الگوهای طراحی برنامه نویسی شیءگرا
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دات نت فریم ورک
دبلیو پی اف و سیلور لایت
سی و مشتقات
کتابهای رایگان
متفرقه
محیطهای مجتمع توسعه
مرورگرها
پی اچ پی
سپس روی Web Site ایجادشده راست کلیک کنید و از منوی بازشده Property Pages را انتخاب کنید. روی گزینهی Add Reference کلیک کنید، سپس پروژهی MyNewsWCFLibrary را از قسمت Solution انتخاب کرده و دکمهی OK را بفشارید.
دکمهی OK را بفشارید و از Solution Explorer فایل Web.Config را باز کنید. پیش از تغییرات مد نظر باید چنین محتوایی داشته باشد:
<?xml version="1.0" encoding="utf-8"?> <!-- For more information on how to configure your ASP.NET application, please visit http://go.microsoft.com/fwlink/?LinkId=169433 --> <configuration> <system.web> <compilation debug="true" targetFramework="4.5" /> <httpRuntime targetFramework="4.5" /> </system.web> </configuration>
متن آنرا به این صورت تغییر دهید:
<?xml version="1.0" encoding="utf-8"?> <!-- For more information on how to configure your ASP.NET application, please visit http://go.microsoft.com/fwlink/?LinkId=169433 --> <configuration> <system.web> <compilation debug="true" targetFramework="4.5" /> <httpRuntime targetFramework="4.5" /> </system.web> <system.serviceModel> <serviceHostingEnvironment> <serviceActivations> <add factory="System.ServiceModel.Activation.ServiceHostFactory" relativeAddress="./HamedService.svc" service="MyNewsWCFLibrary.MyNewsService"/> </serviceActivations> </serviceHostingEnvironment> <behaviors> <serviceBehaviors> <behavior> <serviceMetadata httpGetEnabled="true"/> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration>
همانگونه که مشاهده میکنید به وسیلهی تگ add factory سرویسها را به وبسایت معرفی میکنیم. با relativeAddress میتوانیم هر نامی را به عنوان نام سرویس که در URL قرار میگیرد معرفی کنیم. چنانکه من یه جای MyNewsService از نام HamedService استفاده کردم. و در صفت service فضای نام و نام کلاس سرویس را معرفی میکنیم.
اکنون پروژه را اجرا کنید. در مرورگر باید صفحه را به اینصورت مشاهده کنید:
نیازی به یادآوری نیست که شما میتوانید این پروژه را در IIS سرور راهاندازی کنید تا کلیهی مشتریها به آن دسترسی داشته باشند. هرچند پیش از آن باید امنیت را نیز در WCF برقرار کنید.
توجه داشته باشید که روشی که در این بخش به عنوان میزبانی WCF مطرح کردم یکی از روشهای میزبانی WCF است. مثلاً شما میتوانستید به جای ایجاد یک WCFLibrary و یک Web Site به صورت جداگانه یک پروژه از نوع WCF Service و یا Web Site ایجاد میکردید و سرویسها و مدل Entity Framework را به طور مستقیم در آن میافزودید. روشی که در این درس از آن بهره برده ایم البته مزایایی دارد از جمله اینکه خروجی پروژه فقط یک فایل DLL است و با هر بار تغییر فقط کافی است همان فایل را در پوشه Bin از وبسایتی که روی سرور میگذارید کپی کنید.
در بخش هشتم با هم یک پروژهی تحت ویندوز خواهیم ساخت و از سرویس WCF ای که ساخته ایم در آن استفاده خواهیم کرد.
