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Show Notes:

• Craig Shoemaker.
• Rachel Appel.
• Dynamic Data.
• CRUD.
• Rules and Validation.

Source Code:

Global.asax:

model.RegisterContext(typeof(db35sp1Entities), new ContextConfiguration() { ScaffoldAllTables = true });

Metadata class:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web;

namespace Dynamic_Data
{
    [DisplayColumn("Name")]
    [MetadataType(typeof(tbItemMetaData))]
    public partial class tbItem
    {
        private class tbItemMetaData
        {
            [DisplayName("Item Display Name")]
            [StringLength(30)]
            [Required(ErrorMessage="Item name is required.")]
            public object Name { get; set; }

            [DisplayFormat(DataFormatString="{0:c}")]
            [Range(0, 500, ErrorMessage="Standard Cost should be between {1} and {2}.")]
            public object Price { get; set; }
        }

        // Note the naming convention of On X Changing and the nullable value.
        partial void OnPriceChanging(decimal? value)
        {
            if (value < 0)
            {
                throw (new ValidationException("Price must be positive, afterall we aren't paying you to take it."));
            }
        }
    }

    [MetadataType(typeof(tbOrderMetaData))]
    public partial class tbOrder
    {
        private class tbOrderMetaData
        {
            [ScaffoldColumn(true)]
            [DisplayFormat(DataFormatString = "{0:yyyy-MM-dd}")]
            public object DateUpdated { get; set; }
        }
    }  
}