From c4b96269e8b1a129612d813c25cf67e98b9dbc65 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Mon, 25 Jun 2007 18:20:18 +0000
Subject: Fixed #635.

---
 HISTORY                                                       |  1 +
 .../Web/Javascripts/source/prado/datepicker/datepicker.js     | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/HISTORY b/HISTORY
index 277cbdc6..0376a0bb 100644
--- a/HISTORY
+++ b/HISTORY
@@ -8,6 +8,7 @@ BUG: Ticket#652 - OFFSET must be specified together with LIMIT for TScaffoldView
 BUG: Ticket#653 - TUrlMapping: ServiceId irgnored in URL-Map (Qiang)
 BUG: Ticket#488 - TActiveCustomValidator Is Bypassing My Callback (Wei)
 BUG: Ticket#620 - PRADO should not take over all of Prototype's Callbacks (Wei)
+BUG: Ticket#635 - TDatePicker not correctly updating month (Christophe)
 BUG: TWizard Sidebar using TDataListItemRenderer has error (Qiang)
 BUG: TOutputCache crashes when a default button is set (Qiang)
 BUG: Fixed several typos in TDbCache (Qiang)
diff --git a/framework/Web/Javascripts/source/prado/datepicker/datepicker.js b/framework/Web/Javascripts/source/prado/datepicker/datepicker.js
index 262e0c1c..6dddeaad 100644
--- a/framework/Web/Javascripts/source/prado/datepicker/datepicker.js
+++ b/framework/Web/Javascripts/source/prado/datepicker/datepicker.js
@@ -508,6 +508,7 @@ Prado.WebUI.TDatePicker.prototype =
 	setMonth : function (month)
 	{
 		var d = this.newDate(this.selectedDate);
+		d.setDate(Math.min(d.getDate(), this.getDaysPerMonth(month,d.getFullYear())));
 		d.setMonth(month);
 		this.setSelectedDate(d);
 	},
@@ -522,6 +523,16 @@ Prado.WebUI.TDatePicker.prototype =
 		this.setMonth(this.selectedDate.getMonth()-1);
 	},
 
+	getDaysPerMonth : function (month, year)
+	{
+		month = (Number(month)+12) % 12;
+        var days = [31,28,31,30,31,30,31,31,30,31,30,31];
+		var res = days[month];
+		if (month == 1 && ((!(year % 4) && (year % 100)) || !(year % 400))) //feburary, leap years has 29
+            res++;
+        return res;
+	},
+
 	getDatePickerOffsetHeight : function()
 	{
 		if(this.options.InputMode == "TextBox")
-- 
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