using System.ComponentModel;
namespace SplittingViewsInMvvm.Models
{
public class GuiModel : INotifyPropertyChanged
{
string _name;
public string Name
{
get { return _name; }
set
{
_name = value;
raisePropertyChanged("Name");
}
}
string _lastName;
public string LastName
{
get { return _lastName; }
set
{
_lastName = value;
raisePropertyChanged("LastName");
}
}
#region INotifyPropertyChanged Members
public event PropertyChangedEventHandler PropertyChanged;
void raisePropertyChanged(string propertyName)
{
var handler = PropertyChanged;
if (handler == null) return;
handler(this, new PropertyChangedEventArgs(propertyName));
}
#endregion
}
}
using SplittingViewsInMvvm.Models;
namespace SplittingViewsInMvvm.ViewModels
{
public class MainViewModel
{
public GuiModel GuiModelData { set; get; }
public MainViewModel()
{
GuiModelData = new GuiModel();
GuiModelData.Name = "Name";
GuiModelData.LastName = "LastName";
}
}
}
<UserControl x:Class="SplittingViewsInMvvm.Views.Main"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
xmlns:VM="clr-namespace:SplittingViewsInMvvm.ViewModels"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<VM:MainViewModel x:Key="vmMainViewModel" />
</UserControl.Resources>
<StackPanel DataContext="{Binding Source={StaticResource vmMainViewModel}}">
<GroupBox Margin="2" Header="Group 1">
<TextBlock Text="{Binding GuiModelData.Name}" />
</GroupBox>
<GroupBox Margin="2" Header="Group 2">
<TextBlock Text="{Binding GuiModelData.LastName}" />
</GroupBox>
</StackPanel>
</UserControl>
<UserControl x:Class="SplittingViewsInMvvm.Views.Group1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<Grid>
<GroupBox Margin="2" Header="Group 1">
<TextBlock Text="{Binding GuiModelData.Name}" />
</GroupBox>
</Grid>
</UserControl>
<UserControl x:Class="SplittingViewsInMvvm.Views.Group2"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<Grid>
<GroupBox Margin="2" Header="Group 2">
<TextBlock Text="{Binding GuiModelData.LastName}" />
</GroupBox>
</Grid>
</UserControl>
<UserControl x:Class="SplittingViewsInMvvm.Views.Main"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
xmlns:V="clr-namespace:SplittingViewsInMvvm.Views"
xmlns:VM="clr-namespace:SplittingViewsInMvvm.ViewModels"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<VM:MainViewModel x:Key="vmMainViewModel" />
</UserControl.Resources>
<StackPanel DataContext="{Binding Source={StaticResource vmMainViewModel}}">
<V:Group1 />
<V:Group2 />
</StackPanel>
</UserControl>
<UserControl x:Class="SplittingViewsInMvvm.Views.Main"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
xmlns:V="clr-namespace:SplittingViewsInMvvm.Views"
xmlns:VM="clr-namespace:SplittingViewsInMvvm.ViewModels"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<VM:MainViewModel x:Key="vmMainViewModel" />
</UserControl.Resources>
<StackPanel DataContext="{Binding Source={StaticResource vmMainViewModel}}">
<V:Group1 DataContext="{Binding}" />
<V:Group2 DataContext="{Binding}"/>
</StackPanel>
</UserControl>
Thread.CurrentThread.CurrentUICulture = new CultureInfo("fa-IR"); Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture("fa-IR");
[Required(ErrorMessageResourceName = "ResourceKeyName", ErrorMessageResourceType = typeof(<SolutionName>.Resources.<ResourceClassName>))]
public class LocalizationDisplayNameAttribute : DisplayNameAttribute { private readonly DisplayAttribute _display; public LocalizationDisplayNameAttribute(string resourceName, Type resourceType) { _display = new DisplayAttribute { ResourceType = resourceType, Name = resourceName }; } public override string DisplayName { get { try { return _display.GetName(); } catch (Exception) { return _display.Name; } } } }
public class LocalizationDisplayNameAttribute : DisplayNameAttribute { private readonly PropertyInfo nameProperty; public LocalizationDisplayNameAttribute(string displayNameKey, Type resourceType = null) : base(displayNameKey) { if (resourceType != null) nameProperty = resourceType.GetProperty(base.DisplayName, BindingFlags.Static | BindingFlags.Public); } public override string DisplayName { get { if (nameProperty == null) base.DisplayName; return (string)nameProperty.GetValue(nameProperty.DeclaringType, null); } } }
