Tuesday, August 14, 2012

Calender Extender [AjaxToolkit] enable month selection and apply rules b/w tow cal extenders

 
 
<asp:Content ID="Content3" ContentPlaceHolderID="ContentContent" runat="server">
 
        <script type="text/javascript">
 
 
            var cal1;
            var cal2;
 
 
            function pageLoad() {
                cal1 = $find("calendar1");
                cal2 = $find("calendar2");
 
                    //modify cal ext delegate to support month selection and stop further date selection
                modifyCalDelegates(cal1);
                //modifyCalDelegates(cal2);
            }
 
 
            function modifyCalDelegates(cal) {
                //we need to modify the original delegate of the month cell.
                cal._cell$delegates = {
                    mouseover: Function.createDelegate(cal, cal._cell_onmouseover),
                    mouseout: Function.createDelegate(cal, cal._cell_onmouseout),
 
 
                    click: Function.createDelegate(cal, function(e) {
                        /// <summary>
                        /// Handles the click event of a cell
                        /// </summary>
                        /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>
 
 
                        e.stopPropagation();
                        e.preventDefault();
 
 
                        if (!cal._enabled) return;
 
 
                        var target = e.target;
                        var visibleDate = cal._getEffectiveVisibleDate();
                        Sys.UI.DomElement.removeCssClass(target.parentNode, "ajax__calendar_hover");
                        switch (target.mode) {
                            case "prev":
                            case "next":
                                cal._switchMonth(target.date);
                                break;
                            case "title":
                                switch (cal._mode) {
                                    case "days": cal._switchMode("months"); break;
                                    case "months": cal._switchMode("years"); break;
                                }
                                break;
                            case "month":
                                //if the mode is month, then stop switching to day mode.
                                if (target.month == visibleDate.getMonth()) {
                                    //this._switchMode("days");
                                } else {
                                    cal._visibleDate = target.date;
                                    //this._switchMode("days");
                                }
                                cal.set_selectedDate(target.date);
                                cal._switchMonth(target.date);
                                cal._blur.post(true);
                                cal.raiseDateSelectionChanged();
                                break;
                            case "year":
                                if (target.date.getFullYear() == visibleDate.getFullYear()) {
                                    cal._switchMode("months");
                                } else {
                                    cal._visibleDate = target.date;
                                    cal._switchMode("months");
                                }
                                break;
 
 
                            //                case "day":
                            //                    this.set_selectedDate(target.date);
                            //                    this._switchMonth(target.date);
                            //                    this._blur.post(true);
                            //                    this.raiseDateSelectionChanged();
                            //                    break;
                            case "today":
                                cal.set_selectedDate(target.date);
                                cal._switchMonth(target.date);
                                cal._blur.post(true);
                                cal.raiseDateSelectionChanged();
                                break;
                        }
 
 
                    })
                }
 
 
            }
 
 
            function onCalendarShown(sender, args) {
                //set the default mode to month
                sender._switchMode("months", true);
                changeCellHandlers(cal1);
            }
 
 
 
 
            function changeCellHandlers(cal) {
 
 
                if (cal._monthsBody) {
 
 
                    //remove the old handler of each month body.
                    for (var i = 0; i < cal._monthsBody.rows.length; i++) {
                        var row = cal._monthsBody.rows[i];
                        for (var j = 0; j < row.cells.length; j++) {
                            $common.removeHandlers(row.cells[j].firstChild, cal._cell$delegates);
                        }
                    }
                    //add the new handler of each month body.
                    for (var i = 0; i < cal._monthsBody.rows.length; i++) {
                        var row = cal._monthsBody.rows[i];
                        for (var j = 0; j < row.cells.length; j++) {
                            $addHandlers(row.cells[j].firstChild, cal._cell$delegates);
                        }
                    }
 
 
                }
            }
 
 
            function onCalendarHidden(sender, args) {
 
 
                if (sender.get_selectedDate()) {
                    if (cal1.get_selectedDate() && cal2.get_selectedDate() && cal1.get_selectedDate() > cal2.get_selectedDate()) {
                        alert('The "From" Date should smaller than the "To" Date, please reselect!');
                        sender.show();
                        return;
                    }
                    //get the final date
                    var finalDate = new Date(sender.get_selectedDate());
                    var selectedMonth = finalDate.getMonth();
                    finalDate.setDate(1);
                    if (sender == cal1) {
                        // set the calender2's default date 10th day of the next month as per calender1
                        finalDate.setMonth(selectedMonth + 1);
                        finalDate.setDate(finalDate.getDate() + 9);
                        finalDate = new Date(finalDate);
                    }
                    //set the date to the TextBox
                    cal2.get_element().value = finalDate.format(cal2._format);
                }
            }
 
 
        </script>
 
 
        <div>
            TP :
            <asp:TextBox ID="TextBox1" runat="server" AutoCompleteType="Disabled"></asp:TextBox>
            <ajaxToolkit:CalendarExtender ID="CalendarExtender1" BehaviorID="calendar1" runat="server"
                Enabled="True" Format="yyyyMM" TargetControlID="TextBox1" OnClientShown="onCalendarShown"
                OnClientHidden="onCalendarHidden">
            </ajaxToolkit:CalendarExtender>
            SD :
            <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
            <ajaxToolkit:CalendarExtender ID="CalendarExtender2" BehaviorID="calendar2" runat="server"
                Enabled="True" Format="yyyy/MM/dd" TargetControlID="TextBox2" >
            </ajaxToolkit:CalendarExtender>
        </div>
</asp:Content>
 

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