.Net Core
35 results found
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Invalid reference format: repository name must be lowercase in Docker
Error invalid argument for "-t, --tag" flag: invalid reference format: repository name must be lowercase in Docker Ubuntu when I was trying to create a docker image.
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What is difference between addtransient and addscoped in .net core?
What is difference between addtransient and addscoped in .net core 3.1? I try to register all of them also worked well for me. I need particular case to use them.
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InvalidOperationException: Connection property has not been initialized in Asp.Net Core
I get an exception throw System.InvalidOperationException: Connection property has not been initialized in Asp.net Core when I trying to get data from the database
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Clear SOLID with Decorator design pattern in C# ASP.NET Core
The decorator pattern in C# Asp.Net Core is a structural design pattern and it allows developers to dynamically add new behaviors and features to existing classes without modifying them thus respecting the open-closed principle. This pattern lets you structure your business logic into layers (wrappers) in a way that each layer adds some additional behavior or functionality to an existing object, promoting separation of concern.
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Http error 502.5 - process failure in asp.net core 3.1
I got an error Http error 502.5 - process failure in asp.net core 3.1 when I running my project in local window 10
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Asp.Net EF Core error : More than one DbContext was found.
More than one DbContext was found. Specify which one to use. Use the '-Context' parameter for PowerShell commands and the '--context' parameter for dotnet commands.
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Asp.net core error: Unable to create an object of type 'ApplicationDBContext'.
Asp.Net core Entity framework error: Unable to create an object of type 'ApplicationDBContext'. For the different patterns supported at design time
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How to include .html file into a razor file in Asp.Net core?
How to include a .html file into a razor file .cshtml in Asp.Net core 3.1? I tried to use Html.Partial() but it does not work for me.
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How to pass multiple models to one view in Asp.net Core
In MVC we can not pass multiple models to a single view Asp.Net Core. But in the reality, we have many case need to do this. In this article, we will discuss some ways to help resolve this problem.
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Operator '!' cannot be applied to operand of type '<null>' in Asp.Net Core
Asp.net core 3.1 throws an exception Operator '!' cannot be applied to operand of type '' when starting run project
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Either the 'ViewComponentName' or 'ViewComponentType' property must be set in order to invoke a view component.
Throw an error in Asp.Net Core: Either the 'ViewComponentName' or 'ViewComponentType' property must be set in order to invoke a view component.
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Asp.net Core: Duplicate 'global::System.Runtime.Versioning.TargetFrameworkAttribute' atribute
Error CS0579 Duplicate 'global::System.Runtime.Versioning.TargetFrameworkAttribute' attribute In asp.net core 3.1 when build project
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Npgsql Error: exception while reading from stream in Asp.net Core
Npgsql.NpgsqlException (0x80004005): Exception while reading from stream ---> System.IO.IOException: Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
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Asp.Net Core: some services are not able to be constructed
AggregateException: Some services are not able to be constructed. Error while validating the service descriptor 'ServiceType: A Lifetime: Singleton ImplementationType: B': Cannot consume scoped service 'C' from singleton 'A'.
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Asp.Net Core: The connection pool has been exhausted
Npgsql.NpgsqlException (0x80004005): The connection pool has been exhausted, either raise MaxPoolSize (currently 100) or Timeout (currently 15 seconds) in Asp.Net Core