Data Annotation Validation in ASP.NET MVC

http://www.asp.net/mvc/tutorials/older-versions/models-(data)/validation-with-the-data-annotation-validators-cs

 public class Product
    {
        public int Id { get; set; }

        [Required]
        [StringLength(10)]
        public string Name { get; set; }

        [Required]
        public string Description { get; set; }

        [DisplayName("Price")]
        [Required]
        [RegularExpression(@"^\$?\d+(\.(\d{2}))?$")]
        public decimal UnitPrice { get; set; }
    }

Write Less Code

http://mikegrouchy.com/blog/2012/06/write-less-code.html

When you think about it though the fact that most of your time will be maintaining the terrible code you wrote, writing less code and not creating more work for yourself will start to look like an exceptionally good idea.

Really software development job is to think, your job is to think about the problem at hand, devise an elegant solution and then turn that solution into software.

Free ASP.NET MVC hosting, AppHarbor

http://support.appharbor.com/kb/getting-started/deploying-your-first-application-using-git

How to set maxlength for a Textbox in MVC3?

In model add following attribute:
        [StringLength(30, ErrorMessage = "Name cannot be longer than 30 characters.")]
        public string Name { get; set; }

Try a couple of others way, doesn’t work:

@Html.EditorFor(model => model.Name, new { @maxlength = "2" })
$(“#name”).attr(“maxlength”,20);

How to solve "Unable to copy file because it is being used by another process" in ASP.NET

If your ASP.NET solution suddenly cannot compile successfully like before, get following error
“Unable to copy file because it is being used by another process”
Go to Task Manager, and kill all of processes that name "WebDev.WebServer40.exe"