I'm working on a WinRT app that's actually also a game. I need to keep different information such as audio settings or player statistics somewhere in sort of a file or somehow. If it's a file, just write settings in or... ? I have an idea but I think is way too rudimentary... What is the best approach to obtain this?
Any help or suggestions are greatly appreciated!
Here are some ways to save Data in a WinRT app, the method with Settings in the name is probably what you are looking for!- just added the other ones as well,- you also can serialize data if you want to. This is working code- but don't forget to add error handling etc. It's a simple demo code :)
As for settings, you can save simple settings as key and values, and for more complex settings you can use a container. I've provided both examples here =)
public class StorageExamples
{
public async Task<string> ReadTextFileAsync(string path)
{
var folder = ApplicationData.Current.LocalFolder;
var file = await folder.GetFileAsync(path);
return await FileIO.ReadTextAsync(file);
}
public async void WriteTotextFileAsync(string fileName, string contents)
{
var folder = ApplicationData.Current.LocalFolder;
var file = await folder.CreateFileAsync(fileName, CreationCollisionOption.ReplaceExisting);
await FileIO.WriteTextAsync(file, contents);
}
public void SaveSettings(string key, string contents)
{
ApplicationData.Current.LocalSettings.Values[key] = contents;
}
public string LoadSettings(string key)
{
var settings = ApplicationData.Current.LocalSettings;
return settings.Values[key].ToString();
}
public void SaveSettingsInContainer(string user, string key, string contents)
{
var localSetting = ApplicationData.Current.LocalSettings;
localSetting.CreateContainer(user, ApplicationDataCreateDisposition.Always);
if (localSetting.Containers.ContainsKey(user))
{
localSetting.Containers[user].Values[key] = contents;
}
}
}
The MSDN has an article on using app settings in Windows Store apps.
The Windows.UI.ApplicationSettings namespace contains all the classes you need.
Provides classes that allow developers to define the app settings that appear in the settings pane of the Windows shell. The settings pane provides a consistent place for users to access app settings.
Basically these classes let you store application settings and hook them into the standard place for all application settings. Your users don't have to learn anything new, the settings will be in the expected place.
Related
I'm trying to change page and send some data to the new page just create. Basicaly, I have a page where the user could log, I'm gonna save the informations and then I'm going to open a new page by sendind the information to my "profil" page, where the user will have the information about his account. I'm using the MVVM patern, I don't know if it's going to change something but I ad this precision ;).
Edit: The only solution i have found is to pass the string of my object (gladly it is just strings). Because we can pass strings to another page. But I would prefer to give my object directly, or change my architecture if needed. Like don't create a page but replace my Usercontroles by others :(.
Thanks for the help.
For temp data:
If it is WP silverlight app, we can directly assign object to public property of destination page in OnNavigateFrom event of source page. For example, we can declare a public property A on Dest page, and implement the following in Source page to pass the user object:
protected override void OnNavigatedFrom(NavigationEventArgs e)
{
Dest destPage = e.Content as Dest;
if(destPage != null)
{
User a = new User();
a.UserName = "aa";
a.ID = 1;
destPage.A = a;
}
}
For WP runtime app on WP 8.1, you can directly use Frame.Navigate(TypeName, Object) to pass the parameter.
For persist data:
I will suggest storing the data to local storage on source page and read it from destination page.
If I understand right you should use parameters in navigate URI
For example to send name you can use:
NavigationService.Navigate(new Uri("/View/Page.xaml?name=UserName", UriKind.Relative));
and then in OnNavigatedTo() check name parameter:
string name;
NavigationContext.QueryString.TryGetValue("name", out name);
You can use IsolatedStorageSettings.ApplicationSettings["keyname"]=yourobject;
And whenever you want to use this value just unbox this value as below,
if(IsolatedStorageSettings.ApplicationSettings.Contains("keyname"))
{
var obj=(yourobject)IsolatedStorageSettings.ApplicationSettings["keyname"];
}
Background
I have a piece of LESS code that needs to be compiled at runtime with Less.js -- it calculates some things via JavaScript -- so I can't use the task runner, etc.
