CalenderExtenders don't have OnDayRender Event, It is specially for Calendar Control. For CalenderExtender we can use some JS function:
CalenderExtenders:
CalenderExtenders:
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script type="text/javascript"> function checkDate(sender, args) { // 6 days var ms = new Date().getTime() + 6 * 86400000; var weekFar = new Date(ms); if (sender._selectedDate < weekFar) { //getTime() gives milliseconds //and 86400000 is the number of //milliseconds in a day. alert("You can't select a day earlier than a week!"); // set the date back to a week from today var ms1 = new Date().getTime() + 7 * 86400000; var weekFar1 = new Date(ms1); sender._selectedDate = weekFar1; sender._textbox.set_Value(sender. _selectedDate.format(sender._format)) } } </script> </head> <body> <form id="form1" runat="server"> <asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"> </asp:ToolkitScriptManager> <asp:TextBox ID="txtDateNeeded" runat="server" Width="5em"> </asp:TextBox> <asp:CalendarExtender ID="CalendarExtender1" OnClientDateSelectionChanged="checkDate" TargetControlID="txtDateNeeded" runat="server"/> </form></body></html>
Calendar Control:
<asp:Calendar ID="Calendar1" runat="server" Caption="" CaptionAlign="Top" CellPadding="2" CellSpacing="2" ShowTitle="true" OnDayRender="Calendar1_DayRender" Font-Names="verdana" Font-Size="Small"> <DayHeaderStyle BackColor="CadetBlue" HorizontalAlign="center" VerticalAlign="Middle" /> <WeekendDayStyle BackColor="gray"> </WeekendDayStyle> <SelectedDayStyle BackColor="BurlyWood" ForeColor="DarkBlue" Font-Names="Calibri" Font-Bold="true" /> </asp:Calendar> 'Code behind 'calendar disable certain dates Protected Sub Calendar1_DayRender(sender As Object, e As DayRenderEventArgs) If e.Day.Date <= DateTime.Now.AddDays(6) Then 'disable the date a week from today e.Cell.Enabled = False e.Day.IsSelectable = False e.Cell.ToolTip = "This date is not available" End If End Sub
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