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Version Q2 2011 released 07/12/2011
select

Slider / Client-side API


Configure slider:
Value/SelectionStart:  
SelectionEnd:  
Width (px):  
Height (px):  
MinimumValue:  
MaximumValue:  
AnimationDuration:  
SmallChange:  
LargeChange:  
Orientation:
TrackPosition:
Enabled: TrackMouseWheel:
ShowDragHandle: LiveDrag:
ShowDecreaseHandle: ShowIncreaseHandle:
IsSelectionRangeEnabled: IsDirectionReversed:
EnableDragRange:
Preview:

  • Client-Side API

    RadSlider provides a flexible client-side API allowing you to change all exposed properties, as well as instantiate a RadSlider control directly on the client.

    See the help section which describes how to use the client-side API in details.

Source Code

C# VB.NET
Show code in new window Demo isolation steps
  • <%@ Page Language="vb" AutoEventWireup="true" Inherits="Telerik.Web.Examples.Slider.ClientSideAPI.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" %>
    <!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>
        <telerik:RadFormDecorator ID="RadFormDecorator1" runat="server" DecoratedControls="All" />
        <script type="text/javascript">
            //<![CDATA[
            function HandleValueChanged(sender,eventArgs)
            {
                $get("RadSlider1_Value").value = (sender.get_isSelectionRangeEnabled())
                                                    ? sender.get_selectionStart()
                                                    : sender.get_value();
                $get("RadSlider1_SelectionEnd").value = sender.get_selectionEnd();
            }

            function GetSlider()
            {
                return $find("<%= RadSlider1.ClientID %>");
            }

            function SetOrientation(sender,args)
            {
                var slider = GetSlider();

                var toHorizontal = (sender.get_selectedItem().get_value() == 'Horizontal');
                var newOrientation = toHorizontal ? Telerik.Web.UI.Orientation.Horizontal : Telerik.Web.UI.Orientation.Vertical;
                var width = parseInt(slider.get_width());
                var height = parseInt(slider.get_height());

                // Switch the width and height if necessary.
                if ((toHorizontal && (width < height)) || (!toHorizontal && (height < width)))
                {
                    slider.set_width(height);
                    $get("RadSlider1_Width").value = height;

                    slider.set_height(width);
                    $get("RadSlider1_Height").value = width;
                }

                slider.set_orientation(newOrientation);
            }

            function SetTrackPosition(sender,args)
            {
                var selectValue = sender.get_selectedItem().get_value();
                var newTrackPosition = Telerik.Web.UI.SliderTrackPosition.Center;
                if (selectValue == 'TopLeft')
                {
                    newTrackPosition = Telerik.Web.UI.SliderTrackPosition.TopLeft;
                }
                else if (selectValue == 'BottomRight')
                {
                    newTrackPosition = Telerik.Web.UI.SliderTrackPosition.BottomRight;
                }

                var slider = GetSlider();
                slider.set_trackPosition(newTrackPosition);
            }

            function SetWidth()
            {
                var value = parseInt($get("RadSlider1_Width").value);
                if (isNaN(value)) return;

                var slider = GetSlider();
                slider.set_width(value);
            }

            function SetHeight()
            {
                var value = parseInt($get("RadSlider1_Height").value);
                if (isNaN(value)) return;

                var slider = GetSlider();
                slider.set_height(value);
            }

            function SetValue()
            {
                var slider = GetSlider();
                var newValue = $get("RadSlider1_Value").value;
                if (slider.get_isSelectionRangeEnabled())
                {
                    slider.set_selectionStart(newValue);
                }
                else
                {
                    slider.set_value(newValue);
                }
            }

            function SetSelectionEnd()
            {
                var slider = GetSlider();
                slider.set_selectionEnd($get("RadSlider1_SelectionEnd").value);
            }

            function ToggleDragHandleVisible()
            {
                var slider = GetSlider();
                slider.set_showDragHandle(!slider.get_showDragHandle());
            }

            function ToggleDecreaseHandleVisible()
            {
                var slider = GetSlider();
                slider.set_showDecreaseHandle(!slider.get_showDecreaseHandle());
            }

            function ToggleIncreaseHandleVisible()
            {
                var slider = GetSlider();
                slider.set_showIncreaseHandle(!slider.get_showIncreaseHandle());
            }

            function ToggleEnabled()
            {
                var slider = GetSlider();
                slider.set_enabled(!slider.get_enabled());
            }

            function ToggleTrackMouseWheel()
            {
                var slider = GetSlider();
                slider.set_trackMouseWheel(!slider.get_trackMouseWheel());
            }

            function ToggleIsSelectionRangeEnabled()
            {
                var slider = GetSlider();
                slider.set_isSelectionRangeEnabled(!slider.get_isSelectionRangeEnabled());

