Solved Solutions to computer programming Errors

[Entity Framework Core 5] An Unhandled Exception O

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[Entity Framework Core 5] An Unhandled Exception Occurred While Processing the Request

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

.NET 7
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Entity Framework Core Error: To change the IDENTIT

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Entity Framework Core Error: To change the IDENTITY property of a column, the column needs to be dropped and recreated

ENTITY FRAMEWORK
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_context.SaveChanges is not working

ENTITY FRAMEWORK
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_context.SaveChanges is not working

ENTITY FRAMEWORK
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Error The instance of entity type ModalType cannot

.NET 7
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Error The instance of entity type ModalType cannot be tracked because another instance with the key value {id: 7656544} is already being tracked.

.NET 7
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"WaitForWarmupCompletion" task was not given a val

DOCKER
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"WaitForWarmupCompletion" task was not given a value for the required parameter of "Configuration"

DOCKER
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Microsoft.AspNetCore.Antiforgery.AntiforgeryValida

.NET 7
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Microsoft.AspNetCore.Antiforgery.AntiforgeryValidationException: The required antiforgery cookie ".AspNetCore.Antiforgery.9TtSrW0hzOs" is not present

.NET 7
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How to optimize sql query in Microsoft SQL Server

SQL
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How to optimize sql query in Microsoft SQL Server

SQL
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InvalidOperationException: An error was generated

.NET 7
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InvalidOperationException: An error was generated for warning 'Microsoft.EntityFrameworkCore.Query.InvalidIncludePathError': Unable to find navigation 'EntityName' specified in string based include path 'AnotherEntity Name'.

.NET 7
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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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What is New in .Net 5

.NET 7
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What is New in .Net 5

.NET 7
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Chapter 5: Self-Care and Coping Strategies

LIPEDEMA
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Chapter 5: Self-Care and Coping Strategies

LIPEDEMA
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Research About Windows Workflow Framework.

WINDOWS
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Research About Windows Workflow Framework.

WINDOWS
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Asp.Net Core 3.1 2020 Conference Notes

EDUCATION
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Asp.Net Core 3.1 2020 Conference Notes

EDUCATION
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MSB1009: Docker File Error when building Asp.Net 5

.NET 7
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MSB1009: Docker File Error when building Asp.Net 5

.NET 7
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Microsoft.EntityFrameworkCore.Database.Transaction

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Microsoft.EntityFrameworkCore.Database.Transaction[20205] An error occurred using a transaction.

ENTITY FRAMEWORK
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running dotnet in docker exec /usr/bin/dotnet: no

.NET 5
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running dotnet in docker exec /usr/bin/dotnet: no such file or directory

.NET 5
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How to use ContinueWith in an Async Function to Ma

.NET 5
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How to use ContinueWith in an Async Function to Make Sure Thread Executes One after the Other

.NET 5
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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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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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Asp.Net 5 Development Notes (DotNet Core 3.1 Study

SOFTWARE DEVELOPMENT
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Asp.Net 5 Development Notes (DotNet Core 3.1 Study Notes)

SOFTWARE DEVELOPMENT
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Security (Symfony PHP Framework Drupal 8)

TECHNOLOGY
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Security (Symfony PHP Framework Drupal 8)

TECHNOLOGY
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How to choose a Framework when making Web app

COMPUTER PROGRAMMING
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How to choose a Framework when making Web app

COMPUTER PROGRAMMING
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InvalidOperationException, A second operation star

ENTITY FRAMEWORK
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InvalidOperationException, A second operation started on this context before a previous operation completed.

