Asp.net 为什么recaptcha.IsValid总是返回True_Asp.net_Captcha_Recaptcha

Asp.net 为什么recaptcha.IsValid总是返回True

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Asp.net 为什么recaptcha.IsValid总是返回True,asp.net,captcha,recaptcha,Asp.net,Captcha,Recaptcha,为什么recaptcha.IsValid总是返回True Protected Sub CreateUserWizard1_CreatingUser(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.LoginCancelEventArgs) Handles CreateUserWizard1.CreatingUser Dim Captcha As RecaptchaControl = CType(Create

为什么recaptcha.IsValid总是返回True

    Protected Sub CreateUserWizard1_CreatingUser(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.LoginCancelEventArgs) Handles CreateUserWizard1.CreatingUser
    Dim Captcha As RecaptchaControl = CType(CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("recaptcha1"), RecaptchaControl)
    If Not Captcha.IsValid Then
        e.Cancel = True
    End If
End Sub

在

Captcha.IsValid之前调用Captcha.Validate（）

    Protected Sub CreateUserWizard1_CreatingUser(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.LoginCancelEventArgs) Handles CreateUserWizard1.CreatingUser
    Dim Captcha As RecaptchaControl = CType(CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("recaptcha1"), RecaptchaControl)
    Captcha.Validate()
    If Not Captcha.IsValid Then
        e.Cancel = True
    End If
End Sub