Solved Solutions to computer programming Errors

[Solved]: Asp.Net Core Error 'byte[]' does not contain a definition for 'CopyToAsync' and no accessible extension method 'CopyToAsync' accepting a first argument of type 'byte[]' could be found (are you missing a using directive or an assembly reference?)

.NET 7
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How to update SelectListItem based on Filtered Cat

.NET 7
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How to update SelectListItem based on Filtered Category from another DropDown menu in MVC AspNet 6 Razor Syntax

.NET 7
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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 Use DisplayFor to Display Text from EF Core

.NET 7
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How to Use DisplayFor to Display Text from EF Core Data Annotation in MVC and Components

.NET 7
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How to provide default values to an ASP.Net Core D

.NET 7
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How to provide default values to an ASP.Net Core DropDownList MVC

.NET 7
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How to Bind a CheckBox data to a Model Integer Pro

DATABASES
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How to Bind a CheckBox data to a Model Integer Property in DotNet Core 2.2

DATABASES
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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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Embedded HTML5 Form in JavaScript Post Method Appe

JAVASCRIPT
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Embedded HTML5 Form in JavaScript Post Method Appends Url to Existing URL (Form Submit Appends URL)

JAVASCRIPT
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Uncaught ReferenceError: submit is not defined

HTML5
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Uncaught ReferenceError: submit is not defined

HTML5
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Web API Return Pure Json Data

DATABASES
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Web API Return Pure Json Data

DATABASES
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[Solved] Asp.Net 5 Error: error RZ2008: Attribute

.NET 7
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[Solved] Asp.Net 5 Error: error RZ2008: Attribute 'asp-for' on tag helper element 'label' requires a value

.NET 7
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Asp.Net Core Error: InvalidOperationException: The

.NET 7
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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'.

.NET 7
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InvalidOperationException: There is no ViewData it

.NET 7
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InvalidOperationException: There is no ViewData item of type 'IEnumerable<SelectListItem>' that has the key 'Department'

.NET 7
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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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Mvc authorization attribute not working AspNet 6

.NET 7
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Mvc authorization attribute not working AspNet 6

.NET 7
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Asp.Net Core 3.1 Razor Error: CS1003: Syntax erro

.NET 7
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Asp.Net Core 3.1 Razor Error: CS1003: Syntax error, ',' expected

.NET 7
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How to check if the number is empty in C-Sharp Asp

HTML5
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How to check if the number is empty in C-Sharp Asp.Net Core

HTML5
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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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Asp.Net Core 3.1 MVC 5 Error ViewBag does not Exis

.NET 7
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Asp.Net Core 3.1 MVC 5 Error ViewBag does not Exist in the Current Context

.NET 7
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Front-End Development Tips and Tricks

FRONT-END
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Front-End Development Tips and Tricks

FRONT-END
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An unhandled exception occurred while processing t

.NET 7
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An unhandled exception occurred while processing the request "The view 'ViewName' was not found. The following locations were searched"

.NET 7
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Pass Jquery Date Picker to CodeBehind

JAVASCRIPT
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Pass Jquery Date Picker to CodeBehind

JAVASCRIPT
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RuntimeBinderException: The best overloaded method

.NET 7
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RuntimeBinderException: The best overloaded method match for 'string.Replace(char, char)' has some invalid arguments

.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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Insert Data in Array In Style

DATABASES
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Insert Data in Array In Style

DATABASES
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Asp.Net Core GRPC Client Error: the type name "Gre

.NET 7
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Asp.Net Core GRPC Client Error: the type name "GreeterClient" does not exist in the type Greeter

.NET 7
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How to Optimise a Web Application for Mobile Phone

COMPUTER PROGRAMMING
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How to Optimise a Web Application for Mobile Phones

COMPUTER PROGRAMMING
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Software Development Architecture and Good Practic

SYSTEM DESIGN
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Software Development Architecture and Good Practices

SYSTEM DESIGN
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Clean JSON Data in Excel

DATABASES
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Clean JSON Data in Excel

DATABASES
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setInterval in JavaScript not working

JAVASCRIPT
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setInterval in JavaScript not working

JAVASCRIPT
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ASP.Net Core 2.2 Not Required Field in Data Model.

.NET 7
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ASP.Net Core 2.2 Not Required Field in Data Model. DataAnnotations NotMapped or Optional in DotNet Core 2.2

.NET 7
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InvalidOperationException: The 'Microsoft.AspNetCo

QUESTIONS
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InvalidOperationException: The 'Microsoft.AspNetCore.Mvc.ViewFeatures.Infrastructure.DefaultTempDataSerializer' cannot serialize an object of type 'System.Collections.Generic.List`1

QUESTIONS
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An unhandled exception occurred while processing t

.NET 7
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An unhandled exception occurred while processing the request: FormatException: The header contains invalid values at index 0

.NET 7
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Razor MVC Error : An Expression Tree may not conta

.NET 7
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Razor MVC Error : An Expression Tree may not contain a dynamic operation

.NET 7
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Failed - Invalid CPU reservation for the latency-s

MVC
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Failed - Invalid CPU reservation for the latency-sensitive VM. Need full CPU reservation: 9936 MHz (measured) or nominal processor frequency

MVC
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Application startup exception: System.InvalidOpera

MVC
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Application startup exception: System.InvalidOperationException: Cannot resolve scoped service from root provider

MVC
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InvalidOperationException: Cannot override the 'hr

MVC
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InvalidOperationException: Cannot override the 'href' attribute for <a>. An <a> with a specified 'href' must not have attributes starting with 'asp-route-' or an 'asp-action', 'asp-controller', 'asp-area', 'asp-route', 'asp-protocol', 'asp-host', 'asp-fragment', 'asp-page' or 'asp-page-handler' attribute.

