asp.net mvc keep object alive, information

by

Confusion

but when i refresh, everything messes up, it says that the loginModel
is like null

Answer

This is due to the fact that you have read the TempData key and Once it is read, data will be lost for that particular key.

var Value = TempData["keyName"] //Once read, data will be lost

Question

how can i like keep track of the current login users

Answer

So to persist the data even after the data is read you can Alive it like below

var Value = TempData["keyName"];
TempData.Keep();                 //Data will not be lost for all Keys
TempData.Keep("keyName");        //Data will not be lost for this Key

TempData works in new Tabs/Windows also, like Session variable does.

You could use Session Variable also, Only major problem is that Session Variable are very heavy comparing with TempData. Finally you are able to keep the data across Controllers/Area also.

Hope this post will help you alot.

More Related Contents:

  1. Can we pass model as a parameter in RedirectToAction?
  2. Is there any good reason to use FormCollection instead of ViewModel?
  3. Razor actionlink autogenerating ?length=7 in URL?
  4. How do I create a MVC Razor template for DisplayFor()
  5. MVC 4 how to validate a non-US date with client validation?
  6. Cascading drop-downs in MVC 3 Razor view
  7. MVC4 DataType.Date EditorFor won’t display date value in Chrome, fine in Internet Explorer
  8. ASP.NET MVC Ajax Error handling
  9. Passing data between different controller action methods
  10. Adding another “Pet” to a Model Form
  11. Handling session timeout in ajax calls
  12. How do you share scripts among multiple projects in one solution?
  13. Why is Model Binding not working in my POST action method?
  14. Razor View throwing “The name ‘model’ does not exist in the current context”
  15. Display DateTime value in dd/mm/yyyy format in Asp.NET MVC
  16. HTML.ActionLink vs Url.Action in ASP.NET Razor
  17. ASP.NET MVC 4 intercept all incoming requests
  18. How can I pass parameters to a partial view in mvc 4
  19. ASP.NET MVC framework 4.5 CSS bundle does not work on the hosting
  20. pass enum to html.radiobuttonfor MVC3
  21. MVC4 Scaffolding Add Controller gives error “Unable to retrieve metadata…”
  22. MVC 3 file upload and model binding
  23. ASP.net MVC – Display Template for a collection
  24. Implementing “Remember Me” Feature in ASP.NET MVC
  25. How to create two footer rows in jqgrid
  26. MVC role-based routing
  27. Razor Nested WebGrid
  28. Steve Sanderson’s BeginCollectionItem helper won’t bind correctly
  29. MVC3 Validation – Require One From Group
  30. Include all files in a folder in a single bundle

Leave a Comment