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Range Selection

Multi Month View with enabled AutoPostBack

December 2024 - January 2025
December 2024 - January 2025
December
December
xSMTWTFS
4824252627282930
491234567
50891011121314
5115161718192021
5222232425262728
532930311234
January
January
xSMTWTFS
532930311234
2567891011
312131415161718
419202122232425
52627282930311
62345678

Single Month View

December 2024
December 2024
xSMTWTFS
4824252627282930
491234567
50891011121314
5115161718192021
5222232425262728
532930311234


  • Demo Configurator
  • Multi Month View Configuration
  • Single Month View Configurator
This example demonstrates the ASP.NET AJAX Calendar range selection between dates. To enable range selection feature you need to set the RangeSelectionMode property to one of the following values:
  • OnKeyHold - Allow range selection by pressing [Shift] key and clicking on the date.
  • ConsecutiveClicks - Allow range selection by clicking consecutively two dates.
By default the RangeSelectionMode property is set to None which does not allow range selection.

The range selection Start/End dates are available:
  • On client through RadCalendar.get_rangeSelectionStartDate() and RadCalendar.get_rangeSelectionEndDate() functions
  • On server through RadCalendar.RangeSelectionStartDate and RadCalendar.RangeSelectionEndDate properties

You could set dates in range programmatically by using:
  • RadCalendar.RangeSelectionStartDate and RadCalendar.RangeSelectionEndDate properties server side
  • RadCalendar.set_datesInRange(startDate, endDate) function client side

Please note that when the dates in range are selected any other date selection will unselect all dates from range selection
  • DefaultVB.aspx
  • DefaultVB.aspx.vb
  • scripts.js
<%@ Page CodeFile="DefaultVB.aspx.vb" Language="vb" AutoEventWireup="false" Inherits="Telerik.Web.Examples.Calendar.Functionality.MultiMonthView.DefaultVB" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <script src="scripts.js"></script>
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
        <script type="text/javascript">
            function pageLoad() {
                demo.initialize($find("<%= RadCalendar1.ClientID %>"), $find("<%= StartDate.ClientID %>"), $find("<%= EndDate.ClientID %>"));
            }
        </script>
    </telerik:RadCodeBlock>
    <telerik:RadAjaxManager runat="server" ID="RadAjaxManager1">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="RadCalendar2">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="RadCalendar2" UpdatePanelCssClass="" />
                </UpdatedControls>
            </telerik:AjaxSetting>
            <telerik:AjaxSetting AjaxControlID="RadCalendar1">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="RadCalendar1" UpdatePanelCssClass="" />
                </UpdatedControls>
            </telerik:AjaxSetting>
            <telerik:AjaxSetting AjaxControlID="ConfigurationPanel1">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="RadCalendar2" UpdatePanelCssClass="" />
                    <telerik:AjaxUpdatedControl ControlID="RadCalendar1" UpdatePanelCssClass="" />
                </UpdatedControls>
            </telerik:AjaxSetting>
        </AjaxSettings>

    </telerik:RadAjaxManager>
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1">
    </telerik:RadAjaxLoadingPanel>

    <div class="demo-containers" runat="server" id="Div1">
        <div class="demo-container" runat="server" id="containerDiv">
            <div class="demo-container no-bg" style="max-width: 650px; padding-right: 30px;">
                <h2>Multi Month View with enabled AutoPostBack</h2>
                <telerik:RadCalendar RenderMode="Lightweight" runat="server" ID="RadCalendar2" AutoPostBack="true" MultiViewColumns="2"
                    MultiViewRows="1" RangeSelectionMode="OnKeyHold" EnableViewSelector="true">
                </telerik:RadCalendar>
            </div>

