If you not configured credentials this error will occur. Your must need to include Credentials for secure connection then only authenticated.
If you have a string such as "456", you cannot do math with it, or use it anywhere you could use an integer unless you first need to convert it to the int type.
In this article you will learn about how to display a DateTime value in dd/MMM/yyyy format by means of HTML Hepler methods in Asp.NET MVC.
We need to add [ValidateAntiForgeryToken] attribute before our action. And also should add @Html.AntiForgeryToken() in our form.
Create a css class with style property and apply to dropdrownlist.
In this example I am going to explain How to create DropDownList using MVC .net.Here, I am binding the MVC dropdownlist from model object (myDatabaseEntity) using entity framework.