public FileResult GetValidCode()
{
var code = ValidCodeHelper.CreateValidateCode(6);
//Session[Keys.ValidCode] = code;
TempData[Keys.ValidCode] = code;
byte[] buffer = ValidCodeHelper.CreateValidateGraphic(code);//把验证码画到画布
return(File(buffer, "image/jpeg"));
}
//
// GET: /Search/
public ActionResult GetValidateCode()
{
ValidCodeHelper vCode = new ValidCodeHelper();
string code = vCode.CreateValidateCode(4);
Session["ValidateCode"] = code;
byte[] bytes = vCode.CreateValidateGraphic(code);
return(File(bytes, @"image/jpeg"));
}