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Version Q2 2011 released 07/12/2011
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Button / Client-side API

Client-Side API Commands:
  • Enter a URL, e.g. http://www.telerik.com
  • Set Auto PostBack

  • Client-Side API

    RadButton provides flexible and rich client-side API. Here are some of the key client-side functions:

    • get_text() - Returns the text displayed in the RadButton control
    • set_text(text) - Sets a text to be displayed in the RadButton control
    • get_autoPostBack() - Returns a bool value indicating whether the control will automatically postback to the server
    • set_autoPostBack(true/false) - Disables or enables the AutoPostBack behavior of the RadButton control.

    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" %>

    <%@ 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" />
        <style type="text/css">
            ul, ul li
            {
                margin: 0;
                padding: 0;
                border: 0;
                list-style: none;
                height: auto;
                display: block;
            }
            ul li
            {
                padding: 2px 0;
            }
            
            .RadButtonWrapper
            {
                float: left;
                border: solid 1px #9c9c9c;
                padding: 5px 5px 5px 17px;
                margin-right: 200px;
                width: 170px;
                background: #F1F1F1;
            }
            
            .qsfDark .RadButtonWrapper
            {
                background: #1a1212;
                border: 1px solid #666;
            }
        </style>
    </head>
    <body class="BODY">
        <form id="form1" runat="server">
        <qsf:Header ID="Header1" runat="server" NavigationLanguage="VB" />
        <telerik:RadScriptManager ID="ScriptManager1" runat="server" />
        <telerik:RadFormDecorator ID="RadFormDecorator1" runat="server" DecoratedControls="All" />
        <script type="text/javascript">
            //<![CDATA[
            var standardButton = null;
            var toggleButton = null;
            var linkButton = null;

            function pageLoad()
            {
                standardButton = $find("<%= RadButton1.ClientID %>");
                toggleButton = $find("<%= RadButton2.ClientID %>");
                linkButton = $find("<%= RadButton3.ClientID %>");
            }

            function SetButtonsText()
            {
                var buttonTextValue = $get("txtSetButtonText").value;
                standardButton.set_text(buttonTextValue);
                toggleButton.set_text(buttonTextValue);
                linkButton.set_text(buttonTextValue);
            }

            function GetButtonsText()
            {
                alert("The names of the buttons are:\n" + standardButton.get_text() + "\n" + toggleButton.get_text() + "\n" + linkButton.get_text());
            }

            function GetButtonsType()
            {
                alert("The types of the buttons are respectively:\n" +
                        ButtonTypeConverter(standardButton.get_buttonType()) + "\n" +
                        ButtonTypeConverter(toggleButton.get_buttonType()) + "\n" +
                        ButtonTypeConverter(linkButton.get_buttonType()));
            }

            function ButtonTypeConverter(type)
            {
                switch (type)
                {
                    case Telerik.Web.UI.RadButtonType.StandardButton:
                        return "Standard Button"
                        break;
                    case Telerik.Web.UI.RadButtonType.ToggleButton:
                        return "Toggle Button"
                        break;
                    case Telerik.Web.UI.RadButtonType.LinkButton:
                        return "Link Button"
                }
            }

            function SetNavigateUrl(sender, args)
            {
                if (!Page_IsValid) return;
                var txtNavigateUrlValue = $get("txtNavigateUrl").value;
                linkButton.set_navigateUrl(txtNavigateUrlValue);
            }

            function OnClientClicking(sender, args)
            {
                if (sender.get_navigateUrl() && sender.get_buttonType() == Telerik.Web.UI.RadButtonType.LinkButton)
                {
                    var RadWindow = $find("<%= RadWindow1.ClientID %>");
                    RadWindow.setUrl(sender.get_navigateUrl());
                    RadWindow.set_title(sender.get_navigateUrl());
                    RadWindow.show();
                    args.set_cancel(true);
                }
            }

            var flag = true;
            function SetAutoPostBack()
            {
                flag = !flag;
                standardButton.set_autoPostBack(flag);
                toggleButton.set_autoPostBack(flag);
                linkButton.set_autoPostBack(flag);
                if (flag)
                {
                    alert("RadButtons will perform postback when clicked");
                }
                else alert("RadButtons will not perform postback");

