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Add AppLanguageHelper
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6 files changed

+319
-39
lines changed

6 files changed

+319
-39
lines changed

‎dev/DevWinUI/Extensions/Markup/ResourceStringExtension.cs‎

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using Microsoft.Windows.ApplicationModel.Resources;
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namespace DevWinUI;
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[MarkupExtensionReturnType(ReturnType = typeof(string))]
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public sealed partial class ResourceStringExtension : MarkupExtension
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{
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private static readonly ResourceLoader resourceLoader = new();
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public string Name { get; set; } = string.Empty;
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protected override object ProvideValue() => resourceLoader.GetString(Name);
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}

‎dev/DevWinUI/Extensions/StringExtensions.cs‎

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using Microsoft.UI.Xaml.Media.Imaging;
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using System.Collections.Concurrent;
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using Microsoft.UI.Xaml.Media.Imaging;
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using Microsoft.Windows.ApplicationModel.Resources;
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namespace DevWinUI;
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public static partial class StringExtensions
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{
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private static readonly ConcurrentDictionary<string, string> cachedResources = new();
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private static readonly ResourceMap resourcesTree = new ResourceManager().MainResourceMap.TryGetSubtree("Resources");
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extension(string value)
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{
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public string GetLocalizedResource()
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{
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if (cachedResources.TryGetValue(value, out var resource))
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{
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return resource;
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}
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resource = resourcesTree?.TryGetValue(value)?.ValueAsString;
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return cachedResources[value] = resource ?? string.Empty;
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}
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public TEnum GetLocalizedEnum<TEnum>() where TEnum : struct, Enum
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{
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var result = value.GetLocalizedResource();
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return GeneralHelper.GetEnum<TEnum>(result);
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}
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public TEnum GetEnum<TEnum>() where TEnum : struct, Enum
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{
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return GeneralHelper.GetEnum<TEnum>(value);
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}
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public string ConvertToPersianDigit()
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{
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return value.Replace("0", "۰").Replace("1", "۱").Replace("2", "۲").Replace("3", "۳").Replace("4", "۴")

‎dev/DevWinUI/Helpers/AppLanguageHelper/AppLanguageHelper.cs‎

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using System.Globalization;
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using Windows.Globalization;
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namespace DevWinUI;
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public static partial class AppLanguageHelper
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{
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/// <summary>
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/// A constant string representing the default language code.
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/// It is initialized as an empty string.
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/// </summary>
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private static readonly string _defaultCode = string.Empty;
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/// <summary>
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/// A collection of available languages.
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/// </summary>
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public static ObservableCollection<AppLanguageItem> SupportedLanguages { get; }
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/// <summary>
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/// Gets the preferred language.
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/// </summary>
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public static AppLanguageItem PreferredLanguage { get; private set; }
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/// <summary>
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/// Gets the preferred language.
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/// </summary>
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public static bool IsPreferredLanguageRtl
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{
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get
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{
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if (PreferredLanguage.Code is null)
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return false;
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var culture = new CultureInfo(PreferredLanguage.Code);
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return culture.TextInfo.IsRightToLeft;
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}
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}
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/// <summary>
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/// Initializes the <see cref="AppLanguageHelper"/> class.
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/// </summary>
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static AppLanguageHelper()
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{
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// Populate the Languages collection with available languages
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var appLanguages = ApplicationLanguages.ManifestLanguages
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.Append(string.Empty) // Add default language code
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.Select(language => new AppLanguageItem(language))
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.OrderBy(language => language.Code is not "") // Default language on top
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.ThenBy(language => language.Name)
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.ToList();
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// Get the current primary language override.
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var current = new AppLanguageItem(ApplicationLanguages.PrimaryLanguageOverride);
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// Find the index of the saved language
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var index = appLanguages.IndexOf(appLanguages.FirstOrDefault(dl => dl.Name == current.Name) ?? appLanguages.First());
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// Set the system default language as the first item in the Languages collection
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var systemLanguage = new AppLanguageItem(CultureInfo.InstalledUICulture.Name, systemDefault: true);
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if (appLanguages.Select(lang => lang.Name.Contains(systemLanguage.Name)).Any())
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appLanguages[0] = systemLanguage;
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else
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appLanguages[0] = new("en-US", systemDefault: true);
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// Initialize the list
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SupportedLanguages = new(appLanguages);
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PreferredLanguage = SupportedLanguages[index];
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}
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/// <summary>
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/// Attempts to change the preferred language code by index.
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/// </summary>
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/// <param name="index">The index of the new language.</param>
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/// <returns>True if the language was successfully changed; otherwise, false.</returns>
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public static bool TryChange(int index)
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{
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if (index >= SupportedLanguages.Count || PreferredLanguage == SupportedLanguages[index])
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return false;
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PreferredLanguage = SupportedLanguages[index];
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// Update the primary language override
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ApplicationLanguages.PrimaryLanguageOverride = index == 0 ? _defaultCode : PreferredLanguage.Code;
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return true;
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}
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/// <summary>
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/// Attempts to change the preferred language code by code.
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/// </summary>
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/// <param name="code">The code of the new language.</param>
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/// <returns>True if the language was successfully changed; otherwise, false.</returns>
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public static bool TryChange(string code)
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{
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var lang = new AppLanguageItem(code);
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var find = SupportedLanguages.FirstOrDefault(dl => dl.Name == lang.Name);
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if (find is null)
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return false;
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var index = SupportedLanguages
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.Skip(1) // Skip first (default) language
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.ToList()
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.IndexOf(find ?? SupportedLanguages.First());
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// Adjusts the index to match the correct index
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index = index == 0 ? index : index + 1;
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if (PreferredLanguage == SupportedLanguages[index])
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return false;
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PreferredLanguage = SupportedLanguages[index];
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// Update the primary language override
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ApplicationLanguages.PrimaryLanguageOverride = index == 0 ? _defaultCode : PreferredLanguage.Code;
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return true;
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}
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}

