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cast the value returned from User.Identity.GetUserId() to make it a GUID

Mark Devid 3574 14-Nov-2014

I created the following class:

public class Config
{
    public Guid UserId { get; set; }
    public string AdminJSON { get; set; }
    public string UserJSON { get; set; }
}

When I query the data I am using:

Config config = await db.Configs.FindAsync(User.Identity.GetUserId());

Is this the correct way to do the find. It seems that User.Identity.GetUserId() returns a string. Should I be casting this to return a GUID.

I also have another problem with this:

UserId = User.Identity.GetUserId()  

This also fails. I tried to do a cast by adding (Guid) before the User.Identity.GetUserId() however this gives a message saying Error 1 Cannot convert type 'string' to 'System.Guid'

It errors out as it cannot

asp.net c# 
Updated on 14-Nov-2014
Mark Devid

Mark Devid

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1 Answers

Anonymous User

Anonymous User

14-Nov-2014

You need to use Guid.Parse(User.Identity.GetUserId()) or better fail proof method

Guid userId;
bool worked=Guid.TryParse(User.Identity.GetUserId(),out userId);
if(worked) 
{
    //go ahead
}
else 
{
    throw new Exception("Invalid
userid"); 
}

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