[LocalizationDisplayName("ResourceKeyName", typeof(<SolutionName>.Resources.<ResourceClassName>))]
public class BaseController : Controller { private const string LanguageCookieName = "MyLanguageCookieName"; protected override void ExecuteCore() { var cookie = HttpContext.Request.Cookies[LanguageCookieName]; string lang; if (cookie != null) { lang = cookie.Value; } else { lang = ConfigurationManager.AppSettings["DefaultCulture"] ?? "fa-IR"; var httpCookie = new HttpCookie(LanguageCookieName, lang) { Expires = DateTime.Now.AddYears(1) }; HttpContext.Response.SetCookie(httpCookie); } Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture(lang); base.ExecuteCore(); } }
public class LocalizationActionFilterAttribute : ActionFilterAttribute { private const string LanguageCookieName = "MyLanguageCookieName"; public override void OnActionExecuting(ActionExecutingContext filterContext) { var cookie = filterContext.HttpContext.Request.Cookies[LanguageCookieName]; string lang; if (cookie != null) { lang = cookie.Value; } else { lang = ConfigurationManager.AppSettings["DefaultCulture"] ?? "fa-IR"; var httpCookie = new HttpCookie(LanguageCookieName, lang) { Expires = DateTime.Now.AddYears(1) }; filterContext.HttpContext.Response.SetCookie(httpCookie); } Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture(lang); base.OnActionExecuting(filterContext); } }
<select id="langs" onchange="languageChanged()"> <option value="fa-IR">فارسی</option> <option value="en-US">انگلیسی</option> </select> <script type="text/javascript"> function languageChanged() { setCookie("MyLanguageCookieName", $('#langs').val(), 365); window.location.reload(); } document.ready = function () { $('#langs').val(getCookie("MyLanguageCookieName")); }; function setCookie(name, value, exdays, path) { var exdate = new Date(); exdate.setDate(exdate.getDate() + exdays); var newValue = escape(value) + ((exdays == null) ? "" : "; expires=" + exdate.toUTCString()) + ((path == null) ? "" : "; path=" + path) ; document.cookie = name + "=" + newValue; } function getCookie(name) { var i, x, y, cookies = document.cookie.split(";"); for (i = 0; i < cookies.length; i++) { x = cookies[i].substr(0, cookies[i].indexOf("=")); y = cookies[i].substr(cookies[i].indexOf("=") + 1); x = x.replace(/^\s+|\s+$/g, ""); if (x == name) { return unescape(y); } } } </script>
GET https://www.dntips.ir HTTP/1.1 ... Accept-Language: fa-IR,en-US;q=0.5 ...
Accept-Language: fa-IR,fa;q=0.8,en-US;q=0.5,ar-BH;q=0.3
<system.web> <globalization enableClientBasedCulture="true" uiCulture="auto" culture="auto"></globalization> </system.web>
var langs = filterContext.HttpContext.Request.UserLanguages;
routes.MapRoute( "Localization", // Route name "{lang}/{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults );
public class BaseController : Controller { protected override void ExecuteCore() { var lang = RouteData.Values["lang"]; if (lang != null && !string.IsNullOrWhiteSpace(lang.ToString())) { Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture(lang.ToString()); } base.ExecuteCore(); } }
public class BaseController : Controller { protected override void OnActionExecuted(ActionExecutedContext context) { var view = context.Result as ViewResultBase; if (view == null) return; // not a view var viewName = view.ViewName; view.ViewName = GetGlobalizationViewName(viewName, context); base.OnActionExecuted(context); } private static string GetGlobalizationViewName(string viewName, ControllerContext context) { var cultureName = Thread.CurrentThread.CurrentUICulture.Name; if (cultureName == "en-US") return viewName; // default culture if (string.IsNullOrEmpty(viewName)) return context.RouteData.Values["action"] + "." + cultureName; // "Index.fa" int i; if ((i = viewName.IndexOf('.')) > 0) // ex: Index.cshtml return viewName.Substring(0, i + 1) + cultureName + viewName.Substring(i); // "Index.fa.cshtml" return viewName + "." + cultureName; // "Index" ==> "Index.fa" } }