‎dev/DevWinUI/Helpers/AppLanguageHelper/AppLanguageItem.cs‎

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using System.Globalization;
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namespace DevWinUI;
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public sealed partial class AppLanguageItem
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{
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/// <summary>
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/// Gets the language code. e.g. en-US.
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/// </summary>
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public string Code { get; set; }
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/// <summary>
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/// Gets the language name. e.g. English (United States)
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/// </summary>
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public string Name { get; set; }
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/// <summary>
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/// Initializes a new instance of the <see cref="AppLanguageItem"/> class.
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/// </summary>
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/// <param name="code">The code of the language.</param>
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/// <param name="systemDefault">Indicates whether the language code is the system default.</param>
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public AppLanguageItem(string code, bool systemDefault = false)
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{
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if (systemDefault || string.IsNullOrEmpty(code))
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{
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Code = new CultureInfo(code).Name;
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Name = "UseSystemSetting".GetLocalizedResource();
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}
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else
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{
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var culture = new CultureInfo(code);
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Code = culture.Name;
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Name = culture.NativeName;
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}
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}
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public override string ToString() => Name;
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}

‎dev/DevWinUI/Strings/en-US/Resources.resw‎

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<?xml version="1.0" encoding="utf-8"?>
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<root>
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<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
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<xsd:element name="root" msdata:IsDataSet="true">
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<root>
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<!--
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Microsoft ResX Schema
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Version 2.0
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The primary goals of this format is to allow a simple XML format
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that is mostly human readable. The generation and parsing of the
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various data types are done through the TypeConverter classes
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associated with the data types.
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Example:
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... ado.net/XML headers & schema ...
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<resheader name="resmimetype">text/microsoft-resx</resheader>
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<resheader name="version">2.0</resheader>
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<resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
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<resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
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<data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
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<data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
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<data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
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<value>[base64 mime encoded serialized .NET Framework object]</value>
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</data>
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<data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
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<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
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<comment>This is a comment</comment>
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</data>
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There are any number of "resheader" rows that contain simple
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name/value pairs.
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Each data row contains a name, and value. The row also contains a
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type or mimetype. Type corresponds to a .NET class that support
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text/value conversion through the TypeConverter architecture.
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Classes that don't support this are serialized and stored with the
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mimetype set.
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The mimetype is used for serialized objects, and tells the
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ResXResourceReader how to depersist the object. This is currently not
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extensible. For a given mimetype the value must be set accordingly:
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Note - application/x-microsoft.net.object.binary.base64 is the format
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that the ResXResourceWriter will generate, however the reader can
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read any of the formats listed below.
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mimetype: application/x-microsoft.net.object.binary.base64
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value : The object must be serialized with
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: System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
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: and then encoded with base64 encoding.
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mimetype: application/x-microsoft.net.object.soap.base64
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value : The object must be serialized with
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: System.Runtime.Serialization.Formatters.Soap.SoapFormatter
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: and then encoded with base64 encoding.
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mimetype: application/x-microsoft.net.object.bytearray.base64
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value : The object must be serialized into a byte array
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: using a System.ComponentModel.TypeConverter
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: and then encoded with base64 encoding.
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-->
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<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
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<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
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<xsd:element name="root" msdata:IsDataSet="true">
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<xsd:complexType>
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<xsd:choice maxOccurs="unbounded">
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<xsd:element name="metadata">
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<xsd:complexType>
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<xsd:choice maxOccurs="unbounded">
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<xsd:element name="data">
