Unable to update database to match the current model because there are pending changes and
automatic migration is disabled. Either write the pending model changes to a code-based migration
or enable automatic migration. Set DbMigrationsConfiguration.AutomaticMigrationsEnabled to true
to enable automatic migration.
Add-Migration AddSomeProp2ToProject
namespace EF_Sample02.Migrations
{
using System.Data.Entity.Migrations;
public partial class AddSomeProp2ToProject : DbMigration
{
public override void Up()
{
AddColumn("Projects", "SomeProp", c => c.String());
AddColumn("Projects", "SomeProp2", c => c.String());
}
public override void Down()
{
DropColumn("Projects", "SomeProp2");
DropColumn("Projects", "SomeProp");
}
}
}
Update-Database -Verbose
Using NuGet project 'EF_Sample02'.
Using StartUp project 'EF_Sample02'.
Target database is: 'testdb2012' (DataSource: (local), Provider: System.Data.SqlClient, Origin: Configuration).
Applying explicit migrations: [201205061835024_AddSomeProp2ToProject].
Applying explicit migration: 201205061835024_AddSomeProp2ToProject.
ALTER TABLE [Projects] ADD [SomeProp] [nvarchar](max)
ALTER TABLE [Projects] ADD [SomeProp2] [nvarchar](max)
[Inserting migration history record]
Add-Migration AddSomeProp3ToProject
Update-Database -Verbose
get-help update-database -detailed
Update-Database -TargetMigration:"AddSomeProp2ToProject" -Verbose
Using NuGet project 'EF_Sample02'.
Using StartUp project 'EF_Sample02'.
Target database is: 'testdb2012' (DataSource: (local), Provider: System.Data.SqlClient, Origin: Configuration).
Reverting migrations: [201205061845485_AddSomeProp3ToProject].
Reverting explicit migration: 201205061845485_AddSomeProp3ToProject.
DECLARE @var0 nvarchar(128)
SELECT @var0 = name
FROM sys.default_constraints
WHERE parent_object_id = object_id(N'Projects')
AND col_name(parent_object_id, parent_column_id) = 'SomeProp3';
IF @var0 IS NOT NULL
EXECUTE('ALTER TABLE [Projects] DROP CONSTRAINT ' + @var0)
ALTER TABLE [Projects] DROP COLUMN [SomeProp3]
[Deleting migration history record]
namespace EF_Sample02.Migrations
{
using System.Data.Entity.Migrations;
public partial class AddSomeProp3ToProject : DbMigration
{
public override void Up()
{
AddColumn("Projects", "SomeProp3", c => c.String(defaultValue: "some data"));
Sql("Update Projects set SomeProp3=N'some data'");
}
public override void Down()
{
DropColumn("Projects", "SomeProp3");
}
}
}
public ColumnModel String(bool? nullable = null, int? maxLength = null, bool? fixedLength = null,
bool? isMaxLength = null, bool? unicode = null, string defaultValue = null, string defaultValueSql = null,
string name = null, string storeType = null)
ALTER TABLE [Projects] ADD [SomeProp3] [nvarchar](max) DEFAULT 'some data'
namespace EF_Sample02.Migrations
{
using System;
using System.Data.Entity.Migrations;
internal sealed class Configuration : DbMigrationsConfiguration<EF_Sample02.Sample2Context>
{
public Configuration()
{
this.AutomaticMigrationsEnabled = false;
this.AutomaticMigrationDataLossAllowed = true;
}
protected override void Seed(EF_Sample02.Sample2Context context)
{
context.Users.AddOrUpdate(
a => a.Name,
new Models.User { Name = "Vahid", AddDate = DateTime.Now },
new Models.User { Name = "Test", AddDate = DateTime.Now });
}
}
}
Update-Database -Verbose -Script
ALTER TABLE [Projects] ADD [SomeProp5] [nvarchar](max)
INSERT INTO [__MigrationHistory] ([MigrationId], [CreatedOn], [Model], [ProductVersion]) VALUES
('201205060852004_AutomaticMigration', '2012-05-06T08:52:00.937Z', 0x1F8B0800000............ '4.3.1')
Update-Database -Verbose -Script -SourceMigration:"stepName"
Add-Migration AddSomePropToProject
Update-Database -Verbose -Script
Introduction to .NET Microservices (.NET 8)
In this Introduction course, we will learn Microservices with .NET 8 (MVC).
Microservices is an upcoming technology, where it is very easy to scale and break down large project in simple and manageable services.
In this course we will build multiple services and see how they function together by communicating in synchronous and asynchronous manner.
