public void OnGet()
{
var student = JsonConvert.DeserializeObject <Models.Student>(
User.Claims.First(claim => claim.Type == "Information").Value);
var kuasAp = new Services.KUASAPService();
// DropDownList items
DropDownList = new List <SelectListItem>();
foreach (string[] receipt in kuasAp.GetRecepits(student: student))
{
DropDownList.Add(new SelectListItem()
{
Text = receipt[0],
Value = $"{ receipt[0] },{ receipt[1] }"
});
}
if (DropDownList.Count <= 0)
{
ModelState.AddModelError("Warning", "目前無任何可檢視的繳費單收據");
}
else
{
if (string.IsNullOrEmpty(ReceiptParams))
{
DropDownList.Insert(0, new SelectListItem()
{
Text = "--- 請選擇繳費單收據 ---",
Value = "",
Disabled = true,
Selected = true
});
}
else
{
// Download first item receipt bytes
List <string> urlParams = ReceiptParams.Split(',').Skip(1).ToList();
MemoryStream stream = kuasAp.DownloadRecepit(student: student, urlParams: urlParams);
if (stream == null)
{
ModelState.AddModelError("Error", "檔案不存在（逾期）或下載失敗");
}
else
{
FileUrl = stream.ToArray().SaveToFile(
filename: $"{ student.Username }_{ DateTime.Now.ToString("HHmmss") }_{ ReceiptParams.Split(',').First() }.pdf",
saveDir: @"files/",
trueDir: $@"{ hostingEnvironment.WebRootPath }\",
deleteKey: student.Username);
if (string.IsNullOrEmpty(FileUrl))
{
ModelState.AddModelError("Error", "檔案不存在（逾期）或下載失敗");
}
else
{
FileUrl = $"{ Request.Scheme }://{ Request.Host }/{ FileUrl }";
}
}
}
}
}
