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How to add class to element in Javascript

1/14/2025 3:02:22 AM 72

In JavaScript, you can add a class to an HTML element using the classList property and the add() method.

How to use decimal precision and scale in EF Code First

1/14/2025 2:43:56 AM 730

In C# Entity Framework, when you want to use the Decimal data type for your entity properties, you can follow these steps.

How to Encode and Decode URL in C#

1/14/2025 2:29:25 AM 336

In C#, URL encoding and decoding can be performed using the System.Net.WebUtility class or System.Uri class.

How to Convert DateTime to Unix Timestamp in C#

1/13/2025 9:32:26 AM 922

In .NET, you can easily convert DateTime object back to a Unix timestamp.

How to implement an asynchronous socket in C#

1/13/2025 2:33:04 AM 143

A socket is the endpoint for two-way communication between two processes operating over a network.

How to fix InvalidOperationException: No service for type 'Microsoft.AspNetCore.Identity.UserManager'

1/11/2025 3:25:13 AM 1.96K

To resolve the error 'InvalidOperationException: No service for type 'Microsoft.AspNetCore.Identity.UserManager[Microsoft.AspNetCore.Identity.IdentityUser]' has been registered,' follow these steps when customizing ASP.NET Core Identity.

How to fix 'IMvcBuilder' does not contain a definition for 'AddNewtonsoftJson'

1/11/2025 2:59:37 AM 1.67K

The error message you are seeing, "IMvcBuilder does not contain a definition for AddNewtonsoftJson", typically occurs when you're trying to add Newtonsoft.Json support to an ASP.NET Core MVC application, but the necessary package or using directive is missing.

System.InvalidOperationException: Unable to resolve service for type while attempting to activate

1/11/2025 2:18:51 AM 307

The error System.InvalidOperationException: Unable to resolve service for type while attempting to activate typically occurs in .NET applications when the dependency injection (DI) container is unable to resolve or instantiate a service that is being requested.

Unable to resolve service for type 'Microsoft.AspNetCore.Identity.RoleManager'

1/11/2025 1:59:06 AM 930

The error "Unable to resolve service for type 'Microsoft.AspNetCore.Identity.RoleManager'" in ASP.NET Core typically occurs when the dependency injection can't find or inject a required service.

How to Download Crystal Reports for Visual Studio 2019

1/11/2025 1:39:26 AM 1.26K

To download and install Crystal Reports for Visual Studio 2019, follow these steps.

How to Convert string to JSON in C#

1/10/2025 9:09:27 AM 318

You can convert a string to a JSON object in C# using the `JsonSerializer.Deserialize` method from the `System.Text.Json` namespace.

How to take a screenshot with Selenium WebDriver

1/10/2025 8:42:50 AM 81

Taking screenshots in Selenium WebDriver is a key feature for automated testing, allowing testers to capture visual evidence of issues, bugs, or test failures.

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