Solved Solutions to computer programming Errors

The 'Microsoft.AspNetCore.Mvc.ViewFeature.Infrastr

.NET 7
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The 'Microsoft.AspNetCore.Mvc.ViewFeature.Infrastructure.DefaultTempDataSerializer' cannot serialize an object of type 'System.Decimal'

.NET 7
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WPF Error: System.InvalidOperationException 'The c

QUESTIONS
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WPF Error: System.InvalidOperationException 'The calling thread cannot access this object because a different thread owns it.'

QUESTIONS
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RuntimeBinderException: 'System.Dynamic.DynamicObj

.NET 7
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RuntimeBinderException: 'System.Dynamic.DynamicObject'does not contain a definition for 'Modal'

.NET 7
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How to Solve XUnit Automated Testing Error: Castle DynamicProxy InvalidProxyConstructorArgumentsException

MVC
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How to Deserialize XML into Object in Asp.Net Core

.NET 7
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How to Deserialize XML into Object in Asp.Net Core 3.1

.NET 7
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Scaling Asp.Net 6 Application using Docker Swarm

DOCKER
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Scaling Asp.Net 6 Application using Docker Swarm

DOCKER
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How to upgrade Asp.Net 5 Application to Asp.Net 6

.NET 7
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How to upgrade Asp.Net 5 Application to Asp.Net 6 Nuget Packages not upgrading

.NET 7
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Why is AspNet 6 Application always running in Prod

.NET 7
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Why is AspNet 6 Application always running in Production Mode

.NET 7
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Web API 415: Unsupported Media Type

TUTORIALS
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Web API 415: Unsupported Media Type

TUTORIALS
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InvalidOperationException: <ClassName xmlns='http:

.NET 7
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InvalidOperationException: <ClassName xmlns='http://tempuri.org/'/> was not expected

.NET 7
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InvalidOperation: The connection was not closed. T

ENTITY FRAMEWORK
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InvalidOperation: The connection was not closed. The connections current state is connecting

ENTITY FRAMEWORK
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NotSupportedException: Path 'wwwroot myfolder file

.NET 7
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NotSupportedException: Path 'wwwroot myfolder filename.txt' was not rooted

.NET 7
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SqlException: A connection was successfully establ

.NET 7
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SqlException: A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)

.NET 7
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Asp.Net Adding Object to Database Error: Collectio

.NET 7
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Asp.Net Adding Object to Database Error: Collection was modified; enumeration operation may not execute

.NET 7
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Error unprotecting the session cookie

QUESTIONS
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Error unprotecting the session cookie

QUESTIONS
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_context.ChangeTracker 'threw an exception of type

.NET 7
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_context.ChangeTracker 'threw an exception of type 'System.ObjectDisposedException'

.NET 7
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Asp.Net Core MVC Razor View Form not posting data

.NET 7
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Asp.Net Core MVC Razor View Form not posting data to the Server-Side

.NET 7
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How to Integrate Google Search Console API in Asp.

How to Integrate Google Search Console API in Asp.Net Core using C#

OTHER
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AspNet MVC ViewData Error: InvalidOperationExcepti

QUESTIONS
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AspNet MVC ViewData Error: InvalidOperationException: There is no ViewData item of type 'IEnumerable<SelectListItem>' that has key 'Type'

QUESTIONS
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Why is AspNet 6 System DateTime showing Chinese Ch

.NET 7
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Why is AspNet 6 System DateTime showing Chinese Characters

.NET 7
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The name 'Category' does not exist in the current

.NET 5
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The name 'Category' does not exist in the current context

.NET 5
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'Windows-1252' is not a supported encoding name. F

QUESTIONS
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'Windows-1252' is not a supported encoding name. For information on defining a custom encoding see the documentation for the Encoding.RegisterProvider method

QUESTIONS
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The type namespace QuickGrid could not be found

.NET 5
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The type namespace QuickGrid could not be found

.NET 5
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Why is dotnet watch run not showing changes in the

.NET 7
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Why is dotnet watch run not showing changes in the View or Razor Pages

.NET 7
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Exited with error code -532462766

.NET 7
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Exited with error code -532462766

.NET 7
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InvalidOperationExecption: The property 'EntityNam

ENTITY FRAMEWORK
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InvalidOperationExecption: The property 'EntityName.Id' is part of a key and so cannot be modified or marked as modified.

