that app's local folder with full permission.
For more details about file access permissions please refer this document.
I'm trying to read a file.txt from a src folder inside my project. But when I write File.ReadAllText("PATH") I don't know the path for the file. The file is also inside a views folder.
string text = File.ReadAllText();
This is my project folder:
I'm trying to read from popuppage.xaml to src/.txt file
Xamarin.Forms code runs on multiple platforms - each of which has its own filesystem. Previously, this meant that reading and writing files was most easily performed using the native file APIs on each platform. Alternatively, embedded resources are a simpler solution to distribute data files with an app.
You can check this document to learn more about File Handing in Xamarin Forms https://learn.microsoft.com/en-us/xamarin/xamarin-forms/data-cloud/data/files?tabs=windows
I'm currently programming an app that need to access to some Excel files.
So what I need is to create a folder in the app files with these Excel files in it but I want that folder to be created at the app install, so they would be accessible for every device that install the app.
The files also need to be modifiable in the future by the user.
The problem is that I don't know how to do it right. Should I just create a new folder in the Solution Explorer and put the Excel files in it ? Should I create the folder programmatically and force the user to put them manually in that folder ?
I don't really know how to do it so that the application will not be too complicated to be modified by the user.
EDIT : Also, if I put the files in the Assets, will the user be able to change them later ?
So what I need is to create a folder in the app files with these Excel files in it but I want that folder to be created at the app install, so they would be accessible for every device that install the app. The files also need to be modifiable in the future by the user.
For your requirement, you could use ApplicationData.LocalFolder to store Excel files, LocalFolder has full access permission. LocalFolder exists in the app's sandbox path and will be created after the app is installed.
Also, if I put the files in the Assets, will the user be able to change them later ?
Assets folder exists in Windows.ApplicationModel.Package.Current.InstalledLocation and it is read only that often use to store some static resource. You can't modify the file at run time.
For more details about file access permissions please refer this document.
Forget the installer. It is deprecated and the new apps on Windows are installed over the store.
If you want to copy some files (Excel templates), you have to put them in your resources. At startup you can check if there is a folder in your App-Data folder with your files, if you don't find them, you can copy it from your resources. So even if the file is deleted, your app can copy them in the next start.
If you use Windows Forms with .NET, you can check this page:
https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.application.localuserappdatapath?view=netframework-4.8
If you are writing an UWP-app, check this page:
https://learn.microsoft.com/en-us/windows/uwp/design/app-settings/store-and-retrieve-app-data
I have developed a C# application in Unity for Android. Additionally, I built a custom external C++ DLL which is properly loaded and accessible from the C# code. I have also added some .xml files into the StreamingAssets folder which works as expected as I can see those files loaded into the .apk.
Currently my problem is that I'm not able to access such xml files from my C++ library. On one hand I'm not sure how to do it correctly, on the other I tried multiple unsuccessful approaches including trying to understand in which cwd was my DLL loaded and then navigate to the files I needed (which didn't work as I constantly receive an access denied error).
EDIT:
Your replies actually put me on the right track and I solved the issue as follow:
During the OnStart() phase of my application, I use the UnityWebRequest class to extract from the JAR file the required files and then I save them in the Application.persistentDataPath
After that, I pass to my DLL the new path to each file which allows me to access them without any issue.
On Android the StreamingAssets are in a jar. That may well be the reason why you can't access them, but as you can see in the manual you can use the WWW class to retrieve files there.
On Android, the files are contained within a compressed .jar file
(which is essentially the same format as standard zip-compressed
files). This means that if you do not use Unity’s WWW class to
retrieve the file, you need to use additional software to see inside
the .jar archive and obtain the file.
(https://docs.unity3d.com/Manual/StreamingAssets.html)
On Android, the files are contained within a compressed .jar file
(which is essentially the same format as standard zip-compressed
files). This means that if you do not use Unity’s WWW class to
retrieve the file, you need to use additional software to see inside
the .jar archive and obtain the file.
A JAR is a package file format typically used to aggregate many Java class files and associated metadata and resources into one file for distribution. JAR files are archive files that include a Java-specific manifest file. They are built on the ZIP format and typically have a .jar file extension.
This means that you can work with jar files the same way as you do with zip files.
There is a fork for minizip with examples on how to use it.
I am creating a application where I need to access images from a image folder in application files which I will add later after publishing the application. But the thing is when I access my application data path it is .../AppData/Temp...
Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
So what is the way to access the data in Application Files in .exe directory.
My base directory is in Temp. But I want to access the one from where I executed the .exe
See more How can I get the application's path in a .NET console application?
Sulotion:
Path.Combine(System.Reflection.Assembly.GetExecutingAssembly().Location,#"/Images/logo.png");
I hope this helps you.