Client-side Programming Overview

Updated on Oct 27, 2025

Overview of the Client-side APIs you can use to configure the Telerik WebForms SpeechToTextButton Control.

The Client-side APIs only allow making changes to a rendered SpeechToTextButton element. As an ASP.NET WebForms Component, it can only be created on the server, see Server-side Programming Overview

Get Client-side reference

Example of getting Client-side reference to the Telerik.Web.UI.RadSpeechToTextButton object at Page Load.

ASP.NET

<telerik:RadSpeechToTextButton runat="server" ID="RadSpeechToTextButton1" />

JavaScript

function pageLoadHandler(sender, args) {
    let speechToTextButton = $find('<%= RadSpeechToTextButton1.ClientID %>'); // Telerik.Web.UI.RadSpeechToTextButton
    let kendoSpeechToTextButton = speechToTextButton.get_kendoWidget(); // kendo.ui.SpeechToTextButton
}

Sys.Application.add_load(pageLoadHandler);

For more details about referencing Telerik Controls on the Client-side, you can check out the Getting Client-Side References article.

Telerik WebForms SpeechToTextButton API

The WebForms SpeechToTextButton exposes a few Client-side properties and enums that can be used to change the appearance on the client.

For a list of available Properties and Enums, you can refer to the following articles:

• Properties
• Enums

Example of changing the appearance on Page Load

ASP.NET

<telerik:RadSpeechToTextButton runat="server" ID="RadSpeechToTextButton1" />

JavaScript

function pageLoadHandler(sender, args) {
    let speechToTextButton = $find('<%= RadSpeechToTextButton1.ClientID %>');

    let newSize = Telerik.Web.UI.RadSpeechToTextButtonSize.Large;
    let newFillMode = Telerik.Web.UI.RadSpeechToTextButtonFillMode.Outline;
    let newRounded = Telerik.Web.UI.RadSpeechToTextButtonRounded.Full;
    let newThemeColor = Telerik.Web.UI.RadSpeechToTextButtonThemeColor.Success;
    let newIcon = "headset";
    let newStopIcon = "pause-sm";

    speechToTextButton.set_size(newSize);
    speechToTextButton.set_fillMode(newFillMode);
    speechToTextButton.set_rounded(newRounded);
    speechToTextButton.set_themeColor(newThemeColor);
    speechToTextButton.set_icon(newIcon);
    speechToTextButton.set_stopIcon(newStopIcon);
}

Sys.Application.add_load(pageLoadHandler);

Tips & Tricks

You can create a JavaScript object containing all the Enums in one place for easier access.

Example

ASP.NET

<telerik:RadSpeechToTextButton runat="server" ID="RadSpeechToTextButton1" />

JavaScript

let SpeechToTextInputEnums = (function () {
    try {
        return {
            FillMode: Telerik.Web.UI.RadSpeechToTextButtonFillMode,
            Rounded: Telerik.Web.UI.RadSpeechToTextButtonRounded,
            Size: Telerik.Web.UI.RadSpeechToTextButtonSize,
            ThemeColor: Telerik.Web.UI.RadSpeechToTextButtonThemeColor
        };
    } catch (e) {
        // Oops, Telerik.Web.UI is not defined
    }
})();

function pageLoadHandler(sender, args) {
    let speechToTextButton = $find('<%= RadSpeechToTextButton1.ClientID %>');

    speechToTextButton.set_fillMode(SpeechToTextInputEnums.FillMode.Outline);
    speechToTextButton.set_rounded(SpeechToTextInputEnums.Rounded.Full);
    speechToTextButton.set_size(SpeechToTextInputEnums.Size.Large);
    speechToTextButton.set_themeColor(SpeechToTextInputEnums.ThemeColor.Success);
}

Sys.Application.add_load(pageLoadHandler);

Next Steps

• Properties
• Events
• Enums