ENTITY FRAMEWORK
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ASP.NET 8 Best Practices: Coding, Performance Tips

.NET 7
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ASP.NET 8 Best Practices: Coding, Performance Tips, and Tricks

.NET 7
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Unable to stop debugging. Operation not supported.

.NET 7
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Unable to stop debugging. Operation not supported. Unknown error: 0x800004005

.NET 7
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Asp.Net Core 3.1 Error The 'inject' directive exp

.NET 7
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Asp.Net Core 3.1 Error The 'inject' directive expects an identifier

.NET 7
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How to Sign Out a User when Session Expires in Asp

.NET 7
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How to Sign Out a User when Session Expires in AspNetCore

.NET 7
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ObjectDisposedException: Cannot access a disposed

.NET 7
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ObjectDisposedException: Cannot access a disposed context instance. A common cause of this error is disposing a context instance that was resolved from dependency injection and then later trying to use the same context instance elsewhere in your application

.NET 7
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[Solved] cannot apply indexing with [] to an expre

TECHNOLOGY
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[Solved] cannot apply indexing with [] to an expression of type QueryString

TECHNOLOGY
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How to Keep Decimal (in Cents) Precision without T

.NET 7
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How to Keep Decimal (in Cents) Precision without Truncating Zeros e.g. 0.04 as to 0.4

.NET 7
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InvalidOperationException: No service for type Mic

.NET 7
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InvalidOperationException: No service for type Microsoft AspNetCore Identity UserManager 1[Microsoft AspNetCore identity IdentityUser] has been registered

.NET 7
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Should I use Configurer Await False in AspNet 6

.NET 7
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Should I use Configurer Await False in AspNet 6

.NET 7
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What is Async Await in AspNet 6 (C-Sharp)

.NET 7
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What is Async Await in AspNet 6 (C-Sharp)

.NET 7
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[Solved] Entity Framework Core (EF 6) Error: Unabl

ENTITY FRAMEWORK
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[Solved] Entity Framework Core (EF 6) Error: Unable to track an entity of type 'YourModalName' because primary key property 'id' is null.

ENTITY FRAMEWORK
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how to use speech in asp.net core

.NET 7
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how to use speech in asp.net core

.NET 7
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Return url is required

.NET 7
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Return url is required

.NET 7
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Visual Studio "Cannot detach from one or more proc

TOOLS
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Visual Studio "Cannot detach from one or more process" Object is in a zombie state. Do you want to terminate them instead

TOOLS
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Cannot consume scoped service Microsoft.AspNetCore

.NET 7
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Cannot consume scoped service Microsoft.AspNetCore.Identity.IRoleStore from singleton 'Microsoft.AspNetCore.Identity.RoleManager

.NET 7
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Asp.Net Core 3.1 Entity Framwork Database Context

.NET 7
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Asp.Net Core 3.1 Entity Framwork Database Context Error: System.ObjectDisposedException: 'Cannot access a disposed object

.NET 7
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found multiple publish output files with the same

.NET 7
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found multiple publish output files with the same relative path "Conflict resolution target" Publishing AspNet 6 in Visual Studio 2022

.NET 7
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Uncaught SyntaxError: "[object Object]" is not val

HTML5
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Uncaught SyntaxError: "[object Object]" is not valid JSON

HTML5
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Asp.Net MVC Development Notes

.NET 7
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Asp.Net MVC Development Notes

.NET 7
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How to draw an eye in eight steps

ART
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How to draw an eye in eight steps

ART
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Best way to create a Form in MVC (aspnet 6)

.NET 7
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Best way to create a Form in MVC (aspnet 6)

.NET 7
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C-Sharp 11 Tips and Tricks

RESEARCH
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C-Sharp 11 Tips and Tricks

RESEARCH
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Serialze object in Asp.Net 6

The 'Microsoft.AspNetCore.Mvc.ViewFeature.Infrastr

The 'Microsoft.AspNetCore.Mvc.ViewFeature.Infrastructure.DefaultTempDataSerializer' cannot serialize an object of type 'System.Decimal'

WPF Error: System.InvalidOperationException 'The c

WPF Error: System.InvalidOperationException 'The calling thread cannot access this object because a different thread owns it.'

