Part 5- Difference between ViewBag and Viewdata and TempData | Peak and Keep

Overview:
In this video you can practically distinguish the ViewBag , ViewData and TempData .This question is very common in every interview so be prepared for this .
It is notable if any redirection occurs then viewbag and viewdata value gets null but tempData value get preserved if and only if tempData.Keep() method is being used.
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INTRODUCTION :
ViewData and ViewBag
Used to pass data from controller to corresponding view.
ViewData is a dictionary of objects that is derived from ViewDataDictionary class and is accessible using strings as keys.
ViewBag is a dynamic container.
ViewData requires typecasting for complex data type and check for null values to avoid error.
ViewBag doesn’t require typecasting for complex data type.
Ex : ViewBag.MyName=“Ashish” , ViewData[“MyName”]=“Ashish"
TempData:
TempData is also a dictionary object derived from TempDataDictionary class and stored in short lives session
It helps to maintain data when you move from one controller to other controller or from one action to other action
Ex : TempData[“MyName”]=“Ashish”
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[@monjurulislam5393]

why you code change off recording

[@mi5956]

simple and great examples. I was confused with other tutorials. thank you very much

[@manishverma3941]

Thanks

[@komalkushwaha1977]

Hi you haven't tell about the peak method..

[@shyamtiwary2578]

hi technotips, great video .. request you to add videos on mvc entity framework implementing crud..

[@aapkanigam]

+Shyam tiwary please watch part 15 onwards .. :)

[@shyamtiwary2578]

Thanks

[@trr5088]

Everything is working so far, except for the TempData on the TestController. It will not show the name. Instead it shows ["Employee.NameTD"] on the View TempData["Employee.NameTD"] = "John"; The View page works fine except for this glitch. Do you have a suggestion on the casue?

[@aapkanigam]

+TR Rooks (TRR) use @ symbol before tempdata on view

[@aapkanigam]

+TR Rooks (TRR) make sure if u r redirecting to other controller or method then use tempdata.keep () method in order to preserve its value

[@trr5088]

Ashish, Thanks for the pointer. I had not noticed the line in the Index view or the Second Page View. I had only written.... Your tempData value is ["EmployeeNameTD"] When I added the @TempData as shown below, it works as your demonstration. @TempData["EmployeeNameTD"]

[@bhaskarkholiya8125]

hi Ashish, please make a video on How to Set Admin LTE theme in ASP.NET MVC.

[@petermankge6921]

Great tutorials to learn MVC easily....Thank you!!!

[@annuverma936]

thumps up very good explanation.

[@tamilkumarang]

We have to add second page. Cshtml file? .. U forgot to mention that in this video..

[@Bhargavarigela]

how to add second page?

[@hatah01]

Do you have any tutorials on how to design a blog in MVC? I have been following the tutorials and would like to add a commenting system. Any pointers for me?

[@aapkanigam]

+Joshua Wakhata not yet but will add to my list

[@aravindkumar5129]

U didn't say about peek method

[@nayakdevi6880]

i want to know about keep and peek method

[@johnsongeorge5906]

Very Good Bro

[@narendarsingh4672]

great

[@reyaadelkomy8046]

Thanks

[@vito2320]

You are doing great job. I like your videos :)

[@aapkanigam]

+Vito23 thanks keep learning and sharing

[@navzme]

Thanks for awesome video

[@aapkanigam]

Thanks ..keep learning and sharing

[@mohamedmostafa3921]

thank you ashish

[@aapkanigam]

Keep learning and sharing