                // The selectionStart value might change when you change the IsSelectionRangeEnabled property.
                HandleValueChanged(slider);

                var selectionEndCell = $get('selectionEndCell');
                if (slider.get_isSelectionRangeEnabled())
                {
                    selectionEndCell.style.visibility = '';
                }
                else
                {
                    selectionEndCell.style.visibility = 'hidden';
                }
            }

            function SetSmallChange()
            {
                var value = $get("RadSlider1_SmallChange").value;

                var slider = GetSlider();
                slider.set_smallChange(value);
            }

            function SetLargeChange()
            {
                var value = $get("RadSlider1_LargeChange").value;

                var slider = GetSlider();
                slider.set_largeChange(value);
            }

            function ToggleIsDirectionReversed()
            {
                var slider = GetSlider();
                slider.set_isDirectionReversed(!slider.get_isDirectionReversed());

                // The selectionStart value might change when you change the IsDirectionReversed property,
                // e.g. when IsSelectionRangeEnabled=true.
                HandleValueChanged(slider);
            }

            function ToggleEnableDragRange()
            {
                var slider = GetSlider();
                slider.set_enableDragRange(!slider.get_enableDragRange());
            }

            function ToggleLiveDrag()
            {
                var slider = GetSlider();
                slider.set_liveDrag(!slider.get_liveDrag());
            }

            function SetMinimumValue()
            {
                var value = $get("RadSlider1_Minimum").value;

                var slider = GetSlider();
                slider.set_minimumValue(value);

                // The selectionStart value might change when you change the MinimumValue property,
                // e.g. when minimumValue becomes larger than selectionStart.
                HandleValueChanged(slider);
            }

            function SetMaximumValue()
            {
                var value = $get("RadSlider1_Maximum").value;

                var slider = GetSlider();
                slider.set_maximumValue(value);

                // The selectionEnd value might change when you change the MaximumValue property,
                // e.g. when MaximumValue becomes smaller than selectionEnd.
                HandleValueChanged(slider);
            }

            function SetAnimationDuration()
            {
                var value = parseInt($get("RadSlider1_AnimationDuration").value);
                if (isNaN(value)) return;