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<xsd:complexType>
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<xsd:sequence>
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<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
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<xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
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</xsd:sequence>
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<xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
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<xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
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<xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
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</xsd:complexType>
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</xsd:element>
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<xsd:element name="resheader">
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<xsd:complexType>
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<xsd:sequence>
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<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
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</xsd:sequence>
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<xsd:attribute name="name" type="xsd:string" use="required" />
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</xsd:complexType>
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</xsd:element>
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</xsd:choice>
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<xsd:sequence>
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<xsd:element name="value" type="xsd:string" minOccurs="0" />
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</xsd:sequence>
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<xsd:attribute name="name" use="required" type="xsd:string" />
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<xsd:attribute name="type" type="xsd:string" />
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<xsd:attribute name="mimetype" type="xsd:string" />
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<xsd:attribute ref="xml:space" />
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</xsd:complexType>
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</xsd:element>
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</xsd:schema>
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<resheader name="resmimetype">
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<value>text/microsoft-resx</value>
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</resheader>
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<resheader name="version">
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<value>1.3</value>
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</resheader>
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<resheader name="reader">
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<value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.3500.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
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</resheader>
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<resheader name="writer">
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<value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.3500.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
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</resheader>
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</xsd:element>
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<xsd:element name="assembly">
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<xsd:complexType>
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<xsd:attribute name="alias" type="xsd:string" />
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<xsd:attribute name="name" type="xsd:string" />
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</xsd:complexType>
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</xsd:element>
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<xsd:element name="data">
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<xsd:complexType>
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<xsd:sequence>
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<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
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<xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
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</xsd:sequence>
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<xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
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<xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
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<xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
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<xsd:attribute ref="xml:space" />
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</xsd:complexType>
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</xsd:element>
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<xsd:element name="resheader">
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<xsd:complexType>
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<xsd:sequence>
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<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
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</xsd:sequence>
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<xsd:attribute name="name" type="xsd:string" use="required" />
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</xsd:complexType>
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</xsd:element>
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</xsd:choice>
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</xsd:complexType>
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</xsd:element>
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</xsd:schema>
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<resheader name="resmimetype">
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<value>text/microsoft-resx</value>
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</resheader>
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<resheader name="version">
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<value>2.0</value>
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</resheader>
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<resheader name="reader">
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<value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
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</resheader>
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<resheader name="writer">
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<value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
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</resheader>
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<data name="AMinuteAgo" xml:space="preserve">
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<value>a minute ago</value>
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</data>
@@ -111,6 +189,9 @@
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<data name="Tomorrow" xml:space="preserve">
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<value>tomorrow</value>
113191
</data>
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<data name="UseSystemSetting" xml:space="preserve">
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<value>Use System Default</value>
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</data>
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<data name="Yesterday" xml:space="preserve">
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<value>yesterday</value>
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</data>

‎dev/DevWinUI/Strings/fa-IR/Resources.resw‎

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<data name="Tomorrow" xml:space="preserve">
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<value>روز بعد</value>
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</data>
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<data name="UseSystemSetting" xml:space="preserve">
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<value>پیشفرض سیستم</value>
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</data>
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<data name="Yesterday" xml:space="preserve">
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<value>دیروز</value>
194197
</data>

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