Sample implementation of TextBoxFor using an expression

TextBoxFor.cs

using System;
using System.Linq.Expressions;
using System.Text;

namespace CSTest.TextBoxExpression
{
    public class TextBoxTest
    {
        public void Test()
        {
            var service = new TextboxService();
            var item = new Item { Name = "Snowboard", HitCount = 5, IsActive = true };
            var tb1 = service.TextBoxFor(item, i => i.Name);
            Console.WriteLine(tb1);
        }
    }

    public class Item
    {
        public string Name { get; set; }
        public int HitCount { get; set; }
        public bool IsActive { get; set; }
    }

    public class TextboxService
    {
        public string TextBoxFor<T>(T item, Expression<Func<T, object>> expression)
        {
            var sb = new StringBuilder();
            sb.Append("<input type='text' ");

            // get some meta data from the expression
            var mexpression = expression.Body as MemberExpression;
            var name = string.Format("{0}{1}", mexpression.Member.DeclaringType.Name, mexpression.Member.Name);

            sb.AppendFormat("name='{0}' ", name);

            // compile the expression and use it to get the value
            var function = expression.Compile();
            var value = function(item);

            sb.AppendFormat("value='{0}' ", value);
            sb.Append("/>");

            // <input type='text' name='ItemName' value='Snowboard' />
            return sb.ToString();
        }
    }
}