                var slider = GetSlider();
                slider.set_animationDuration(value);
            }
            //]]>
        </script>
        <div class="module" style="width: 415px; float: left; padding: 0 0 5px 10px;">
            <table id="ToolTipConfigurator" style="width: 405px; height: 490px; border: 0px;"
                runat="server">
                <tr>
                    <td colspan="4" style="height: 49px;">
                        <br />
                        <strong>Configure slider:</strong><br />
                        <hr />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblValue" runat="server" Text="Value/SelectionStart:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:TextBox ID="RadSlider1_Value" runat="server" Style="width: 40px"></asp:TextBox>&nbsp;
    <asp:Button ID="btnValue" runat="server" OnClientClick="SetValue();return false;"
    Text="Set" />
                    </td>
                </tr>
                <tr id="selectionEndCell">
                    <td>
                        <asp:Label ID="lblSelectionEnd" runat="server" Text="SelectionEnd:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:TextBox ID="RadSlider1_SelectionEnd" runat="server" Style="width: 40px"></asp:TextBox>&nbsp;
    <asp:Button ID="btnSelectionEnd" runat="server" OnClientClick="SetSelectionEnd();return false;"
    Text="Set" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblWidth" runat="server" Text="Width (px):"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:TextBox ID="RadSlider1_Width" runat="server" Style="width: 40px"></asp:TextBox>&nbsp;
    <asp:Button ID="btnWidth" runat="server" OnClientClick="SetWidth();return false;"
    Text="Set" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblHeight" runat="server" Text="Height (px):"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:TextBox ID="RadSlider1_Height" runat="server" Style="width: 40px"></asp:TextBox>&nbsp;
    <asp:Button ID="btnHeight" runat="server" OnClientClick="SetHeight();return false;"
    Text="Set" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblMinimumValue" runat="server" Text="MinimumValue:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:TextBox ID="RadSlider1_Minimum" runat="server" Style="width: 40px"></asp:TextBox>&nbsp;
    <asp:Button ID="btnMinimumValue" runat="server" OnClientClick="SetMinimumValue();return false;"
    Text="Set" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblMaximumValue" runat="server" Text="MaximumValue:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:TextBox ID="RadSlider1_Maximum" runat="server" Style="width: 40px"></asp:TextBox>&nbsp;
    <asp:Button ID="btnMaximumValue" runat="server" OnClientClick="SetMaximumValue();return false;"
    Text="Set" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblAnimationDuration" runat="server" Text="AnimationDuration:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:TextBox ID="RadSlider1_AnimationDuration" runat="server" Style="width: 40px"></asp:TextBox>&nbsp;
    <asp:Button ID="btnAnimationDuration" runat="server" OnClientClick="SetAnimationDuration();return false;"
    Text="Set" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblSmallChange" runat="server" Text="SmallChange:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:TextBox ID="RadSlider1_SmallChange" runat="server" Style="width: 40px"></asp:TextBox>&nbsp;
    <asp:Button ID="btnSmallChange" runat="server" OnClientClick="SetSmallChange();return false;"
    Text="Set" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblLargeChange" runat="server" Text="LargeChange:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:TextBox ID="RadSlider1_LargeChange" runat="server" Style="width: 40px"></asp:TextBox>&nbsp;
    <asp:Button ID="btnLargeChange" runat="server" OnClientClick="SetLargeChange();return false;"
    Text="Set" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblOrientation" runat="server" Text="Orientation:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <telerik:RadSlider ID="RadSlider1_Orientation" runat="server" ItemType="Item" TrackPosition="BottomRight"
                            Height="35px" Width="250px" OnClientValueChanged="SetOrientation" LiveDrag="false">
                            <Items>
                                <telerik:RadSliderItem Text="Horizontal" Value="Horizontal" />
                                <telerik:RadSliderItem Text="Vertical" Value="Vertical" />
                            </Items>
                        </telerik:RadSlider>
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblTrackPosition" runat="server" Text="TrackPosition:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <telerik:RadSlider ID="RadSlider1_TrackPosition" runat="server" ItemType="Item" TrackPosition="BottomRight"
                            Height="35px" Width="250px" OnClientValueChanged="SetTrackPosition" LiveDrag="false">
                            <Items>
                                <telerik:RadSliderItem Text="BottomRight" Value="BottomRight" />
                                <telerik:RadSliderItem Text="Center" Value="Center" />
                                <telerik:RadSliderItem Text="TopLeft" Value="TopLeft" />
                            </Items>
                        </telerik:RadSlider>
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblEnabled" runat="server" Text="Enabled:"></asp:Label>
                    </td>
                    <td style="width: 30px;">
                        <asp:CheckBox ID="RadSlider1_Enabled" runat="server" onclick="ToggleEnabled();" />
                    </td>
                    <td>
                        <asp:Label ID="lblTrackMouseWheel" runat="server" Text="TrackMouseWheel:"></asp:Label>
                    </td>
                    <td style="width: 30px;">
                        <asp:CheckBox ID="RadSlider1_TrackMouseWheel" runat="server" onclick="ToggleTrackMouseWheel();" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblShowDragHandle" runat="server" Text="ShowDragHandle:"></asp:Label>
                    </td>
                    <td style="width: 30px;">
                        <asp:CheckBox ID="RadSlider1_ShowDragHandle" runat="server" onclick="ToggleDragHandleVisible();" />
                    </td>
                    <td>
                        <asp:Label ID="lblLiveDrag" runat="server" Text="LiveDrag:"></asp:Label>
                    </td>
                    <td style="width: 30px;">
                        <asp:CheckBox ID="RadSlider1_LiveDrag" runat="server" onclick="ToggleLiveDrag();" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblShowDecreaseHandle" runat="server" Text="ShowDecreaseHandle:"></asp:Label>
                    </td>
                    <td style="width: 30px;">
                        <asp:CheckBox ID="RadSlider1_ShowDecreaseHandle" runat="server" onclick="ToggleDecreaseHandleVisible();" />
                    </td>
                    <td>
                        <asp:Label ID="lblShowIncreaseHandle" runat="server" Text="ShowIncreaseHandle:"></asp:Label>
                    </td>
                    <td style="width: 30px;">
                        <asp:CheckBox ID="RadSlider1_ShowIncreaseHandle" runat="server" onclick="ToggleIncreaseHandleVisible();" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblIsSelectionRangeEnabled" runat="server" Text="IsSelectionRangeEnabled:"></asp:Label>
                    </td>
                    <td style="width: 30px;">
                        <asp:CheckBox ID="RadSlider1_IsSelectionRangeEnabled" runat="server" onclick="ToggleIsSelectionRangeEnabled();" />
                    </td>
                    <td>
                        <asp:Label ID="lblIsDirectionReversed" runat="server" Text="IsDirectionReversed:"></asp:Label>
                    </td>
                    <td style="width: 30px;">
                        <asp:CheckBox ID="RadSlider1_IsDirectionReversed" runat="server" onclick="ToggleIsDirectionReversed();" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label ID="lblEnableDragRange" runat="server" Text="EnableDragRange:"></asp:Label>
                    </td>
                    <td colspan="3">
                        <asp:CheckBox ID="RadSlider1_EnableDragRange" runat="server" onclick="ToggleEnableDragRange();" />
                    </td>
                </tr>
            </table>
        </div>
        <div style="padding: 0px 39px; float: left; margin-bottom: 30px; width: 240px; height: 495px;
            overflow: auto; position: relative; border: #c6e1f2 1px solid;">
            <div style="padding-top: 20px;">
                <strong>Preview:</strong><br />
                <hr />
            </div>
            <telerik:RadSlider runat="server" ID="RadSlider1" Orientation="Vertical" Width="70px"
                ItemType="tick" SmallChange="5" LargeChange="10" IsSelectionRangeEnabled="true"
                SelectionStart="10" SelectionEnd="50" />
        </div>
        <div style="clear: both; height: 1px; margin-bottom: -1px;">
            <!-- -->
        </div>
        <qsf:Footer runat="server" ID="Footer1" />
        </form>
    </body>
    </html>

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