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Version Q2 2011 released 07/12/2011
select

Calendar / Client-side API

Select date:      
Popup


DatePicker PopupButton popup above:


Select Min/MaxDate for the RadDatePicker:



MinDate:
MaxDate:
Event Logger









  • RadDatePicker exposes a rich client-side API that allows you to control its behavior.

    You can manipulate the Min/MaxDate values using the following client-side properties:
    • get_minDate( ) - Returns the date, representing the MinDate of the datepicker.
    • set_minDate(date) - if the date is valid, the datepicker MinDate is set to it.
    • get_maxDate( ) - Returns the date, representing the MaxDate of the datepicker.
    • set_maxDate(date) - if the date is valid, the datepicker MaxDate is set to it.


    You can manipulate the date selection by using the get_selectedDate()/set_selectedDate(newValue) method pair:
    var date = datePicker.get_selectedDate();
    date.setDate(date.getDate() + 1);
    datePicker.set_selectedDate(date);

    The datepicker child controls (RadDateInput, RadCalendar, DatePopupButton) are available via the DateInput, Calendar, and DatePopupButton properties.

    Customizing the popup logic is done by using the set_popupDirection() method to set the PopupDirection property on the client. This method recognizes four values:
    • TopLeft
    • TopRight
    • BottomLeft
    • BottomRight


    After the direction is set, you can display the calendar with the showPopup() method.

Source Code

C# VB.NET
Show code in new window Demo isolation steps
  • <%@ Page CodeFile="DefaultVB.aspx.vb" Language="vb" AutoEventWireup="false" Inherits="Telerik.Web.Examples.Calendar.Functionality.ClientAPI.DefaultVB" %>

    <%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
    <%@ Register TagPrefix="qsf" TagName="Header" Src="~/Common/Header.ascx" %>
    <%@ Register TagPrefix="qsf" TagName="HeadTag" Src="~/Common/HeadTag.ascx" %>
    <%@ Register TagPrefix="qsf" TagName="Footer" Src="~/Common/Footer.ascx" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        <qsf:HeadTag runat="server" ID="Headtag1"></qsf:HeadTag>
    </head>
    <body class="BODY">
        <form runat="server" id="mainForm" method="post">
        <qsf:Header ID="Header1" runat="server" NavigationLanguage="VB"></qsf:Header>
        <telerik:RadScriptManager ID="RadScriptManager1" runat="server" />
        <telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
            <script type="text/javascript">
        //<![CDATA[
                function NextDay(e)
                {
                    var datePicker = $find("<%= RadDatePicker1.ClientID %>"); ;

                    var date = datePicker.get_selectedDate();

                    if (datePicker.isEmpty())
                        date = new Date();

                    date.setDate(date.getDate() + 1);
                    datePicker.set_selectedDate(date);

                    CancelPopupClose(e);

                    $get("log").innerHTML += "DatePicker.SelectedDate changed to " + date.format("MM/dd/yyyy") + "<br />";
                    $get("log").scrollTop = 10000000;
                }

                function PrevDay(e)
                {
                    var datePicker = $find("<%= RadDatePicker1.ClientID %>"); ;

                    var date = datePicker.get_selectedDate();

                    if (datePicker.isEmpty())
                        date = new Date();

                    date.setDate(date.getDate() - 1);
                    datePicker.set_selectedDate(date);

                    CancelPopupClose(e);

                    $get("log").innerHTML += "DatePicker.SelectedDate changed to " + date.format("MM/dd/yyyy") + "<br />";
                    $get("log").scrollTop = 10000000;
                }

                function PopupAbove(e, pickerID)
                {
                    var datePicker;
                    if (pickerID == null)
                    {
                        datePicker = $find("<%= RadDatePicker1.ClientID %>");
                    }
                    else
                    {
                        datePicker = $find(pickerID);
                    }
                    datePicker.set_popupDirection(Telerik.Web.RadDatePickerPopupDirection.TopRight); // Set the popup direction to TopRight
                    datePicker.showPopup();
                    datePicker.set_popupDirection(Telerik.Web.RadDatePickerPopupDirection.BottomRight); // Set the popup direction back to default (BottomRight)
                }

                function CancelPopupClose(e)
                {
                    if (e.stopPropagation)
                        e.stopPropagation();
                    e.cancelBubble = true;
                }

