Return List " Cannot implicitly convert type ObjectResult to List "

Question

0.00/5 (No votes)

See more:

I'm using N-tier and Entity Framework for my project. I have been using Database First.

I have a problem with may project, I can't return List<>. below is my code :

C#

public List<BuyerMaster> GetDetailBuyerMaster(string idCust)
   {
       var query = _context.sp_BuyerMaster_GetDetailById(idCust);
       return query;
   }

Thanks all !

Posted 16-May-13 0:05am

khiemnguyen

Add a Solution

Comments

Pheonyx 16-May-13 6:11am

can you do query.ToList() ?

khiemnguyen 16-May-13 6:29am

I try query.ToList() but it still error => " cannot implicitly convert type List to List " :(

3 solutions

Solution 3

Thanks all. My code runs Okay !

Posted 16-May-13 17:00pm

khiemnguyen

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

vijay__p · Accepted Answer · 2013-05-16T00:30:00

Solution 1

When using store procedure in entity framework it returns

ObjectResult<ttype>

so you need to cast it your required type.
You can cast using Select operator as below

C#

return query.Select(x=> new BuyerMaster{
// Assign properties here 
Id = x.Id
}).ToList()

Posted 16-May-13 0:30am

vijay__p

Updated 16-May-13 0:31am

v3

Pheonyx · Accepted Answer · 2013-05-16T00:31:00

Solution 2

Have a read here, there are a couple of approaches that might do what you are after:

http://social.msdn.microsoft.com/Forums/en-US/adodotnetentityframework/thread/16e1aa09-3df7-40fa-baaf-b9bcc8c25d17[^]

Posted 16-May-13 0:31am

Pheonyx