Solved Solutions to computer programming Errors

InvalidOperationException: There is no ViewData it

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InvalidOperationException: There is no ViewData item of type 'IEnumerable<SelectListItem>' that has the key 'Department'

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

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The content in the request produced errors while p

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The content in the request produced errors while parsing. Check that the content is correctly formatted for the Content-Type provided.

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How to get localized string from ASP.NET Core Cont

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How to get localized string from ASP.NET Core Controller Work Around

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An unhandled exception occurred while processing t

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An unhandled exception occurred while processing the request "The view 'ViewName' was not found. The following locations were searched"

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How to get a base url for Asp.Net Core Application

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How to get a base url for Asp.Net Core Application in the Razor View Page

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How to Write to PDF using an Open Source Library c

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How to Write to PDF using an Open Source Library called iText 7 in Asp.Net Core [Writer Library (iText7 AGPL License)]

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How to Format a String to a Two Decimal Places in

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How to Format a String to a Two Decimal Places in ASP.NET Core 3.1 MVC View ()

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Asp.Net Core Error: InvalidOperationException: The

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Asp.Net Core Error: InvalidOperationException: The model item passed into the ViewDataDictionary is of type '<>f__AnonymousType7`2[System.Int32,System.String]', but this ViewDataDictionary instance requires a model item of type 'Modal'.

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Razor MVC Error : An Expression Tree may not conta

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Razor MVC Error : An Expression Tree may not contain a dynamic operation

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[Solved] Entity Framework Core Asp.Net Core 3.1 Er

SQL
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[Solved] Entity Framework Core Asp.Net Core 3.1 Error: SqlException: The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value. The statement has been terminated

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Solved!! Dot Net Core 3.1 Error: Inspecting the st

DATABASES
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Solved!! Dot Net Core 3.1 Error: Inspecting the state of an object in the debuggee of type System.Reflection.MethodBase is not supported in this context

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

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

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InvalidOperationException: A view component named

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InvalidOperationException: A view component named 'NameHere' could not be found. A view component must be a public non-abstract class, not contain any generic parameters, and either be decorated with 'ViewComponentAttribute' or have a class name ending with the 'ViewComponent' suffix. A view component must not be decorated with 'NonViewComponentAttribute'

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Asp.Net Core 3.1 Razor View Error: CS1963: An expr

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Asp.Net Core 3.1 Razor View Error: CS1963: An expression tree may not contain a dynamic operation

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System.InvalidOperationException: The view 'Index'

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System.InvalidOperationException: The view 'Index' was not found. The following locations were searched

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[AspNet 5 Entity Framework 6 Error] InvalidOperati

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[AspNet 5 Entity Framework 6 Error] InvalidOperationException: The property "ModelName.Id" has a temporary value while attempting to change the entity's state to "Modified". Either set a permanent value explicitly, or ensure that the database is configured to generate values for this property.

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Asp.Net Core MVC Razor View Form not posting data

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

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Error unprotecting the session cookie

QUESTIONS
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Error unprotecting the session cookie

QUESTIONS
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ObjectDisposedException: Cannot access a disposed

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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

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How to use Microsoft Signalr C# Client in Asp.Net

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How to use Microsoft Signalr C# Client in Asp.Net Core 31 (Error: WithUrl() not found in Core 3 client)

.NET 7
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Chat GPT Code in C#

OTHER
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ASP.Net Core 2.2 Razor View Routing for Partial Vi

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ASP.Net Core 2.2 Razor View Routing for Partial View not working

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Asp.Net MVC Development Notes

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Asp.Net MVC Development Notes

.NET 7
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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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private protected Functions used for Event Handler

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private protected Functions used for Event Handler in C-Sharp (code execution hangs in an Event Handler)

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Vmware ESXI 6.2 How to Mount a USB Storage to vmwa

HARDWARE
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Vmware ESXI 6.2 How to Mount a USB Storage to vmware esxi host

HARDWARE
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What is the best Asp.Net Core Application Design,

RESEARCH
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What is the best Asp.Net Core Application Design, give diagrams if possible.

RESEARCH
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Docker on Windows Error "A fatal error was encount

DOCKER
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Docker on Windows Error "A fatal error was encountered. The library 'libhostpolicy.so' required to execute the application was not found"

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Tips and Trick Developing in C# and Dotnet 8

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RuntimeBinderException: The best overloaded method

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RuntimeBinderException: The best overloaded method match for 'Microsoft.AspNetCore.DataProtection.IDataProtector.Protect(byte[])' has some invalid arguments

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How to Create the Best Outline When Drawing Realis

ART
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How to Create the Best Outline When Drawing Realistic Photos

ART
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Event Viewer cannot open the event log or custom v

QUESTIONS
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Event Viewer cannot open the event log or custom view. Verify that Event Log service is running or query is too long.

QUESTIONS
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The 'Microsoft.AspNetCore.Mvc.ViewFeature.Infrastr

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

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Bootstrap Card Header not sticking to the top

BOOTSTRAP
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Bootstrap Card Header not sticking to the top

BOOTSTRAP
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How to Prepare a Reference Photo for Drawing

ART
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How to Prepare a Reference Photo for Drawing

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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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HTTP Dot Net Core 2.2 Error 500.30 - ANCM In-Proce

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HTTP Dot Net Core 2.2 Error 500.30 - ANCM In-Process Start Failure

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ASP.Net Core 2.2 MVC Error g.cshtml.cs: The type o

HTML5
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ASP.Net Core 2.2 MVC Error g.cshtml.cs: The type or namespace name ErrorViewModel could not be found (are you missing a using directive or an assembly reference). File Error.g.cshtml.cs

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SQL Server Tips and Tricks

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SQL Server Tips and Tricks

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[Solved IIS Error] The request filtering module is

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[Solved IIS Error] The request filtering module is configured to deny a request that contains a double escape sequence

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[Solved IIS Error] The request filtering module is

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[Solved IIS Error] The request filtering module is configured to deny a request that contains a double escape sequence

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Remote .NET Developer Opportunity!