                function setMinDate(minDate)
                {
                    var RadDatePicker3 = $find("<%= RadDatePicker3.ClientID %>");
                    if (minDate.checked)
                    {
                        var date1 = new Date(2005, 0, 1);
                        RadDatePicker3.set_minDate(date1);
                        $get("log").innerHTML += "DatePicker.MinDate changed to 2005/01/01 <br />";
                        $get("log").scrollTop = 10000000;
                    }
                    else
                    {
                        var date1 = new Date(1900, 0, 1);
                        RadDatePicker3.set_minDate(date1);
                        $get("log").innerHTML += "DatePicker.MinDate changed to 1900/01/01 <br />";
                        $get("log").scrollTop = 10000000;
                    }
                }

                function setMaxDate(maxDate)
                {
                    var date1 = new Date(2012, 0, 1);
                    var RadDatePicker3 = $find("<%= RadDatePicker3.ClientID %>");
                    if (maxDate.checked)
                    {
                        RadDatePicker3.set_maxDate(date1);
                        $get("log").innerHTML += "DatePicker.MaxDate changed to 2012/01/01 <br />";
                        $get("log").scrollTop = 10000000;
                    }
                    else
                    {
                        var date1 = new Date(2050, 0, 1);
                        RadDatePicker3.set_maxDate(date1);
                        $get("log").innerHTML += "DatePicker.MaxDate changed to 2050/01/01 <br />";
                        $get("log").scrollTop = 10000000;
                    }
                }

                function Enable(control)
                {
                    var RadDatePicker3 = $find("<%= RadDatePicker3.ClientID %>");
                    if (control.checked)
                    {
                        RadDatePicker3.set_enabled(true);
                        $get("log").innerHTML += "RadDatePicker Enabled <br />";
                        $get("log").scrollTop = 10000000;
                    }
                    else
                    {
                        RadDatePicker3.set_enabled(false);
                        $get("log").innerHTML += "RadDatePicker Disabled <br />";
                        $get("log").scrollTop = 10000000;
                    }
                }

                function clearText()
                {
                    var RadDatePicker3 = $find("<%= RadDatePicker3.ClientID %>");
                    RadDatePicker3.clear();
                    $get("log").innerHTML += "DatePicker value cleared<br />";
                    $get("log").scrollTop = 10000000;
                }
      //]]>
            </script>
        </telerik:RadCodeBlock>
        <telerik:RadFormDecorator ID="RadFormDecorator1" runat="server" DecoratedControls="Buttons" />
        <div style="float: left">
            <fieldset style="width: 420px;">
                <legend>Select date:</legend>
                <telerik:RadDatePicker ID="RadDatePicker1" MinDate="2006/01/01" runat="server" ZIndex="30001">
                </telerik:RadDatePicker>
                &nbsp;
                <button onclick="javascript: NextDay(event); return false">
                    Move to next day</button>&nbsp;
                <button onclick="javascript: PrevDay(event); return false">
                    Move to previous day</button>&nbsp;
                <br />
                <span>Popup</span><br />
                <button onclick="javascript: PopupAbove(event); return false;">
                    Popup above input</button>
                <br />
                <br />
            </fieldset>
            <fieldset style="width: 420px">
                DatePicker PopupButton popup above:
                <br />
                <telerik:RadDatePicker ID="RadDatePicker2" MinDate="2006/1/1" runat="server">
                </telerik:RadDatePicker>
                <br />
                <br />
            </fieldset>
            <fieldset style="width: 420px">
                <legend>Select Min/MaxDate for the RadDatePicker: </legend>
                <div style="float: left;">
                    <telerik:RadDatePicker ID="RadDatePicker3" runat="server">
                    </telerik:RadDatePicker>
                    <br />
    <asp:CheckBox runat="server" ID="Enabled" Checked="true" Text="RadDatePicker Enabled"
    onclick="Enable(this);" />
                    <br />
                    <button onclick="javascript: clearText(); return false;">
                        Clear DatePicker value</button>
                </div>
                <div style="float: right;">
                    <br />
                    MinDate:<asp:CheckBox runat="server" ID="MinDate" Text="2005/01/01" onclick="setMinDate(this);" />
                    <br />
                    MaxDate:<asp:CheckBox runat="server" ID="MaxDate" Text="2012/01/01" onclick="setMaxDate(this);" />
                </div>
            </fieldset>
        </div>
        <fieldset style="width: 280px; float: right;">
            <legend>Event Logger </legend>
            <div id="log" style="float: right; height: 54px; width: 270px; border: 1px solid Teal;
                color: Teal; overflow-y: scroll">
            </div>
        </fieldset>
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <div style="clear: both">
            <!-- -->
        </div>
        <qsf:Footer ID="Footer1" runat="server"></qsf:Footer>
        </form>
    </body>
    </html>

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