private void CreateValidation() { VerifyCodeHelper helper = new VerifyCodeHelper(); pictureBox2.Image = helper.CreateImage(); lblCode.Text = helper.CreateRandomCode(); }
public ActionResult VCode() { //首先实例化验证码的类 VerifyCodeHelper validateCode = new VerifyCodeHelper(); //生成验证码指定的长度 string code = validateCode.GetRandomString(4); Session["VCode"] = code; //创建验证码的图片 byte[] bytes = validateCode.CreateImage(code); //最后将验证码返回 return(File(bytes, @"image/jpeg")); }