public sealed class RazorGlobalizationViewEngine : RazorViewEngine { protected override IView CreatePartialView(ControllerContext controllerContext, string partialPath) { return base.CreatePartialView(controllerContext, GetGlobalizationViewPath(controllerContext, partialPath)); } protected override IView CreateView(ControllerContext controllerContext, string viewPath, string masterPath) { return base.CreateView(controllerContext, GetGlobalizationViewPath(controllerContext, viewPath), masterPath); } private static string GetGlobalizationViewPath(ControllerContext controllerContext, string viewPath) { //var controllerName = controllerContext.RouteData.GetRequiredString("controller"); var request = controllerContext.HttpContext.Request; var lang = request.Cookies["MyLanguageCookie"]; if (lang != null && !string.IsNullOrEmpty(lang.Value) && lang.Value != "en-US") { var localizedViewPath = Regex.Replace(viewPath, "^~/Views/", string.Format("~/Views/Globalization/{0}/", lang.Value)); if (File.Exists(request.MapPath(localizedViewPath))) viewPath = localizedViewPath; } return viewPath; }
protected void Application_Start() { ViewEngines.Engines.Clear(); ViewEngines.Engines.Add(new RazorGlobalizationViewEngine()); }
<?xml version="1.0" encoding="utf-8"?> <root> <!-- Microsoft ResX Schema ... --> <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"> ... </xsd:schema> <resheader name="resmimetype"> <value>text/microsoft-resx</value> </resheader> <resheader name="version"> <value>2.0</value> </resheader> <resheader name="reader"> <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value> </resheader> <resheader name="writer"> <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value> </resheader> <data name="RightToLeft" xml:space="preserve"> <value>false</value> <comment>RightToleft is false in English!</comment> </data> </root>
using Microsoft.AspNetCore.Http; using Microsoft.AspNetCore.Mvc.Abstractions; using Microsoft.AspNetCore.Mvc.ModelBinding; using Microsoft.AspNetCore.Mvc.Razor; using Microsoft.AspNetCore.Mvc.Rendering; using Microsoft.AspNetCore.Mvc.ViewFeatures; using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Routing; using Microsoft.Extensions.DependencyInjection.Extensions; using Microsoft.Extensions.DependencyInjection; using System.IO; using System.Threading.Tasks; using System; namespace WebToolkit { public static class RazorViewToStringRendererExtensions { public static IServiceCollection AddRazorViewRenderer(this IServiceCollection services) { services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>(); services.AddScoped<IViewRendererService, ViewRendererService>(); return services; } } public interface IViewRendererService { Task<string> RenderViewToStringAsync(string viewNameOrPath); Task<string> RenderViewToStringAsync<TModel>(string viewNameOrPath, TModel model); } /// <summary> /// Modified version of: https://github.com/aspnet/Entropy/blob/dev/samples/Mvc.RenderViewToString/RazorViewToStringRenderer.cs /// </summary> public class ViewRendererService : IViewRendererService { private readonly IRazorViewEngine _viewEngine; private readonly ITempDataProvider _tempDataProvider; private readonly IServiceProvider _serviceProvider; private readonly IHttpContextAccessor _httpContextAccessor; public ViewRendererService( IRazorViewEngine viewEngine, ITempDataProvider tempDataProvider, IServiceProvider serviceProvider, IHttpContextAccessor httpContextAccessor) { _viewEngine = viewEngine; _tempDataProvider = tempDataProvider; _serviceProvider = serviceProvider; _httpContextAccessor = httpContextAccessor; } public Task<string> RenderViewToStringAsync(string viewNameOrPath) { return RenderViewToStringAsync(viewNameOrPath, string.Empty); } public async Task<string> RenderViewToStringAsync<TModel>(string viewNameOrPath, TModel model) { var actionContext = getActionContext(); var viewEngineResult = _viewEngine.FindView(actionContext, viewNameOrPath, isMainPage: false); if (!viewEngineResult.Success) { viewEngineResult = _viewEngine.GetView("~/", viewNameOrPath, isMainPage: false); if (!viewEngineResult.Success) { throw new FileNotFoundException($"Couldn't find '{viewNameOrPath}'"); } } var view = viewEngineResult.View; using (var output = new StringWriter()) { var viewDataDictionary = new ViewDataDictionary<TModel>(new EmptyModelMetadataProvider(), new ModelStateDictionary()) { Model = model }; var viewContext = new ViewContext( actionContext, view, viewDataDictionary, new TempDataDictionary(actionContext.HttpContext, _tempDataProvider), output, new HtmlHelperOptions()); await view.RenderAsync(viewContext).ConfigureAwait(false); return output.ToString(); } } private ActionContext getActionContext() { var httpContext = _httpContextAccessor?.HttpContext; if (httpContext != null) { return new ActionContext(httpContext, httpContext.GetRouteData(), new ActionDescriptor()); } httpContext = new DefaultHttpContext { RequestServices = _serviceProvider }; return new ActionContext(httpContext, new RouteData(), new ActionDescriptor()); } } }