ENTITY FRAMEWORK
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Entity Framework Core Store Procedure with Paramet

SQL
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Entity Framework Core Store Procedure with Parameters does not return results (FromSqlRaw)

SQL
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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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Bootstrap 4 and Boostrap 5 Cards of same height in

BOOTSTRAP
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Bootstrap 4 and Boostrap 5 Cards of same height in columns

BOOTSTRAP
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InvalidOperationException: The required column 'Ca

ENTITY FRAMEWORK
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InvalidOperationException: The required column 'Categoryid' was not present in the results of a 'FromSql' operation

ENTITY FRAMEWORK
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How to Solve XUnit Automated Testing Error: Castle

MVC
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How to Solve XUnit Automated Testing Error: Castle DynamicProxy InvalidProxyConstructorArgumentsException

MVC
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What is Entity Framework Navigation in Asp.Net 6

ENTITY FRAMEWORK
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What is Entity Framework Navigation in Asp.Net 6

ENTITY FRAMEWORK
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The framework 'Microsoft.AspNetCore.App' version'3

DOCKER
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The framework 'Microsoft.AspNetCore.App' version'3.1.0' was not found

DOCKER
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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 Count the Number of records in the Database

.NET 7
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How to Count the Number of records in the Database Table using Asp.Net Core Entity Framework Core

.NET 7
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How to Hide a Div on a Small Screen using Boostrap

TECHNOLOGY
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How to Hide a Div on a Small Screen using Boostrap 5

TECHNOLOGY
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InvalidOperationException: An exception was thrown

ENTITY FRAMEWORK
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InvalidOperationException: An exception was thrown while attempting to evaluate the LINQ query parameter expression

ENTITY FRAMEWORK
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Entity Framework Core Error: Unable to track an en

ENTITY FRAMEWORK
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Entity Framework Core Error: Unable to track an entity of type "Model Class Object" because primary key property 'id' is null

ENTITY FRAMEWORK
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Cassandra Entity Framework Error "TypeLoadExceptio

QUESTIONS
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Cassandra Entity Framework Error "TypeLoadException: Method 'GenerateScript' in type"

QUESTIONS
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Entity Framework Core 6 and 7 Tips and Tricks

ENTITY FRAMEWORK
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Entity Framework Core 6 and 7 Tips and Tricks

ENTITY FRAMEWORK
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What is domain driven design in Asp.Net 8?

RESEARCH
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What is domain driven design in Asp.Net 8?

RESEARCH
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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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Asp.Net 5 Application is losing state when enters

.NET 7
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Asp.Net 5 Application is losing state when enters an Event Handler C-Sharp

.NET 7
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Unable to start Kestrel. Internal.Cryptograp

QUESTIONS
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Unable to start Kestrel. Internal.Cryptography.CryptoThrowHelper+WindowsCryptographicException: Cannot find the requested object. at Internal.Cryptography.Pal.CertificatePal.FromBlobOrFile(ReadOnlySpan`1 rawData, String fileName, SafePasswordHandle password, X509KeyStorageFlags keyStorageFlags)

QUESTIONS
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Microsoft Unit Test Project Won't Run in C# Applic

TECHNOLOGY
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Microsoft Unit Test Project Won't Run in C# Application

TECHNOLOGY
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How to Enable net.tcp net.msmq and net.pip in IIS

SERVERS
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How to Enable net.tcp net.msmq and net.pip in IIS Web Server on Windows Server

SERVERS
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Weird Issues with SQL Server, Visual Studio and En

RESEARCH
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Weird Issues with SQL Server, Visual Studio and Entity-Framework

RESEARCH
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Dotnet 8 publishing Self-Contained Application not

Dotnet 8 publishing Self-Contained Application not Working

OTHER
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Invalid column name '*_ID'

ENTITY FRAMEWORK
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Invalid column name '*_ID'

ENTITY FRAMEWORK
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SqlExeption: Cannot insert explicit value for iden

SQL
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SqlExeption: Cannot insert explicit value for identity column in table when IDENTITY_INSERT is set to OFF

SQL
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Entiity Framework 5

[Entity Framework Core 5] An Unhandled Exception O

[Entity Framework Core 5] An Unhandled Exception Occurred While Processing the Request

Performance Tuning in Entity Framework Core 5 and

Performance Tuning in Entity Framework Core 5 and AspNet 5

What is New in Entity Framework 5 Shipped in Asp.N

What is New in Entity Framework 5 Shipped in Asp.Net 5

_context.ChangeTracker 'threw an exception of type

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

Entity Framework Core Error: To change the IDENTIT

Entity Framework Core Error: To change the IDENTITY property of a column, the column needs to be dropped and recreated

_context.SaveChanges is not working

_context.SaveChanges is not working

Error The instance of entity type ModalType cannot

Error The instance of entity type ModalType cannot be tracked because another instance with the key value {id: 7656544} is already being tracked.