            <div class="demo-container no-bg" style="max-width: 350px; padding-right: 30px;">
                <h2>Single Month View</h2>
                <telerik:RadCalendar RenderMode="Lightweight" runat="server" ID="RadCalendar1" RangeSelectionMode="OnKeyHold"
                    EnableViewSelector="true">
                    <ClientEvents OnDateClick="demo.onDateClick"></ClientEvents>
                </telerik:RadCalendar>
            </div>
            <br />
        </div>
    </div>
    <br />
    <qsf:ConfiguratorPanel Expanded="true" runat="server" ID="ConfigurationPanel1" Title="Demo Configurator">
        <Views>
            <qsf:View Title="Multi Month View Configuration">

                <qsf:ConfiguratorColumn ID="ConfiguratorColumn3" runat="server" Size="Wide">
                    <ul class="fb-group">
                        <li>
                            <span class="checkbox">
                                <asp:CheckBox AutoPostBack="true" ButtonType="ToggleButton" runat="server" Checked="true" OnCheckedChanged="RadioButton1_CheckedChanged"
                                    Text="Allow range selection by pressing [Shift] key and clicking on the date."
                                    ID="RadioButton1" GroupName="SingleCalendar"></asp:CheckBox>
                            </span>
                        </li>
                        <li>
                            <span class="checkbox">
                                <asp:CheckBox AutoPostBack="true" runat="server" OnCheckedChanged="RadioButton2_CheckedChanged"
                                    Text="Allow range selection by clicking consecutively two dates." ID="RadioButton2"
                                    GroupName="SingleCalendar"></asp:CheckBox>
                            </span>
                        </li>
                    </ul>
                </qsf:ConfiguratorColumn>

                <qsf:ConfiguratorColumn ID="ConfiguratorColumn2" runat="server" Size="Medium">
                    <ul class="fb-group">
                        <li>
                            <qsf:DatePicker runat="server" Label="Start Date:" ID="RadDatePicker1">
                            </qsf:DatePicker>
                        </li>
                        <li>
                            <qsf:DatePicker runat="server" Label="End Date:" ID="RadDatePicker2">
                            </qsf:DatePicker>
                        </li>
                        <li>
                            <qsf:Button runat="server" ID="Button1" Text="Set range" OnClick="Button1_Click"></qsf:Button>
                        </li>
                    </ul>
                </qsf:ConfiguratorColumn>
            </qsf:View>
            <qsf:View Title="Single Month View Configurator">
                <qsf:ConfiguratorColumn ID="ConfiguratorColumn1" runat="server" Size="Wide">
                    <ul class="fb-group">
                        <li>
                            <span class="checkbox">
                                <asp:CheckBox AutoPostBack="true" runat="server" Checked="true" OnCheckedChanged="RadioButton3_CheckedChanged"
                                    Text="Allow range selection by pressing [Shift] key and clicking on the date."
                                    ID="RadioButton3" GroupName="MultiCalendar"></asp:CheckBox>
                            </span>
                        </li>
                        <li>
                            <span class="checkbox">
                                <asp:CheckBox AutoPostBack="true" runat="server" OnCheckedChanged="RadioButton4_CheckedChanged"
                                    Text="Allow range selection by clicking consecutively two dates." ID="RadioButton4"
                                    GroupName="MultiCalendar"></asp:CheckBox>
                            </span>
                        </li>
                    </ul>
                </qsf:ConfiguratorColumn>
                <qsf:ConfiguratorColumn ID="ConfiguratorColumn4" runat="server" Size="Medium">
                    <ul class="fb-group">
                        <li>
                            <qsf:DatePicker AutoPostBack="false" runat="server" Label="Start Date:" ID="StartDate">
                            </qsf:DatePicker>
                        </li>
                        <li>
                            <qsf:DatePicker runat="server" AutoPostBack="false" Label="End Date:" ID="EndDate">
                            </qsf:DatePicker>
                        </li>
                        <li>
                            <qsf:Button runat="server" AutoPostBack="false" ID="Button2" Text="Set range" OnClientClicked="demo.setRanage"></qsf:Button>
                        </li>
                    </ul>
                </qsf:ConfiguratorColumn>
            </qsf:View>
        </Views>
    </qsf:ConfiguratorPanel>

    </form>
</body>
</html>

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