MVC captcha
MVC captcha and MVC invisible captcha.
Ajax captcha validation. Easy and simple to use.
EXAMPLE:
HOW TO USE:
Download and add model (CaptchaModel.cs), controller(CaptchaController.cs) and partial(_Captcha.cshtml,_InvisibleCaptcha.cshtml) view to your project.
Inside form add partial views.
@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
<div class="editor-label">
@Html.LabelFor(model => model.Text)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Text)
@Html.ValidationMessageFor(model => model.Text)
</div>
@Html.Partial("_Captcha", new Uco.Models.Captcha())
@Html.Partial("_InvisibleCaptcha", new Uco.Models.InvisibleCaptcha())
<p>
<input type="submit" value="Send" />
</p>
}
In controller check captcha:
[HttpPost]
public ActionResult Index(string CaptchaValue, string InvisibleCaptchaValue)
{
bool cv = CaptchaController.IsValidCaptchaValue(CaptchaValue.ToUpper());
bool icv = InvisibleCaptchaValue == "";
if (!cv || !icv)
{
ModelState.AddModelError(string.Empty, "Captcha error.");
return View();
}
if (ModelState.IsValid)
{
// do work
return View();
}
else return View();
}