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Version Q2 2011 released 07/12/2011
select

Slider / Server-side Events

Value set from the server-side event handler: None
Values set from the server-side event handler:
SelectionStart:None
SelectionEnd:None

  • Slider server side events

    RadSlider raises the OnValueChanged server side event when its value has been changed.
    Set the AutoPostBack property in order for the event to be raised right after the value is changed on the client.

Source Code

C# VB.NET
Show code in new window Demo isolation steps
  • <%@ Page Language="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.Web.Examples.Slider.ServerSideEvents.DefaultVB"%>
    <%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
    <%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
    <%@ 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 id="Headtag1" runat="server"/>
        </head>
        <body class="BODY">
            <form id="Form1" method="post" runat="server">
                <qsf:header id="Header1" runat="server" NavigationLanguage="VB"/>
                 <telerik:RadScriptManager ID="RadScriptManager1" runat="server"></telerik:RadScriptManager>
                 <asp:UpdatePanel runat="server" ID="UpdatePanel1">
                    <ContentTemplate>
                        <telerik:RadSlider runat="server" ID="RadSlider1"
                            OnValueChanged="RadSlider1_ValueChanged"
                            AutoPostBack="true"/>
                        <div style="margin:10px 0px;width:300px;" class="module">Value set from the server-side event handler: <b><asp:Label ID="Label1" runat="server" Text="None"/></b></div>
                    </ContentTemplate>
                 </asp:UpdatePanel>
                <asp:UpdatePanel runat="server" ID="UpdatePanel2">
                    <ContentTemplate>
                        <telerik:RadSlider runat="server" ID="RadSlider2"
                         IsSelectionRangeEnabled="true"
                            OnValueChanged="RadSlider2_ValueChanged"
                            SelectionStart="20" SelectionEnd="80"
                            MinimumValue="0" MaximumValue="100"
                            AutoPostBack="true"/>
                        <div style="margin:10px 0px;width:300px;" class="module">Values set from the server-side event handler:<br/> <b><asp:Label ID="Label2" runat="server" Text="SelectionStart:None<br/>SelectionEnd:None"/></b></div>
                    </ContentTemplate>
                 </asp:UpdatePanel>
                <qsf:footer runat="server" id="Footer1"/></form>
        </body>
    </html>

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