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Form Integration

In this demo, you can see how to configure a basic OTP Input component within a Form.

  • DefaultCS.aspx
  • DefaultCS.aspx.cs
  • script.js
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DefaultCS.aspx.cs"  Inherits="OTPInput_FormIntegration_DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>

<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <script src="script.js"></script>
</head>

<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <div class="demo-container no-bg flex-center" runat="server">
        <div class="form-container">
            <div class="form-group">
                <label class="form-label" for="txtUsername">Username</label>
                <telerik:RadTextBox ID="txtUsername" runat="server" Width="100%" />
                <asp:RequiredFieldValidator ErrorMessage="Field 'Username' is Required!" ControlToValidate="txtUsername" runat="server" />
            </div>

            <div class="form-group">
                <label class="form-label" for="txtEmail">Email</label>
                <telerik:RadTextBox ID="txtEmail" runat="server" Width="100%" InputType="Email" />
                <asp:RequiredFieldValidator ErrorMessage="Field 'Email' is Required" ControlToValidate="txtEmail" runat="server" />
            </div>

            <div class="form-group">
                <label class="form-label" for="OTPInput1">Password</label>
                <telerik:RadOTPInput ID="OTPInput1" runat="server" FillMode="Outline" Type="Password">
                    <Items>
                        <telerik:OTPInputItem GroupLength="3" />
                        <telerik:OTPInputItem GroupLength="2" />
                        <telerik:OTPInputItem GroupLength="3" />
                    </Items>
                    <ClientEvents OnLoad="onLoad" />
                </telerik:RadOTPInput>
            </div>

            <telerik:RadButton runat="server" ID="RadButton1" Text="Submit" Primary="true" />
            <telerik:RadButton runat="server" ID="RadButton2" Text="Cancel" />
        </div>
    </div>

    <style>
        .form-container {
            background-color: #ffffff;
            border: 1px solid #ccc;
            border-radius: 8px;
            padding: 2rem;
            max-width: 400px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .form-container .RadButton {
            margin-right: 0.5rem;
            margin-top: 1rem;
        }
    </style>
    </form>
</body>
</html>

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