⭐️ Course Contents ⭐️
⌨️ (0:00:01) Section 1 - Welcome & Getting Started
⌨️ (0:28:15) Section 2 - Coupon API - Fundamentals
⌨️ (1:15:54) Section 3 - Coupon API - CRUD
⌨️ (2:21:24) Section 4 - Auth API
⌨️ (3:20:08) Section 5 - Consuming Auth API
⌨️ (4:26:53) Section 6 - Product API
⌨️ (4:57:59) Section 7 - Home and Details Page
⌨️ (5:09:35) Section 8 - Shopping Cart
⌨️ (6:08:04) Section 9 - Shopping Cart in Web Project
⌨️ (6:58:06) Section 10 - Service Bus
⌨️ (7:23:42) Section 11 - Email API - Service Bus
⌨️ (7:54:11) What's Next?
High performance Linq-style extension methods for arrays and lists.
متدهای کمکی Linq با پرفرمنس بالا
High performance Linq-style extension methods that use System.Numerics SIMD for arrays and lists.
متدهای کمکی Linq با پرفرمنس بالا با استفاده از تکنولوژی SIMD و ^
Provides multithreaded Linq-Like extensions for arrays and lists.
متدهای کمکی Linq با پرفرمنس بالا با استفاده از پردازش موازی/Multi-Threading
High performance Linq-style extension methods that are multithreaded and use System.Numerics SIMD for arrays and lists.
متدهای کمکی Linq با پرفرمنس بالا با استفاده از تکنولوژی SIMD و پردازش موازی/Multi-Threading
What's the big deal with IAsyncEnumerable<T> in .NET Core 3.0?
[HttpGet]
public IAsyncEnumerable<Product> Get()
=> productsRepository.GetAllProducts(); 
[HttpGet]
public IAsyncEnumerable<Product> Get()
=> productsRepository.GetAllProducts(); کتابخانه ای جهت ساخت راهنمای استفاده از برنامه می‌باشد که به صورت Interactive می‌توانید با کاربر در تعامل باشید و طرز کار برنامه را به او آموزش دهید.
نسخه جاوا و اندروید استودیو:
https://github.com/deano2390/MaterialShowcaseView
نسخه‌ی C# و زامارین که توسط @mkhoshbakht بازنویسی شده است:
https://github.com/meysamrt/MaterialShowcaseView
نصب از طریق NuGet:
Package Manager:
PM> Install-Package MaterialShowcaseView
.NET CLI:
> dotnet add package MaterialShowcaseView
| package | count |
|---|---|
| Newtonsoft.Json | 45,055 |
| Microsoft.Web.Infrastructure | 16,022 |
| Microsoft.AspNet.Razor | 15,109 |
| Microsoft.AspNet.WebPages | 14,495 |
| Microsoft.AspNet.Mvc | 14,236 |
| EntityFramework | 14,191 |
| Microsoft.AspNet.WebApi.Client | 13,480 |
| Microsoft.AspNet.WebApi.Core | 12,210 |
| Microsoft.Net.Http | 11,625 |
| jQuery | 10,646 |
| Microsoft.Bcl.Build | 10,641 |
| Microsoft.Bcl | 10,349 |
| NUnit | 10,341 |
| Owin | 9,681 |
| Microsoft.Owin | 9,202 |
| Microsoft.AspNet.WebApi.WebHost | 9,007 |
| WebGrease | 8,743 |
| Microsoft.AspNet.Web.Optimization | 8,721 |
| Microsoft.AspNet.WebApi | 8,179 |
- Added .NET 3.5, 4.0 and 4.5 profiles to the NuGet package. PM> Install-Package PdfReport - Updated the project to use itextsharp.dll 5.5.4.0. - Fixed issue #2392. - Fixed reopening of MemoryStreams. - Added `Merge In-Memory Pdf Files` sample. - Improved Grouping/GroupingPdfReport.cs sample to show how to inject an arbitrary HTML data at the end of the each group.
Rebuilding EF Providers for EF6 Updating Applications to use EF6 EF Tools: adding EF6 support & enabling out-of-band releases Async Query and Save Connection Resiliency Code-Based Configuration Dependency Resolution Interception/SQL logging Custom implementations of Equals or GetHashCode on entity classes Custom Code First Conventions Code First Mapping to Insert/Update/Delete Stored Procedures Configurable Migrations History Table Multiple Contexts per Database
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlCeConnectionFactory, EntityFramework">
<parameters>
<parameter value="System.Data.SqlServerCe.4.0" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlServerCe.4.0" type="System.Data.Entity.SqlServerCompact.SqlCeProviderServices, EntityFramework.SqlServerCompact" />
</providers>
</entityFramework> Update-Package EntityFramework
<!-- 1. Change in <configuration><configSections> -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.4.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<!-- 2. Add in <entityFramework><providers> -->
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" /> PM> Install-Package EntityFramework.SqlServerCompact