{ "dependencies": { "Microsoft.AspNetCore.Mvc.ViewFeatures": "1.1.0", "Microsoft.AspNetCore.Mvc.Razor": "1.1.0" } }
public void ConfigureServices(IServiceCollection services) { services.AddRazorViewRenderer(); }
public class RenderController : Controller { private readonly IViewRendererService _viewRenderService; public RenderController(IViewRendererService viewRenderService) { _viewRenderService = viewRenderService; } public async Task<IActionResult> RenderInviteView() { var viewModel = new InviteViewModel { UserId = "1", UserName = "Vahid" }; var emailBody = await _viewRenderService.RenderViewToStringAsync("EmailTemplates/Invite", viewModel).ConfigureAwait(false); //todo: send emailBody return Content(emailBody); } }
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Language" content="fa" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <style type='text/css'> .main { font-size: 9pt; font-family: Tahoma; } </style> </head> <body bgcolor="whitesmoke" style="font-size: 9pt; font-family: Tahoma; background-color: whitesmoke; direction: rtl;"> <div class="main">@RenderBody()</div> </body> </html>
@using Sample.ViewModels @model RegisterEmailConfirmationViewModel @{ Layout = "~/Views/EmailTemplates/_EmailsLayout.cshtml"; } با سلام <br /> اکانت شما با مشخصات ذیل ایجاد گردید: ....
<a style="direction:ltr" href="@Url.Action("Index", "Home", values: new { area = "" }, protocol: this.Context.Request.Scheme)">@Model.EmailSignature</a>
<form asp-controller="Manage" asp-action="ChangePassword" method="post"> <!-- Form details --> </form>
<form method="post" action="/Manage/ChangePassword"> <!-- Form details --> <input name="__RequestVerificationToken" type="hidden" value="CfDJ8NrAkSldwD9CpLR...LongValueHere!" /> </form>
using System; using System.Threading.Tasks; using Microsoft.AspNetCore.Antiforgery; using Microsoft.AspNetCore.Builder; using Microsoft.AspNetCore.Http; namespace AngularTemplateDrivenFormsLab.Utils { public class AntiforgeryTokenMiddleware { private readonly RequestDelegate _next; private readonly IAntiforgery _antiforgery; public AntiforgeryTokenMiddleware(RequestDelegate next, IAntiforgery antiforgery) { _next = next; _antiforgery = antiforgery; } public Task Invoke(HttpContext context) { var path = context.Request.Path.Value; if (path != null && !path.StartsWith("/api/", StringComparison.OrdinalIgnoreCase)) { var tokens = _antiforgery.GetAndStoreTokens(context); context.Response.Cookies.Append( key: "XSRF-TOKEN", value: tokens.RequestToken, options: new CookieOptions { HttpOnly = false // Now JavaScript is able to read the cookie }); } return _next(context); } } public static class AntiforgeryTokenMiddlewareExtensions { public static IApplicationBuilder UseAntiforgeryToken(this IApplicationBuilder builder) { return builder.UseMiddleware<AntiforgeryTokenMiddleware>(); } } }
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory) { app.UseAntiforgeryToken();
public void ConfigureServices(IServiceCollection services) { services.AddAntiforgery(x => x.HeaderName = "X-XSRF-TOKEN"); services.AddMvc(); }
[HttpPost] [ValidateAntiForgeryToken] public IActionResult ChangePassword() { // ... return Json(…); }
public void ConfigureServices(IServiceCollection services) { services.AddAntiforgery(x => x.HeaderName = "X-XSRF-TOKEN"); services.AddMvc(options => { options.Filters.Add(new AutoValidateAntiforgeryTokenAttribute()); }); }
>npm install >ng build --watch
>dotnet restore >dotnet watch run
enable-migrations add-migration Initial -IgnoreChanges update-database