RuntimeBinderException: 'System.Dynamic.DynamicObj

RuntimeBinderException: 'System.Dynamic.DynamicObject'does not contain a definition for 'Modal'

What is Entity Framework Navigation in Asp.Net 6

What is Entity Framework Navigation in Asp.Net 6

Check if url contains text in C# (asp.net 6)

Check if url contains text in C# (asp.net 6)

How to Solve XUnit Automated Testing Error: Castle

How to Solve XUnit Automated Testing Error: Castle DynamicProxy InvalidProxyConstructorArgumentsException

How to Deserialize XML into Object in Asp.Net Core

How to Deserialize XML into Object in Asp.Net Core 3.1

Scaling Asp.Net 6 Application using Docker Swarm

Scaling Asp.Net 6 Application using Docker Swarm

How to upgrade Asp.Net 5 Application to Asp.Net 6

How to upgrade Asp.Net 5 Application to Asp.Net 6 Nuget Packages not upgrading

Why is AspNet 6 Application always running in Prod

Why is AspNet 6 Application always running in Production Mode

Web API 415: Unsupported Media Type

Web API 415: Unsupported Media Type

InvalidOperationException: <ClassName xmlns='http:

InvalidOperationException: <ClassName xmlns='http://tempuri.org/'/> was not expected

InvalidOperation: The connection was not closed. T

InvalidOperation: The connection was not closed. The connections current state is connecting

NotSupportedException: Path 'wwwroot myfolder file

NotSupportedException: Path 'wwwroot myfolder filename.txt' was not rooted

SqlException: A connection was successfully establ

SqlException: A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)

Asp.Net Adding Object to Database Error: Collectio

Asp.Net Adding Object to Database Error: Collection was modified; enumeration operation may not execute

Error unprotecting the session cookie

Error unprotecting the session cookie

_context.ChangeTracker 'threw an exception of type

_context.ChangeTracker 'threw an exception of type 'System.ObjectDisposedException'

Asp.Net Core MVC Razor View Form not posting data

Asp.Net Core MVC Razor View Form not posting data to the Server-Side

How to Integrate Google Search Console API in Asp.

How to Integrate Google Search Console API in Asp.Net Core using C#

AspNet MVC ViewData Error: InvalidOperationExcepti

AspNet MVC ViewData Error: InvalidOperationException: There is no ViewData item of type 'IEnumerable<SelectListItem>' that has key 'Type'

Why is AspNet 6 System DateTime showing Chinese Ch

Why is AspNet 6 System DateTime showing Chinese Characters

The name 'Category' does not exist in the current

The name 'Category' does not exist in the current context

'Windows-1252' is not a supported encoding name. F

'Windows-1252' is not a supported encoding name. For information on defining a custom encoding see the documentation for the Encoding.RegisterProvider method

The type namespace QuickGrid could not be found

The type namespace QuickGrid could not be found

Why is dotnet watch run not showing changes in the

Why is dotnet watch run not showing changes in the View or Razor Pages

Exited with error code -532462766

Exited with error code -532462766

InvalidOperationExecption: The property 'EntityNam

InvalidOperationExecption: The property 'EntityName.Id' is part of a key and so cannot be modified or marked as modified.

ASP.NET 8 Best Practices: Coding, Performance Tips

ASP.NET 8 Best Practices: Coding, Performance Tips, and Tricks

Unable to stop debugging. Operation not supported.

Unable to stop debugging. Operation not supported. Unknown error: 0x800004005

Asp.Net Core 3.1 Error The 'inject' directive exp

Asp.Net Core 3.1 Error The 'inject' directive expects an identifier

How to Sign Out a User when Session Expires in Asp

How to Sign Out a User when Session Expires in AspNetCore

ObjectDisposedException: Cannot access a disposed

ObjectDisposedException: Cannot access a disposed context instance. A common cause of this error is disposing a context instance that was resolved from dependency injection and then later trying to use the same context instance elsewhere in your application

[Solved] cannot apply indexing with [] to an expre

[Solved] cannot apply indexing with [] to an expression of type QueryString

How to Keep Decimal (in Cents) Precision without T

How to Keep Decimal (in Cents) Precision without Truncating Zeros e.g. 0.04 as to 0.4

InvalidOperationException: No service for type Mic

InvalidOperationException: No service for type Microsoft AspNetCore Identity UserManager 1[Microsoft AspNetCore identity IdentityUser] has been registered

Should I use Configurer Await False in AspNet 6

Should I use Configurer Await False in AspNet 6

What is Async Await in AspNet 6 (C-Sharp)

What is Async Await in AspNet 6 (C-Sharp)

[Solved] Entity Framework Core (EF 6) Error: Unabl

[Solved] Entity Framework Core (EF 6) Error: Unable to track an entity of type 'YourModalName' because primary key property 'id' is null.

how to use speech in asp.net core