How to add a new model property dynamically in mvc4?

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1.00/5 (1 vote)

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Dear Friends,

My Class Model

C#

Public Class Channel
{
   public int ChannelId {get;set;}
   public string ChannelName {getlset;}
   public string ChannelCode {get;set;}
}

While create method run, I silent property named ChannelId by doing

ModelState.Remove("ChannelId");

Somewhare I want to add again ChannelId or any property what should I do?

Even, I know. . this command.

ModelState.Add(...) but not working. .

Please. . Guide me.

Posted 5-Aug-14 1:03am

Manoj B. Kalla

Updated 5-Aug-14 1:26am

Herman<T>.Instance

v2

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2 solutions

Solution 1

You cannot modify the model dynamically since this would also require modifying the underlying data store, possibly destroying information in the process.

There really isn't a good reason to do this so what are you really trying to do with this?

Posted 5-Aug-14 2:29am

Dave Kreskowiak

Comments

Manoj B. Kalla 5-Aug-14 8:41am

Dear Dave,

I want to add a new property like

public string ChannelArea {get;set;}

and want used in EDIT view only.

For this I want to create a new model again. But I want to add new property runtime. For this what should I do.

Dave Kreskowiak 5-Aug-14 12:43pm

I think you REALLY need to pickup a book on MVC and work through it.

You NEVER modify your Model classes just to pass them to the View. You create ViewModel classes that take the information from the Model classes and any additional data the View may need to display/edit the data.

Manoj B. Kalla 6-Aug-14 3:25am

Dear Dave Kreskowiak sir,

I searched and got my answer.

Thanks for your answers.

http://stackoverflow.com/questions/14447297/asp-net-mvc-4-how-to-access-modify-the-view-model-object-and-change-view-and-a

Dave Kreskowiak 6-Aug-14 8:25am

Yeah, about that. Either you've not explained your requirement in enough detail or you're going about this the hard way and will find that it is indeed not the solution you're looking for.

Good luck.

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Manoj B. Kalla · Accepted Answer · 2014-08-05T21:28:00

Solution 2

Dear Dave Kreskowiak sir,

I searched and got my answer.

Thanks for your answers.

Answer as per my requirement

Posted 5-Aug-14 21:28pm

Manoj B. Kalla