MVC
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[Solved] InvalidOperationException: The entity typ

MVC
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[Solved] InvalidOperationException: The entity type 'TableNameOrModelName' requires a primary key to be defined. If you intended to use a keyless entity type call 'HasNoKey()'.

MVC
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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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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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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

HTML5
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Issues with Memory Cache TryGetValue always return

.NET 7
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Issues with Memory Cache TryGetValue always returns false

.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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The type or namespace name 'IHttpContextAccessor'

.NET 7
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The type or namespace name 'IHttpContextAccessor' could not be found (are you missing a using directive or an assembly reference)

.NET 7
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[AspNet 6] Using Generic Types in an Interface MVC

QUESTIONS
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[AspNet 6] Using Generic Types in an Interface MVC C-Sharp

QUESTIONS
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equivalent of bit data type in C#

.NET 7
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equivalent of bit data type in C#

.NET 7
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Form not remembering data in MVC

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

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

InvalidOperationException: Incorrect Content-Type

InvalidOperationException: Incorrect Content-Type

Asp.Net Core MVC Razor View Form not posting data

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

MVC Form Error "Incorrect Content-Type"

MVC Form Error "Incorrect Content-Type"

[Solved]: Asp.Net Core Error 'byte[]' does not co

[Solved]: Asp.Net Core Error 'byte[]' does not contain a definition for 'CopyToAsync' and no accessible extension method 'CopyToAsync' accepting a first argument of type 'byte[]' could be found (are you missing a using directive or an assembly reference?)

How to update SelectListItem based on Filtered Cat

How to update SelectListItem based on Filtered Category from another DropDown menu in MVC AspNet 6 Razor Syntax

Asp.Net MVC Development Notes

Asp.Net MVC Development Notes

How to Use DisplayFor to Display Text from EF Core

How to Use DisplayFor to Display Text from EF Core Data Annotation in MVC and Components

How to provide default values to an ASP.Net Core D

How to provide default values to an ASP.Net Core DropDownList MVC

How to Bind a CheckBox data to a Model Integer Pro

How to Bind a CheckBox data to a Model Integer Property in DotNet Core 2.2

Web API 415: Unsupported Media Type

Web API 415: Unsupported Media Type

Embedded HTML5 Form in JavaScript Post Method Appe

Embedded HTML5 Form in JavaScript Post Method Appends Url to Existing URL (Form Submit Appends URL)

Uncaught ReferenceError: submit is not defined

Uncaught ReferenceError: submit is not defined

Web API Return Pure Json Data

Web API Return Pure Json Data

[Solved] Asp.Net 5 Error: error RZ2008: Attribute

[Solved] Asp.Net 5 Error: error RZ2008: Attribute 'asp-for' on tag helper element 'label' requires a value

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'.

InvalidOperationException: There is no ViewData it

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

What is the best Asp.Net Core Application Design,

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

Mvc authorization attribute not working AspNet 6

Mvc authorization attribute not working AspNet 6

Asp.Net Core 3.1 Razor Error: CS1003: Syntax erro

Asp.Net Core 3.1 Razor Error: CS1003: Syntax error, ',' expected

How to check if the number is empty in C-Sharp Asp

How to check if the number is empty in C-Sharp Asp.Net Core

ASP.NET 8 Best Practices: Coding, Performance Tips

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

Asp.Net Core 3.1 MVC 5 Error ViewBag does not Exis

Asp.Net Core 3.1 MVC 5 Error ViewBag does not Exist in the Current Context

Front-End Development Tips and Tricks

Front-End Development Tips and Tricks

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"

Pass Jquery Date Picker to CodeBehind

Pass Jquery Date Picker to CodeBehind

RuntimeBinderException: The best overloaded method

RuntimeBinderException: The best overloaded method match for 'string.Replace(char, char)' has some invalid arguments

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

Insert Data in Array In Style

Insert Data in Array In Style

Asp.Net Core GRPC Client Error: the type name "Gre

Asp.Net Core GRPC Client Error: the type name "GreeterClient" does not exist in the type Greeter

How to Optimise a Web Application for Mobile Phone

How to Optimise a Web Application for Mobile Phones

Software Development Architecture and Good Practic

Software Development Architecture and Good Practices

Clean JSON Data in Excel

Clean JSON Data in Excel

setInterval in JavaScript not working

setInterval in JavaScript not working

ASP.Net Core 2.2 Not Required Field in Data Model.

ASP.Net Core 2.2 Not Required Field in Data Model. DataAnnotations NotMapped or Optional in DotNet Core 2.2

InvalidOperationException: The 'Microsoft.AspNetCo

InvalidOperationException: The 'Microsoft.AspNetCore.Mvc.ViewFeatures.Infrastructure.DefaultTempDataSerializer' cannot serialize an object of type 'System.Collections.Generic.List`1

An unhandled exception occurred while processing t

An unhandled exception occurred while processing the request: FormatException: The header contains invalid values at index 0

Razor MVC Error : An Expression Tree may not conta

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

Failed - Invalid CPU reservation for the latency-s

Failed - Invalid CPU reservation for the latency-sensitive VM. Need full CPU reservation: 9936 MHz (measured) or nominal processor frequency

Application startup exception: System.InvalidOpera