$ ".className"
  .fadeOut "slow"

$(".className").fadeOut "slow"

model: {
                    fields: {
                        "Id": { type: "number" }, //تعیین نوع فیلد برای جستجوی پویا مهم است
                        "Name": { type: "string" },
                        "IsAvailable": { type: "boolean" },
                        "Price": { type: "number" }
                    }
                }
      }

public class Field
    {
        public string Type { get; set; }
    }

public class Fields : System.Collections.ObjectModel.Collection<Field>
    {
        public System.Collections.IEnumerable ToList()
        {
            return System.Linq.Enumerable.ToList( System.Linq.Enumerable.Select( this ,
                                                                                 field => new { field.Type } ) );
        }
    }

return new InitializeInfo
                   {
                           ...
                           Model = GetModel()
                   };

private Model GetModel ()
        {
            return new Model{ Fields = GetFields().ToList() };
        }

private Fields GetFields()
        {
            var fields = new Fields();
            foreach ( var column in GetColumns() )
            {
                fields.Add( new Field { Type = column.DataType } );
            }
            return fields;
        }

"model": {

    "fields": [
        {
            "type": "string"
        },
        {
            "type": "string"
        },
        {
            "type": "datetime"
        }
    ]
}