Q:

Disable client side form validation in ASP.NET Core

How can I disable client-side form validation in my ASP.NET Core 1.1 app? But I need the server-side one.

A:

You do this in your ConfigureServices class in your Startup file:
services.AddMvc().AddViewOptions(options => 
    options.HtmlHelperOptions.ClientValidationEnabled = false);

This will work for the attributes generated by tag helpers.

A:

you just remove the javascript for jquery.unobtrusive.validation.js
In the VS project templates that is in _ValidationScriptsPartial.cshtml

