سیلورلایت 5 و تاریخ شمسی
.NotSupportedException: The method 'Max' is not supported
This topic provides information about the way in which LINQ queries are composed and executed when you are using the WCF Data Services client and limitations of using LINQ to query a data service that implements the Open Data Protocol (OData). For more information about composing and executing queries against an OData-based data service, see Querying the Data Service (WCF Data Services). Composing LINQ Queries LINQ enables you to compose queries against a collection of objects that implements IEnumerable. Both the Add Service Reference dialog box in Visual Studio and the DataSvcUtil.exe tool are used to generate a representation of an OData service as an entity container class that inherits from DataServiceContext, as well as objects that represent the entities returned in feeds. These tools also generate properties on the entity container class for the collections that are exposed as feeds by the service. Each of these properties of the class that encapsulates the data service return a DataServiceQuery. Because the DataServiceQuery class implements the IQueryable interface defined by LINQ, the WCF Data Services you can compose a LINQ query against feeds exposed by the data service, which are translated by the client library into a query request URI that is sent to the data service on execution. Note: The set of queries expressible in the LINQ syntax is broader than those enabled in the URI syntax that is used by OData data services. A NotSupportedException is raised when the query cannot be mapped to a URI in the target data service. For more information, see the Unsupported LINQ Methods in this topic.
A few of the customer-requested updates in Microsoft SQL Server 2014 SP1 are:
- Column store performance is improved when batch mode operators spill over to disk. A new XEvent provides insights into column store inserts.
- Several issues in buffer pool extension SSD configuration are addressed, including the ability to do instant initialization of the buffer pool extension file.
- Certain queries compile faster when using new cardinality estimator, and other cardinality estimation query plans are more efficient when using TF-4199.
- The scalability benefits of two trace flags (TF-1236, TF-9024) are applied automatically.
- Backup header information retrieval works better with encrypted backups.
Enter Rider. Over the last few years our team has adopted Rider as our primary IDE. It has an HTTP Client built in which has completely solved our problems with only a little work.
Security is one of the most important aspects of any application – and when we talk about security, particularly in ASP.NET applications, it is not limited to development. A secure app involves multiple layers of security in the configuration, framework, web server, database server, and more. In this post, we’ll take a look at the top nine tips for writing secure applications in ASP.NET.
7.Visual Studio 2017 15.9 منتشر شد
These are the customer-reported issues addressed in 15.9.7:
- Crashes when expanding variables!.
- /DEBUG:FASTLINK + C7 + PCH crashes debugger.
- Native C++ application crashes because of stack corruption with VS 2017 15.9.2.
- Incorrect Release Mode code.
- Xamarin Unobserved Task Exception WebRequest.
- Link /SOURCELINK option seems to do nothing. This fixes Source Link for Managed C++ Debugging.
- Fixed an issue with corruption of AVX/MPX/AVX512 registers while Debugging.
- Update of Microsoft.VCLibs.140.00.UWPDestkop framework packages for C++ UWP DesktopBridge applications adding support for ARM64.
- Corrected incorrect version of VCToolsRedistVersion in Microsoft.VCToolsVersion.default.props.
- Corrected unsigned embedded dll for VC Redist installers.
- SSDT/Web Tools: We fixed an issue where SQL LocalDB was not installed on Polish, Turkish, and Czech locales.
- SSDT: We fixed an issue affecting SQL Server Analysis Services (Method not found exception when clicking on UI).
- SSDT: We fixed an accessibility issue which was causing the contents of a table not to be visible in the result window when using High-Contrast mode.
Security Advisory Notices
#Script is a simple, fast, highly versatile and embeddable scripting language for .NET Core and .NET Apps that utilizes a familiar JavaScript inspired expressive Syntax to enable dynamic scripting of .NET Apps via controlled access to pluggable methods and arguments within a sandbox environment - ensuring scripts are encapsulated and encourages the use of reusable and testable components where live environments can be easily re-created and simulated.
ASP.NET is one of the most successful web application development frameworks by Microsoft. With every update, new and extended features are added that help developers deploy highly scalable and high-performance web applications.
When coupled with application monitoring and other performance tools, such as a profiler, ASP.NET becomes a powerful solution for building incredible apps.
Within the framework itself, there are myriad features to help you overcome common development challenges, do more with your apps, and boost performance.