Calender Control In Ajax

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<%@ Register Assembly="CalendarExtenderPlus" Namespace="AjaxControlToolkitPlus" TagPrefix="ajaxToolkit" %>

<form id="form1" runat="server">

    <asp:ScriptManager ID="ScriptManager1" runat="server" />

 

<asp:TextBox ID="txtTimeIn" runat="server"  AutoPostBack="true"></asp:TextBox> <ajaxToolkit:CalendarExtender ID="Calendar1" ClientIDMode="AutoID" runat="server" Format="dd/MM/yyyy" TargetControlID="txtTimeIn">
                                </ajaxToolkit:CalendarExtender>                               

</form>

 

 Restrict the calendar to only allow selection of the current date only not  previous date and next Date.

 C# Code

Calendar1.StartDate = DateTime.Today;
Calendar1.EndDate = DateTime.Today;

If Calander in Girdview then use on Row Data Bound

 protected void Girdview1_RowDataBound(object sender, GridViewRowEventArgs e)
    {

     if (e.Row.RowType == DataControlRowType.DataRow)
        {
            (e.Row.FindControl("Calendar1") as AjaxControlToolkit.CalendarExtender).StartDate = DateTime.Today;
            (e.Row.FindControl("Calendar1") as AjaxControlToolkit.CalendarExtender).EndDate = DateTime.Today; 

 }

}