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Remote .NET Developer Opportunity!

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Why is dotnet watch run not showing changes in the

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

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Software Development Good Practices

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Software Development Good Practices

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C#.NET Developer (Levels 1-3)

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C#.NET Developer (Levels 1-3)

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How to choose a Framework when making Web app

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How to choose a Framework when making Web app

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C#.NET Developer 3

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C#.NET Developer 3

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Error parsing the SelectList Items to a View

InvalidOperationException: There is no ViewData it

InvalidOperationException: There is no ViewData item of type 'IEnumerable<SelectListItem>' that has the key 'Department'

Required: Fix ePub and resubmit

Required: Fix ePub and resubmit

yaml.parser.ParserError: while parsing a block map

yaml.parser.ParserError: while parsing a block mapping

InvalidOperationException: <ClassName xmlns='http:

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

The content in the request produced errors while p

The content in the request produced errors while parsing. Check that the content is correctly formatted for the Content-Type provided.

How to get localized string from ASP.NET Core Cont

How to get localized string from ASP.NET Core Controller Work Around

An unhandled exception occurred while processing t

An unhandled exception occurred while processing the request "The view 'ViewName' was not found. The following locations were searched"

How to get a base url for Asp.Net Core Application

How to get a base url for Asp.Net Core Application in the Razor View Page

How to Write to PDF using an Open Source Library c

How to Write to PDF using an Open Source Library called iText 7 in Asp.Net Core [Writer Library (iText7 AGPL License)]

How to Format a String to a Two Decimal Places in

How to Format a String to a Two Decimal Places in ASP.NET Core 3.1 MVC View ()

Asp.Net Core Error: InvalidOperationException: The

Asp.Net Core Error: InvalidOperationException: The model item passed into the ViewDataDictionary is of type '<>f__AnonymousType7`2[System.Int32,System.String]', but this ViewDataDictionary instance requires a model item of type 'Modal'.

Razor MVC Error : An Expression Tree may not conta

Razor MVC Error : An Expression Tree may not contain a dynamic operation

[Solved] Entity Framework Core Asp.Net Core 3.1 Er

[Solved] Entity Framework Core Asp.Net Core 3.1 Error: SqlException: The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value. The statement has been terminated

Solved!! Dot Net Core 3.1 Error: Inspecting the st

Solved!! Dot Net Core 3.1 Error: Inspecting the state of an object in the debuggee of type System.Reflection.MethodBase is not supported in this context

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

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

InvalidOperationException: A view component named

Asp.Net Core 3.1 Razor View Error: CS1963: An expr

Asp.Net Core 3.1 Razor View Error: CS1963: An expression tree may not contain a dynamic operation

System.InvalidOperationException: The view 'Index'

System.InvalidOperationException: The view 'Index' was not found. The following locations were searched

[AspNet 5 Entity Framework 6 Error] InvalidOperati

[AspNet 5 Entity Framework 6 Error] InvalidOperationException: The property "ModelName.Id" has a temporary value while attempting to change the entity's state to "Modified". Either set a permanent value explicitly, or ensure that the database is configured to generate values for this property.

Asp.Net Core MVC Razor View Form not posting data

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

Error unprotecting the session cookie

Error unprotecting the session cookie

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

How to use Microsoft Signalr C# Client in Asp.Net

How to use Microsoft Signalr C# Client in Asp.Net Core 31 (Error: WithUrl() not found in Core 3 client)

Chat GPT Code in C#

Chat GPT Code in C#

ASP.Net Core 2.2 Razor View Routing for Partial Vi

ASP.Net Core 2.2 Razor View Routing for Partial View not working

Asp.Net MVC Development Notes

Asp.Net MVC Development Notes

AspNet MVC ViewData Error: InvalidOperationExcepti

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

private protected Functions used for Event Handler

private protected Functions used for Event Handler in C-Sharp (code execution hangs in an Event Handler)

Vmware ESXI 6.2 How to Mount a USB Storage to vmwa

Vmware ESXI 6.2 How to Mount a USB Storage to vmware esxi host

What is the best Asp.Net Core Application Design,

What is the best Asp.Net Core Application Design, give diagrams if possible.

Docker on Windows Error "A fatal error was encount

Docker on Windows Error "A fatal error was encountered. The library 'libhostpolicy.so' required to execute the application was not found"

Tips and Trick Developing in C# and Dotnet 8

Tips and Trick Developing in C# and Dotnet 8

RuntimeBinderException: The best overloaded method

RuntimeBinderException: The best overloaded method match for 'Microsoft.AspNetCore.DataProtection.IDataProtector.Protect(byte[])' has some invalid arguments

How to Create the Best Outline When Drawing Realis

How to Create the Best Outline When Drawing Realistic Photos

Event Viewer cannot open the event log or custom v

Event Viewer cannot open the event log or custom view. Verify that Event Log service is running or query is too long.

The 'Microsoft.AspNetCore.Mvc.ViewFeature.Infrastr

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

Bootstrap Card Header not sticking to the top

Bootstrap Card Header not sticking to the top

How to Prepare a Reference Photo for Drawing

How to Prepare a Reference Photo for Drawing

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

HTTP Dot Net Core 2.2 Error 500.30 - ANCM In-Proce

HTTP Dot Net Core 2.2 Error 500.30 - ANCM In-Process Start Failure