User351619809 posted
am trying to use Google Recaptcha on on my web pages. I keep getting an error saying:
GoogleReCaptcha.GoogleReCaptcha)(System.Web.HttpRuntime.WebObjectActivator.GetService(typeof(GoogleReCaptcha.GoogleReCaptcha))));
Below is the screen shot:

Below is my aspx page code:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="TryAgain.WebForm1" %>
<%@ Register Assembly="GoogleReCaptcha" Namespace="GoogleReCaptcha" TagPrefix="cc1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<p>
<h1>Google ReCaptcha Form</h1>
<asp:TextBox ID="txt" runat="server"></asp:TextBox>
<cc1:GoogleReCaptcha ID="ctrlGoogleReCaptcha" runat="server" PublicKey="XXXX" PrivateKey="XXX" />
<asp:Panel ID="Panel1" runat="server">
</asp:Panel>
<asp:Label ID="lblStatus" runat="server" Text=""></asp:Label>
<asp:Button ID="btn" runat="server" Text="Submit" OnClick="btn_Click" />
</p>
</div>
</form>
</body>
</html>
Below is my aspx.cs file code:
protected void btn_Click(object sender, EventArgs e)
{
if (ctrlGoogleReCaptcha.Validate())
{
//submit form
lblStatus.Text = "Success";
}
else
{
lblStatus.Text = "Captcha Failed!! Please try again!!";
}
}
GoogleRecaptcha that I downloaded has properties like so:

I downloaded the GoogleRecaptcha from here:
https://www.codeproject.com/Tips/884193/Google-ReCaptcha-ASP-net-Control
I am using ASP.net version 4.7.2
Any help will be highly appreciated