Can I get some data in controllers from view use viewdata?

Question

Can I get some data in controllers from view use viewdata?

In view ,like

@{
    Layout = "_Layout";    
    ViewData["pid"] = "1";
}

In view , when submit a form , in controller ,like

public IActionResult do()
{
string pid=ViewData["pid"];//get "1"?
}

Answer 1

Hi @Alick Wang

ViewData only work for current request, I suggest you using TempData.TempData works during the current and subsequent request.

View:

@{
    Layout = "_Layout";
    TempData["pid"] = "1";
   
}

Controller:

public async Task<IActionResult> Do()
{
 
    string pid = TempData["pid"] as string;//get "1"
    //...
}

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Best regards,
Rena