Here is simple example that sets the id of the checkbox element: Dropdown Lists in Razor Pages with Hopefully you can use this ⦠The first technique is a one-way binding that will attach the value of a variable to a DOM element of your website. In this article we will try to see some commonly used conditional attribute tricks, formatting of data like apply class conditionally, show hide controls, enable and disable the controls. Razor Conditional Attributes in ASP.NET MVC 4. HTML helpers support the ability to pass in an anonymous object for setting these attributes. The name (s) of the environment (s) for which the content should be rendered. Conditional Attributes in Razor View Engine and ASP.NET MVC 4 In fact, even apply a value such as false will still activate them. Razor VB Loops (Line: 8) To make our c# class as Razor Page model it needs to inherit the 'Microsoft.AspNetCore.Mvc.RazorPages.PageModel'. One is from the model, ... pass javascript variable to html. As of MVC 5.1, the dev team realized that this was a fairly common use case: needing to add additional HTML attributes. With checkboxes in Razor, you should provide a boolean value/expression to the checked attribute. Example In the following example, _dataProvider.GetAdvertDataAttributes() returns an IDictionary and defines any additional data attributes required on the component: Description. Conditional Attributes in Razor respond to boolean values, which can be very useful for say checkboxes. A checkbox has a checked attribute that you set to checked when the checkbox is supposed to be checked; Otherwise the attribute is not included. This is perfect for Conditional Attributes. Add the following code block and HTML to your Razor View. For more information see Named C# Variables and Nested Blocks Generate Broken Code. Using Blazor @ Variables to Specify Html Attributes The code that is executed on the server can perform tasks that cannot be done in the browser, for example accessing a server database. , where CheckState is either "checked" or "") and got an exception indicating @CheckState is not a valid attribute, indicating Blazor did not render it to its value. Razor is one of the view engines supported in ASP.NET MVC. The helper will take each item out of the anonymous object and add them to the html element as attributes. "auth" : "anon" Therefore, the solution is: What is the equivalent syntax with the Razor view engine? If it resolves to true, the attribute is rendered, otherwise it isn't: . This code can be used anywhere in Razor, not just for an html attribute. ASP.NET Core: Application Settings in Razor - Steve BrownleeASP.NET Core Razor components | Microsoft Docs The CultureInfo object that is ⦠Dynamic HTML Tags in MVC Razor | chowson.github.iorazor variable in html attribute Typically you would bind the value and the let blazor decide.