In my index.html, I have:
<head>
...
<link rel="stylesheet/less" href="assets/less/DynamicHeight.less" />
...
<script type="text/javascript" src="lib/less/less.js"></script>
...
</head>
Problem
Less.js appears unable to find the file:
And when I try to access the file directly, I see:
Question
How can I add the configuration that will allow this less file to be downloaded? Am I still able to use web.config files with vNext, or do I need to do something with config.json instead?
Lead 1: Should I use Owin?
Thinking this might be the right path but I'm pretty unfamiliar.
I see a number of tutorials out there, such as K. Scott Allen's, which reference code such as:
public void Configuration(IAppBuilder app)
{
var options = new StaticFileOptions
{
ContentTypeProvider = new FileExtensionContentTypeProvider()
};
((FileExtensionContentTypeProvider)options.ContentTypeProvider).Mappings.Add(
new KeyValuePair<string, string>(".less", "text/css"));
app.UseStaticFiles(options);
}
However, it appears that in its current version, asp.net is looking for a signature of Configure(IApplicationBuilder app) instead.
The IApplicationBuilder class doesn't have a method along the lines of UseStaticFiles -- it only has a signature of IApplicationBuilder Use(Func<RequestDelegate, RequestDelegate> middleware).
I have a feeling that this is likely the right path to solve the issue -- I just can't find out how to propertly configure the IAppliationBuilder to map the MIME extension.
Okay, I believe I figured it out.
Step 1: Add the appropriate library for static files
In ASP.NET vNext, this is Microsoft.Aspnet.StaticFiles.
In your project.json file, add the following under "dependencies":
"Microsoft.AspNet.StaticFiles": "1.0.0-beta2"
This adds the static middleware method that you can use later.
Step 2: Configure the app to use Static Files
Add the using statement at the top:
using Microsoft.AspNet.StaticFiles;
At this point, the app.UseStaticFiles method will be available, so your Configure method can look as follows:
public void Configure(IApplicationBuilder app)
{
var options = new StaticFileOptions
{
ContentTypeProvider = new FileExtensionContentTypeProvider()
};
((FileExtensionContentTypeProvider)options.ContentTypeProvider).Mappings.Add(
new KeyValuePair<string, string>(".less", "text/css"));
app.UseStaticFiles(options);
}
And voila! I get text when browsing to .less files, and no more error is appearing from LessJS.
In .NET Core 1.0.1, SeanKileen answer is still good. The following is a simple code rewrite:
public void Configure(IApplicationBuilder app, ...)
var contentTypeProvider = new FileExtensionContentTypeProvider();
contentTypeProvider.Mappings[".map"] = "application/javascript";
contentTypeProvider.Mappings[".less"] = "text/css";
app.UseStaticFiles(new StaticFileOptions()
{
ContentTypeProvider = contentTypeProvider
});
The above code EXTENDS the default mapping list (see the source), which already has ~370 mappings.
Avoid using the FileExtensionContentTypeProvider constructor overload that takes a dictionary (as suggested by JHo) if you want those 370 default mappings.
SeanKilleen's answer is right on, and still works ASP.NET Core RC1. My only improvement is to write the exact same code using collection initializers to make it cleaner.
app.UseStaticFiles(new StaticFileOptions
{
ContentTypeProvider = new FileExtensionContentTypeProvider(new Dictionary<string, string>
{
{ ".less", "text/css" },
{ ".babylon", "text/json" },
// ....
})
});
There is Windows.Storage.FileIO.WriteBufferAsync method, but it's not supported on WP8. What's the right way to save a buffer to a storage file on a phone?