using System.Data.Entity.Migrations; using System.Data.Entity.Migrations.Design; namespace EFTests { /// <summary> /// Using Entity Framework Code First with an existing database. /// </summary> public static class CreateMigrationHistory { /// <summary> /// Creates a new '__MigrationHistory' table. /// Enables migrations using Entity Framework Code First on an existing database. /// </summary> public static void UpdateDatabase(DbMigrationsConfiguration configuration) { var scaffolder = new MigrationScaffolder(configuration); // Creates an empty migration, so that the future migrations will start from the current state of your database. var scaffoldedMigration = scaffolder.Scaffold("IgnoreChanges", ignoreChanges: true); // enable-migrations // add-migration Initial -IgnoreChanges configuration.MigrationsAssembly = new MigrationCompiler(ProgrammingLanguage.CSharp.ToString()) .Compile(configuration.MigrationsNamespace, scaffoldedMigration); // update-database var dbMigrator = new DbMigrator(configuration); dbMigrator.Update(); } } }
using System; using System.CodeDom.Compiler; using System.Collections.Generic; using System.ComponentModel; using System.Data.Common; using System.Data.Entity; using System.Data.Entity.Migrations; using System.Data.Entity.Migrations.Design; using System.Data.Entity.Spatial; using System.IO; using System.Linq; using System.Linq.Expressions; using System.Reflection; using System.Resources; using System.Text; namespace EF_General.Models.Ex22 { public enum ProgrammingLanguage { CSharp, VB } public class MigrationCompiler { private readonly CodeDomProvider _codeProvider; public MigrationCompiler(string language) { _codeProvider = CodeDomProvider.CreateProvider(language); } public Assembly Compile(string @namespace, params ScaffoldedMigration[] scaffoldedMigrations) { var options = new CompilerParameters { GenerateExecutable = false, GenerateInMemory = true }; options.ReferencedAssemblies.Add(typeof(string).Assembly.Location); options.ReferencedAssemblies.Add(typeof(Expression).Assembly.Location); options.ReferencedAssemblies.Add(typeof(DbMigrator).Assembly.Location); options.ReferencedAssemblies.Add(typeof(DbContext).Assembly.Location); options.ReferencedAssemblies.Add(typeof(DbConnection).Assembly.Location); options.ReferencedAssemblies.Add(typeof(Component).Assembly.Location); options.ReferencedAssemblies.Add(typeof(MigrationCompiler).Assembly.Location); options.ReferencedAssemblies.Add(typeof(DbGeography).Assembly.Location); var embededResources = GenerateEmbeddedResources(scaffoldedMigrations, @namespace); foreach (var resource in embededResources) options.EmbeddedResources.Add(resource); var sources = scaffoldedMigrations.SelectMany(g => new[] { g.UserCode, g.DesignerCode }); var compilerResults = _codeProvider.CompileAssemblyFromSource(options, sources.ToArray()); foreach (var resource in embededResources) File.Delete(resource); if (compilerResults.Errors.Count > 0) { throw new InvalidOperationException(BuildCompileErrorMessage(compilerResults.Errors)); } return compilerResults.CompiledAssembly; } private static string BuildCompileErrorMessage(CompilerErrorCollection errors) { var stringBuilder = new StringBuilder(); foreach (CompilerError error in errors) { stringBuilder.AppendLine(error.ToString()); } return stringBuilder.ToString(); } private static IEnumerable<string> GenerateEmbeddedResources(IEnumerable<ScaffoldedMigration> scaffoldedMigrations, string @namespace) { foreach (var scaffoldedMigration in scaffoldedMigrations) { var className = GetClassName(scaffoldedMigration.MigrationId); var embededResource = Path.Combine( Path.GetTempPath(), @namespace + "." + className + ".resources"); using (var writer = new ResourceWriter(embededResource)) { foreach (var resource in scaffoldedMigration.Resources) writer.AddResource(resource.Key, resource.Value); } yield return embededResource; } } private static string GetClassName(string migrationId) { return migrationId .Split(new[] { '_' }, 2) .Last() .Replace(" ", string.Empty); } } }
CreateMigrationHistory.UpdateDatabase(new Configuration());
public class Configuration : DbMigrationsConfiguration<MyContext> { public Configuration() { AutomaticMigrationsEnabled = true; AutomaticMigrationDataLossAllowed = true; } }
public ActionResult Upload(System.Web.HttpPostedFileBase file)