            }

            function GetToggleType()
            {
                if (Telerik.Web.UI.ButtonToggleType.CheckBox == toggleButton.get_toggleType())
                {
                    alert("The type of the ToggleButton is checkbox");
                }
            }

            function CheckToggleButton()
            {
                toggleButton.set_checked(!toggleButton.get_checked());
            }
            //]]>
        </script>
        <div class="RadButtonWrapper">
            <div style="float: left;">
                <telerik:RadButton ID="RadButton1" runat="server" Text="Standard Button">
                </telerik:RadButton>
                <div style="padding: 5px">
                </div>
                <telerik:RadButton ID="RadButton2" runat="server" ButtonType="ToggleButton" ToggleType="CheckBox"
                    Text="Toggle Button (CheckBox)">
                </telerik:RadButton>
                <div style="padding: 5px">
                </div>
                <telerik:RadButton ID="RadButton3" runat="server" ButtonType="LinkButton" Text="Link Button"
                    OnClientClicking="OnClientClicking">
                </telerik:RadButton>
            </div>
        </div>
        <qsf:ConfiguratorPanel ID="ConfiguratorPanel1" runat="server" Title="Client-Side API Commands:"
            Expanded="true" Width="400px" Style="float: right;">
            <ul>
                <li>
                    <input type="text" id="txtSetButtonText" style="width: 100px;" value="Set Buttons Text" />
                    <button onclick="SetButtonsText(); return false;">
                        Set Buttons Text</button></li>
                <li>
                    <button onclick="GetButtonsText(); return false;">
                        Get Buttons Text</button></li>
                <li>
                    <button onclick="GetButtonsType(); return false;">
                        Get Buttons Type</button></li>
                <li>
                    <asp:TextBox ID="txtNavigateUrl" runat="server" Style="width: 150px; margin-bottom: 3px;"></asp:TextBox>
                    <span>Enter a URL, e.g. http://www.telerik.com</span>
    <asp:RegularExpressionValidator ForeColor="Red" Style="padding: 1px 0" ValidationExpression="http(s)?://([\w-]+\.)+[\w-]+(/[\w- ./?%&amp;=]*)?"
    runat="server" SetFocusOnError="true" ID="regNavaigateUrl" ControlToValidate="txtNavigateUrl"
    ValidationGroup="UrlVG" ErrorMessage="Valid URL should start with <strong>http://</strong>"></asp:RegularExpressionValidator>
                    <telerik:RadButton ID="btnSetNavigateURL" AutoPostBack="false" runat="server" OnClientClicked="SetNavigateUrl"
                        Text="Set Navigate URL (LinkButton only)" ValidationGroup="UrlVG">
                    </telerik:RadButton>
                </li>
                <li>
                    <input type="checkbox" checked="checked" onclick="SetAutoPostBack();" value="true" />Set
                    Auto PostBack </li>
                <li>
                    <button onclick="GetToggleType(); return false;">
                        Get Toggle Type (Toggle Button Only)</button></li>
                <li>
    <asp:CheckBox ID="cb1" runat="server" onclick="CheckToggleButton();" Text="Check / Uncheck
    Toggle Button" /></li>
            </ul>
            <telerik:RadWindow VisibleOnPageLoad="false" runat="server" Behaviors="Maximize,Close,Move"
                ID="RadWindow1" VisibleStatusbar="false" Width="700px" Modal="true" Height="500px" />
        </qsf:ConfiguratorPanel>
        <qsf:Footer runat="server" ID="Footer1" />
        </form>
    </body>
    </html>

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