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تغییرات Web API در دات نت 8

Preview 3 of .NET 8 includes a new project templates to create an API with a TODO service instead of the weather forecast . Looking into the generated code of this template, there are a lot more changes going on such as a slim builder and using a JSON source generator which helps when using AOT to create native .NET binaries. This article looks into the changes coming. 

تغییرات Web API در دات نت 8
نظرات مطالب
EF Code First #1
سلام
وقتی کانکش استرینگو به این صورت تعربف می‌کنم :
<configuration>
<configSections>
</configSections>
<connectionStrings>
<clear/>
<add name="Context" connectionString="Data Source=localhost;Initial Catalog=test;Integrated Security = true" providerName="System.Data.SqlClient"/>
</connectionStrings>
<system.web>
<compilation debug="true"/></system.web>
</configuration>

این erorr میده :

An error occurred while getting provider information from the database. This can be caused by Entity Framework using an incorrect connection string. Check the inner exceptions for details and ensure that the connection string is correct. 
علتش چی می‌تونه باشه ؟
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عرضه‌ی اولین نسخه RC برای SQL Server 2017
  • Linux support for tier-1, mission-critical workloads  SQL Server 2017 support for Linux includes the same high availability solutions on Linux as Windows Server, including Always On availability groups integrated with Linux native clustering solutions like Pacemaker.
  • Graph data processing in SQL Server  With the graph data features available in SQL Server 2017and Azure SQL Database, customers can create nodes and edges, and discover complex and many-to-many relationships.
  • Adaptive query processing  Adaptive query processing is a family of features in SQL Server 2017 that automatically keeps database queries running as efficiently as possible without requiring additional tuning from database administrators. In addition to the capability to adjust batch mode memory grants, the feature set includes batch mode adaptive joins and interleaved execution capabilities.
  • Python integration for advanced analytics  Microsoft Machine Learning Services now brings you the ability to run in-database analytics using Python or R in a parallelized and scalable way. The ability to run advanced analytics in your operational store without ETL means faster time to insights for customers while easy deployment and rich extensibility make it fast to get up and running on the right model. 
عرضه‌ی اولین نسخه RC برای SQL Server 2017
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3.Visual Studio 2017 15.8 منتشر شد

These are the customer-reported issues addressed in 15.8.3:

3.Visual Studio 2017 15.8 منتشر شد
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آموزش الگوهای طراحی

 Design patterns represent the best practices used by experienced object-oriented software developers. Design patterns are solutions to general problems that software developers faced during software development. These solutions were obtained by trial and error by numerous software developers over quite a substantial period of time. 

آموزش الگوهای طراحی