"WaitForWarmupCompletion" task was not given a val

"WaitForWarmupCompletion" task was not given a value for the required parameter of "Configuration"

Microsoft.AspNetCore.Antiforgery.AntiforgeryValida

Microsoft.AspNetCore.Antiforgery.AntiforgeryValidationException: The required antiforgery cookie ".AspNetCore.Antiforgery.9TtSrW0hzOs" is not present

How to optimize sql query in Microsoft SQL Server

How to optimize sql query in Microsoft SQL Server

InvalidOperationException: An error was generated

InvalidOperationException: An error was generated for warning 'Microsoft.EntityFrameworkCore.Query.InvalidIncludePathError': Unable to find navigation 'EntityName' specified in string based include path 'AnotherEntity Name'.

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

What is New in .Net 5

What is New in .Net 5

Chapter 5: Self-Care and Coping Strategies

Chapter 5: Self-Care and Coping Strategies

Research About Windows Workflow Framework.

Research About Windows Workflow Framework.

Asp.Net Core 3.1 2020 Conference Notes

Asp.Net Core 3.1 2020 Conference Notes

MSB1009: Docker File Error when building Asp.Net 5

MSB1009: Docker File Error when building Asp.Net 5

Microsoft.EntityFrameworkCore.Database.Transaction

Microsoft.EntityFrameworkCore.Database.Transaction[20205] An error occurred using a transaction.

running dotnet in docker exec /usr/bin/dotnet: no

running dotnet in docker exec /usr/bin/dotnet: no such file or directory

How to use ContinueWith in an Async Function to Ma

How to use ContinueWith in an Async Function to Make Sure Thread Executes One after the Other

The name 'Category' does not exist in the current

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

The type namespace QuickGrid could not be found

The type namespace QuickGrid could not be found

Asp.Net 5 Development Notes (DotNet Core 3.1 Study

Asp.Net 5 Development Notes (DotNet Core 3.1 Study Notes)

Security (Symfony PHP Framework Drupal 8)

Security (Symfony PHP Framework Drupal 8)

How to choose a Framework when making Web app

How to choose a Framework when making Web app

InvalidOperationException, A second operation star

InvalidOperationException, A second operation started on this context before a previous operation completed.

Entity Framework Core Store Procedure with Paramet

Entity Framework Core Store Procedure with Parameters does not return results (FromSqlRaw)

InvalidOperationExecption: The property 'EntityNam

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

Bootstrap 4 and Boostrap 5 Cards of same height in

Bootstrap 4 and Boostrap 5 Cards of same height in columns

InvalidOperationException: The required column 'Ca

InvalidOperationException: The required column 'Categoryid' was not present in the results of a 'FromSql' operation

How to Solve XUnit Automated Testing Error: Castle

How to Solve XUnit Automated Testing Error: Castle DynamicProxy InvalidProxyConstructorArgumentsException

What is Entity Framework Navigation in Asp.Net 6

What is Entity Framework Navigation in Asp.Net 6

The framework 'Microsoft.AspNetCore.App' version'3

The framework 'Microsoft.AspNetCore.App' version'3.1.0' was not found

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

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

How to Count the Number of records in the Database

How to Count the Number of records in the Database Table using Asp.Net Core Entity Framework Core

How to Hide a Div on a Small Screen using Boostrap

How to Hide a Div on a Small Screen using Boostrap 5

InvalidOperationException: An exception was thrown

InvalidOperationException: An exception was thrown while attempting to evaluate the LINQ query parameter expression

Entity Framework Core Error: Unable to track an en

Entity Framework Core Error: Unable to track an entity of type "Model Class Object" because primary key property 'id' is null

Cassandra Entity Framework Error "TypeLoadExceptio

Cassandra Entity Framework Error "TypeLoadException: Method 'GenerateScript' in type"

Entity Framework Core 6 and 7 Tips and Tricks