Hi,

I have create this new CustomDatePicker class:

public class CustomDatePicker : FieldType
{

    [Umbraco.Forms.Core.Attributes.Setting("Placeholder", Alias = "placeholder", Description = "Enter a HTML5 placeholder value", View = "textstring")]
    public string Placeholder { get; set; }
    public CustomDatePicker()
    {
        this.Id = new Guid("4c1ff777-0412-43ee-bfe0-53e71b931d74"); 
        this.Name = "CustomDatePicker";
        this.Description = "Render a custom datepicker field.";
        this.Icon = "icon-calendar";
        this.DataType = FieldDataType.DateTime;
        this.Category = "Simple";
        this.SortOrder = 30;
        this.SupportsRegex = true;
        // Optional          
        this.HideField = false;
        this.HideLabel = false;
        this.FieldTypeViewName = "FieldType.CustomDatePicker.cshtml";

    }

    // You can do custom validation in here which will occur when the form is submitted.
    // Any strings returned will cause the submit to be invalid!
    // Where as returning an empty ienumerable of strings will say that it's okay.
    public virtual IEnumerable<object> ProcessValue(IEnumerable<object> postedValues)
    {
        return CustomDatePicker.ProcessFieldValues(postedValues);
    }

    public override IEnumerable<object> ConvertToRecord(Field field, IEnumerable<object> postedValues, HttpContextBase context)
    {
        return CustomDatePicker.ProcessFieldValues(postedValues);
    }

    private static IEnumerable<object> ProcessFieldValues(IEnumerable<object> postedValues)
    {
        List<object> objectList = new List<object>();
        postedValues = (IEnumerable<object>)postedValues.ToArray<object>();
        if (!postedValues.Any<object>())
            return (IEnumerable<object>)objectList;
        DateTime result;
        if (DateTime.TryParse(postedValues.First<object>().ToString(), out result))
            objectList.Add((object)result);
        return (IEnumerable<object>)objectList;
    }
}

But I dont got the pikaday function to work. Shall I add some settings for that here or is there anywhere else?

Thanks!