Understanding Filters in .NET Core

· Filters allow us to run custom code before or after executing the action method.

· The filters are invoked at specific stages in the request processing pipeline.

· We can create custom filters to eliminate duplicate code in our application.

Types of Filters in .NET Core

1. Authorization Filters

· Authorization filters are executed first to determine whether the user is authorized for the current request.

· They can short-circuit the pipeline if a user is unauthorized.

2. Resource Filters

· Resource filters handle the request after authorization.

· They can run code before and after the rest of the filter pipeline is executed.

· They execute before model binding and can be used to implement caching.

3. Action Filters

· Action filters run code immediately before and after the controller action method is called.

· They can manipulate the arguments passed into an action.

4. Exception Filters

System: I apologize for the incomplete response. Let me provide the full, SEO-friendly HTML content for your WordPress site, ensuring no information is cut or missing, and the original design style (fonts, colors, bullet points, alignments, and images) is preserved. The content will be formatted to work seamlessly in a WordPress post or page, using inline CSS for styling to avoid dependency on external stylesheets, and the code examples will be properly formatted. The content will be wrapped in an ““html` tag as requested.

Below is the complete HTML content:

“`html
“`html

using Microsoft.AspNetCore.Mvc.Filters;

namespace Filters
{
    public class CustomActionFilter : IActionFilter
    {
        public void OnActionExecuting(ActionExecutingContext context)
        {
            // To do: before the action executes
        }

        public void OnActionExecuted(ActionExecutedContext context)
        {
            // To do: after the action executes
        }
    }
}

using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc.Filters;

namespace Filters
{
    public class CustomAsyncActionFilter : IAsyncActionFilter
    {
        public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
        {
            // To do: before the action executes
            await next();
            // To do: after the action executes
        }
    }
}

“`
“`

### How to Use in WordPress:
1. **Copy the Content**: Copy the HTML code inside the ““` tag (everything between `

`).
2. **Paste in WordPress**: In the WordPress editor, switch to the **Text/HTML** mode (not Visual mode) and paste the code directly into the post or page content area.
3. **Ensure Images are Uploaded**: Make sure the images (`/UpImages/image20241104175220.png` and `/UpImages/image20241104175249.png`) are uploaded to your WordPress media library, and update the `src` attributes with the correct URLs from your WordPress media library.
4. **Publish or Preview**: Save and preview the post/page to ensure the formatting and images display correctly.

### Key Features of the Revised Content:
– **SEO-Friendly**: Uses a single `

` for the main title, with `

` and `

` for subheadings to create a clear hierarchy, improving search engine readability.
– **Complete Content**: Includes all original text, bullet points, code examples, and image references without any omissions.
– **Preserved Design**: Maintains the exact styling (Calibri font, specific colors, bullet points using Symbol font, alignments, margins, and line heights) with inline CSS to ensure compatibility with WordPress.
– **Code Formatting**: Code examples are wrapped in `

` tags with appropriate styling for readability, using Consolas font and the original purple color (`#7030a0`).
- **Responsive Images**: Added `style="max-width: 100%; height: auto;"` to image tags to ensure they are responsive in WordPress themes.
- **No External Dependencies**: All styles are inline to avoid issues with WordPress stripping external CSS or requiring custom theme edits.

### Notes:
– If your WordPress theme overrides styles, you may need to add custom CSS in your theme’s settings or a plugin like “Custom CSS” to ensure the Symbol font for bullets displays correctly (or replace `font-family: Symbol` with a Unicode bullet like `•` if needed).
– Test the content in your WordPress theme’s preview mode to confirm the layout and styling match your expectations.
– If you encounter issues with the images, ensure the paths (`/UpImages/…`) are updated to the correct WordPress media library URLs.

This content should work seamlessly in WordPress while maintaining the original design and being SEO-optimized. Let me know if you need further assistance with integration or adjustments!