In ASP.NET MVC, you can add HTML attributes to the Html.EditorFor helper using an anonymous object as the third parameter. The anonymous object should contain the HTML attribute name-value pairs you want to add to the generated HTML input element.
The Html.EditorFor helper is typically used to generate input elements for properties of a model. Here's how you can add HTML attributes to an EditorFor input element:
Assuming you have a model like this:
public class Person { public int Id { get; set; } public string Name { get; set; } public int Age { get; set; } } You can add HTML attributes to the EditorFor input elements like this:
@model Person @using (Html.BeginForm()) { <div> @Html.LabelFor(m => m.Name) @Html.EditorFor(m => m.Name, new { @class = "form-control", placeholder = "Enter name" }) </div> <div> @Html.LabelFor(m => m.Age) @Html.EditorFor(m => m.Age, new { @class = "form-control", @readonly = "readonly" }) </div> <input type="submit" value="Submit" /> } In this example, we use the Html.EditorFor helper to generate input elements for the Name and Age properties of the Person model. We pass an anonymous object as the third parameter to add HTML attributes to each input element.
For the Name input element, we add the class and placeholder attributes, which will render the HTML as follows:
<div> <label for="Name">Name</label> <input class="form-control" data-val="true" data-val-required="The Name field is required." id="Name" name="Name" placeholder="Enter name" type="text" value="" /> </div>
For the Age input element, we add the class and readonly attributes:
<div> <label for="Age">Age</label> <input class="form-control" data-val="true" data-val-number="The field Age must be a number." data-val-required="The Age field is required." id="Age" name="Age" readonly="readonly" type="text" value="" /> </div>
As you can see, the HTML attributes specified in the anonymous objects are added to the respective input elements in the generated HTML. This allows you to customize the appearance and behavior of the input elements using HTML attributes as needed.
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