自定义非验证属性 ASP.NET 核心

Question

I know how to create custom validation attribute using IClientModelValidator where I can add html attributes using ClientModelValidationContext , but how to create an attribute, like nonwritable that sets html class with disable to input; it's not good to do it in validation context.

Sorry for my English

Answer 1

<input type="text" id="ex" name="example" disabled>

When a disabled attribute is present, it specifies that the element should be disabled. A disabled input element is unusable as well as un-clickable.

The disabled attribute can be set to keep a user from using the element until some other condition has been met (like selecting a checkbox, etc.). Then, a JavaScript could remove the disabled value, and make the element usable.

Answer 2

You can do it with easier with some tag helper or HTML helper that will render this depending on the condition you pass in.

Example with HTML helper:
Conditionally render disabled button in asp.net core view
Example with tag helper:
Input Tag Helper Not Working with Razor Code