- New control: CalendarPicker

- New control: MonthPicker
- New control TreeView
- adding examples for all 3
- small change on Progress Bar Control
- due latest changes on the base it is now easier to create controls which will be rendered (or not)in several forms depending on user context

TelegramBotBase/Tools/Arrays.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBase.Tools
+{
+    public static class Arrays
+    {
+        public static T[] Shift<T>(T[] array, int positions)
+        {
+            T[] copy = new T[array.Length];
+            Array.Copy(array, 0, copy, array.Length - positions, positions);
+            Array.Copy(array, positions, copy, 0, array.Length - positions);
+            return copy;
+        }
+    }
+}

TelegramBotBase/Tools/Time.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TelegramBotBase.Tools
+{
+    public static class Time
+    {
+        public static DateTime StartOfWeek(this DateTime dt, DayOfWeek startOfWeek)
+        {
+            int diff = dt.DayOfWeek - startOfWeek;
+            if (diff < 0)
+            {
+                diff += 7;
+            }
+            return dt.AddDays(-1 * diff).Date;
+        }
+
+        public static DateTime EndOfWeek(this DateTime dt, DayOfWeek startOfWeek)
+        {
+            return StartOfWeek(dt, startOfWeek).AddDays(6);
+        }
+
+        public static DateTime FirstDayOfMonth(this DateTime date)
+        {
+            return new DateTime(date.Year, date.Month, 1);
+        }
+
+        public static DateTime LastDayOfMonth(this DateTime date)
+        {
+            return FirstDayOfMonth(date).AddMonths(1).AddDays(-1);
+        }
+    }
+}