You have a couple options as to how you can proceed here. However, the extensions you'll need to make working with IBuffer objects easier are all located in the System.Runtime.InteropServices.WindowsRuntime namespace. You may also need the System.IO namespace for the OpenStreamForWriteAsync extension.
private async void SaveBuffer(Windows.Storage.Streams.IBuffer myBuffer)
{
Windows.Storage.StorageFile myFile = await Windows.Storage.StorageFile.GetFileFromPathAsync("...");
using (var writeStream = await myFile.OpenStreamForWriteAsync())
{
// Option 1: Cast to stream and copy
myBuffer.AsStream().CopyTo(writeStream);
// Option 2: Cast to byte array and write
var content = myBuffer.ToArray();
writeStream.Write(content, 0, content.Length);
}
}
Ref:
IBuffer.AsStream Extension
IBuffer.ToArray Extension
I am looking for a way to uniquely identify a user in WinRT and preferably in WP8 as well. In WP7 applications, I could get a hash of the Live ID to do this, but I am not sure of how to approach this in WinRT environment. One of the goals here is to identify the user in Windows 8 environment as a whole. Using LiveID in one form or another would be ok in this case. I found some sources but they also mentioned that this might require some Enterprise Security permissions (or such) that are not welcome in the Windows Marketplace.
Say I want to identify the user based on the live id, I want to do it automatically and across multiple devices (PC, Tablet, maybe WP8). What resources should I be looking for?
You can obtain ID of each live user if you are using Live SDK. Here's code for you.
private async Task<string> GetLiveUserId()
{
string ID = "";
var auth = new LiveAuthClient();
var loginResult = await auth.LoginAsync(new string[] { "wl.signin", "wl.basic" });
if (loginResult.Status == LiveConnectSessionStatus.Connected)
{
var liveClient = new LiveConnectClient(loginResult.Session);
var myData = await liveClient.GetAsync("me");
ID = myData.Result["id"].ToString();
}
return ID;
}
I am trying to render emails in a windows service host.
I use RazorEngine 3 forked by coxp which has support for Razor 2.
https://github.com/coxp/RazorEngine/tree/release-3.0/src
This works fine for a couple of emailtemplates but there is one causing me problems.
#model string
Click here to enter a new password for your account.
This throws a CompilationException: The name 'WriteAttribute' does not exist in the current context. So passing in a string as model and putting it in the href-attribute causes problems.
I can make it work by changing this line by:
#Raw(string.Format("Klik hier.", #Model))
but this makes the template very unreadable and harder to pass along to a marketing department for further styling.
I like to add that referencing the RazorEngine by using a Nuget package is not a solution since it is based on Razor 1 and somewhere along the process the DLL for system.web.razor gets replaced by version 2 which breaks any code using RazorEngine. It seems more interesting to use Razor 2 to benefit from the new features and to be up to date.
Any suggestions on how to fix this would be great. Sharing your experiences is also very welcome.
UPDATE 1
It seems like calling SetTemplateBaseType might help, but this method does not exist anymore, so I wonder how to be able to bind the templatebasetype?
//Missing method in the new RazorEngine build from coxp.
Razor.SetTemplateBaseType(typeof(HtmlTemplateBase<>));
I use Windsor to inject the template service rather than using the Razor object. Here is a simplified part of the code that shows how to set the base template type.
private static ITemplateService CreateTemplateService()
{
var config = new TemplateServiceConfiguration
{
BaseTemplateType = typeof (HtmlTemplateBase<>),
};
return new TemplateService(config);
}
RazorEngine 3.1.0
Little bit modified example based on coxp answer without the injection:
private static bool _razorInitialized;
private static void InitializeRazor()
{
if (_razorInitialized) return;
_razorInitialized = true;
Razor.SetTemplateService(CreateTemplateService());
}
private static ITemplateService CreateTemplateService()
{
var config = new TemplateServiceConfiguration
{
BaseTemplateType = typeof (HtmlTemplateBase<>),
};
return new TemplateService(config);
}
public static string ParseTemplate(string name, object model)
{
InitializeRazor();
var appFileName = "~/EmailTemplates/" + name + ".cshtml";
var template = File.ReadAllText(HttpContext.Current.Server.MapPath(appFileName));
return RazorEngine.Razor.Parse(template, model);
}