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Version Q2 2011 released 07/12/2011
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Slider / Database-friendly Value setting

The RadSlider control provides DbValue property - by using it you can set the Value in a database-friendly way - e.g some of the sliders below have their DbValue property bound to null:

















  • RadSlider's DbValue property


    The RadSlider control provides DbValue property - by using it you can set the Value in a database-friendly way no matter the value in the database is null or a type which will need a convert before being set to the Value property.

Source Code

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

    <%@ 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" %>
    <%@ Register TagPrefix="sds" Namespace="Telerik.Web.SessionDS" %>
    <!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">
        <title></title>
        <qsf:HeadTag ID="Headtag1" runat="server" />
    </head>
    <body class="BODY">
        <form id="Form2" method="post" runat="server">
        <qsf:Header ID="Header1" runat="server" NavigationLanguage="VB" ShowSkinChooser="true" />
        <telerik:RadScriptManager ID="ScriptManager" runat="server" />
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="RadListView1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="RadListView1" LoadingPanelID="RadAjaxLoadingPanel1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>
        <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server">
        </telerik:RadAjaxLoadingPanel>
        <qsf:InformationBox ID="Info" runat="server">
            The <strong>RadSlider</strong> control provides <strong>DbValue</strong> property
            - by using it you can set the <strong>Value</strong> in a database-friendly way
            - e.g some of the sliders below have their <strong>DbValue</strong> property bound
            to <strong>null</strong>:
            <br />
        </qsf:InformationBox>
        <br />
        <br />
        <br />
        <br />
        <div style="width: 372px; height: 310px; background-image: url(back.jpg); background-repeat: no-repeat;
            margin: auto; padding-top: 95px; padding-left: 65px;">
            <telerik:RadSlider ID="slider" runat="server" Value='30' Orientation="Horizontal"
                MinimumValue="0" MaximumValue="50" LargeChange="10" TrackPosition="TopLeft" ShowIncreaseHandle="false"
                ShowDecreaseHandle="false" Width="240" ItemType="Tick" Height="50">
            </telerik:RadSlider>
            <br />
            <br />
            <br />
            <br />
            <telerik:RadListView ID="RadListView1" runat="server" OnNeedDataSource="RadListView1_NeedDataSource"
                Width="230">
                <ItemTemplate>
                    <td style="width: 30px;">
                        <telerik:RadSlider ID="slider" IsDirectionReversed="true" runat="server" DbValue='<%# Eval("Value") %>'
                            Orientation="Vertical" MinimumValue="0" MaximumValue="30" ShowIncreaseHandle="false"
                            Height="160" ShowDecreaseHandle="false" ItemType="Tick">
                        </telerik:RadSlider>
                        <br />
                    </td>
                </ItemTemplate>
                <LayoutTemplate>
                    <table cellspacing="0">
                        <tr>
                            <td id="itemPlaceholder" runat="server">
                            </td>
                        </tr>
                    </table>
                </LayoutTemplate>
            </telerik:RadListView>
        </div>
        <qsf:Footer runat="server" ID="Footer1" ShowCodeViewer="true" />
        </form>
    </body>
    </html>

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