Windows 10: What is the "explain_this_is_writeable_not_delete" file in the Local App Data folder and...

Daniel Walters2010 · Jun 21, 2023

So I found this in the Local App Data folder. I found an file that says ".__explain_this_is_writeable_not_delete__" and has an file extension of the same name and when I open it up with my text editor, it says the same name of this file. What does it do? Is it safe? Is it okay if I can delete it? Thanks in advance!

:)

aayman_farzand · Jun 21, 2023

Sync folder between Air and PC locally

I'm looking for a software which will keep folders on my Mac Air and PC synced via the local wireless network.

I usually take my Mac with me everywhere and as such have tons of large downloaded files that I have to manually copy over to the PC. I'm looking for something that'll transfer the files over the local wireless network in my home.

Any suggestions?

Brink · Jun 21, 2023

Getting started storing app data locally

When thinking about your app data, one aspect to consider is data lifetime. In general, when it comes to the lifetime of data, you have two options: local data, which exists as long as the app that created it remains installed, and roaming data, that will continue existing online even after your app is uninstalled. If you want your data to be roamed/synced and live independently of a single app installation you have different options available, such as the roaming app data feature discussed in the recent blog post series on that topic or by using a cloud data provider, such as OneDrive or Azure.

In today’s blog post, we will talk about local data, or data that is tied to the specific device where it was created. We will be looking at the different features that the Universal Windows Platform provides you with to do this, examples, and best practices.

Types of app data

There are two types of app data: settings and files.

Settings. Use settings to store app state and user preferences. The Universal Windows Platform (UWP) provides APIs to easily store and retrieve settings. The data types you can use in app settings are:

UInt8, Int16, UInt16, Int32, UInt32, Int64, UInt64, Single, Double

Boolean

Char16, String

DateTime, TimeSpan

GUID, Point, Size, Rect

ApplicationDataCompositeValue—a set of related app settings that must be serialized and deserialized atomically

Files. Use files to store binary data or to serialize your own custom types.

Storing app data locally

When an app is installed, the system creates a per-user app data container on the device. This app data container is within the app sandbox, which means no other app will be able to access it. The system will preserve the content of the data container when the app is updated and will remove it when the user uninstalls the app.

As a developer, you have three locations available in the app data container to store data locally:

Local

LocalCache

Temporary

Local

Local can contain both files (LocalFolder) and settings (LocalSettings) and should be used for any information that is of user value and can’t easily be recreated or downloaded. Data stored in Local can be backed up by the system if the device supports App Data Backup. Because of this, you should avoid using Local to store cached or temporary files that you could create or fetch again on demand.

App Data Backup

During a device backup operation, the system will grab any app data in Local and store it as part of a device backup image in OneDrive. If the user resets or replaces the device, he or she will be given the choice to restore a previous backup, which will restore the app data in Local as part of the app’s installation. Note that by not storing data in Local you will effectively be opting out of backup for your app.
Best practices for Local

Use for data with user value that can’t be recreated or downloaded by your app. If you place cached content or throwaway data in Local you are wasting user storage on OneDrive and delaying how long it takes to install your app during a device restore.

Use for settings that are unique to a device. In general, it is desirable to have common user settings on all of the user’s devices. However if you have settings that you don’t want roamed you should store them in Local.

Do not store credentials in Local. In order to offer the best user experience around credentials you should be using the Credential Locker feature.

Avoid it for data tied to specific hardware. If you have data that can only be consumed on the same physical device where it was created do not place in Local, because the user may choose to restore this data to a different device. One example of data tied to specific hardware is anything derived from device ID.

Using LocalFolder

To read or write files in LocalFolder, you must use the ApplicationData.LocalFolder property; you will get back a StorageFolder. You can then use StorageFolder.CreateFileAsync and StorageFolder.GetFileAsync to write and read files.
Click to expand...

Read more: Getting started storing app data locally | Building Apps for Windows

monim1 · Jun 21, 2023

EMUI

Here's the steps to update EMUI 4.1.1 to 5.0 :

Download the EMUI 5.0(desired version) .zip file, and unzip it.

Place the .hwt file in the HWThemes folder from your phone.

Using the Themes app, apply the new theme.

Restart the phone, in order to see all the new changes.

And you’re done!

Windows 10: What is the "explain_this_is_writeable_not_delete" file in the Local App Data folder and...

What is the "explain_this_is_writeable_not_delete" file in the Local App Data folder and...

What is the "explain_this_is_writeable_not_delete" file in the Local App Data folder and...

What is the "explain_this_is_writeable_not_delete" file in the Local App Data folder and...

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