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TempData vs ViewData in ASP.NET MVC - ViewData

  • Same request only
  • Lost on redirect
  • Best for simple UI values
  • Example: ViewData["Title"] = "Dashboard";
  • Use ViewData for page titles & dropdowns

TempData vs ViewData in ASP.NET MVC - TempData

  • Persists across redirects
  • Session-based
  • Perfect for success/error messages
  • Example: TempData["Success"] = "Saved successfully!";
  • Use TempData for redirect messages (PRG pattern)

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