1 files changed, 99 insertions, 0 deletions
diff --git a/Xamarin.Forms.Core/DatePicker.cs b/Xamarin.Forms.Core/DatePicker.cs
new file mode 100644
index 00000000..15f1c198
--- /dev/null
+++ b/Xamarin.Forms.Core/DatePicker.cs
@@ -0,0 +1,99 @@
+using System;
+using Xamarin.Forms.Platform;
+
+namespace Xamarin.Forms
+{
+	[RenderWith(typeof(_DatePickerRenderer))]
+	public class DatePicker : View
+	{
+		public static readonly BindableProperty FormatProperty = BindableProperty.Create("Format", typeof(string), typeof(DatePicker), "d");
+
+		public static readonly BindableProperty DateProperty = BindableProperty.Create("Date", typeof(DateTime), typeof(DatePicker), DateTime.Today, BindingMode.TwoWay, coerceValue: CoerceDate,
+			propertyChanged: DatePropertyChanged);
+
+		public static readonly BindableProperty MinimumDateProperty = BindableProperty.Create("MinimumDate", typeof(DateTime), typeof(DatePicker), new DateTime(1900, 1, 1),
+			validateValue: ValidateMinimumDate, coerceValue: CoerceMinimumDate);
+
+		public static readonly BindableProperty MaximumDateProperty = BindableProperty.Create("MaximumDate", typeof(DateTime), typeof(DatePicker), new DateTime(2100, 12, 31),
+			validateValue: ValidateMaximumDate, coerceValue: CoerceMaximumDate);
+
+		public DateTime Date
+		{
+			get { return (DateTime)GetValue(DateProperty); }
+			set { SetValue(DateProperty, value); }
+		}
+
+		public string Format
+		{
+			get { return (string)GetValue(FormatProperty); }
+			set { SetValue(FormatProperty, value); }
+		}
+
+		public DateTime MaximumDate
+		{
+			get { return (DateTime)GetValue(MaximumDateProperty); }
+			set { SetValue(MaximumDateProperty, value); }
+		}
+
+		public DateTime MinimumDate
+		{
+			get { return (DateTime)GetValue(MinimumDateProperty); }
+			set { SetValue(MinimumDateProperty, value); }
+		}
+
+		public event EventHandler<DateChangedEventArgs> DateSelected;
+
+		static object CoerceDate(BindableObject bindable, object value)
+		{
+			var picker = (DatePicker)bindable;
+			DateTime dateValue = ((DateTime)value).Date;
+
+			if (dateValue > picker.MaximumDate)
+				dateValue = picker.MaximumDate;
+
+			if (dateValue < picker.MinimumDate)
+				dateValue = picker.MinimumDate;
+
+			return dateValue;
+		}
+
+		static object CoerceMaximumDate(BindableObject bindable, object value)
+		{
+			DateTime dateValue = ((DateTime)value).Date;
+			var picker = (DatePicker)bindable;
+			if (picker.Date > dateValue)
+				picker.Date = dateValue;
+
+			return dateValue;
+		}
+
+		static object CoerceMinimumDate(BindableObject bindable, object value)
+		{
+			DateTime dateValue = ((DateTime)value).Date;
+			var picker = (DatePicker)bindable;
+			if (picker.Date < dateValue)
+				picker.Date = dateValue;
+
+			return dateValue;
+		}
+
+		static void DatePropertyChanged(BindableObject bindable, object oldValue, object newValue)
+		{
+			var datePicker = (DatePicker)bindable;
+			EventHandler<DateChangedEventArgs> selected = datePicker.DateSelected;
+
+			if (selected != null)
+				selected(datePicker, new DateChangedEventArgs((DateTime)oldValue, (DateTime)newValue));
+		}
+
+		static bool ValidateMaximumDate(BindableObject bindable, object value)
+		{
+			return (DateTime)value >= ((DatePicker)bindable).MinimumDate;
+		}
+
+		static bool ValidateMinimumDate(BindableObject bindable, object value)
+		{
+			return (DateTime)value <= ((DatePicker)bindable).MaximumDate;
+		}
+	}
+}
+\ No newline at end of file