Solved

Updating Boolean field in MSSQL using LINQ and Entity Framework

Posted on 2011-02-28
6
537 Views
Last Modified: 2012-05-11
Hello All,

I'm having a really frustrating time updating any fields in my database that are of type Boolean!!!

For instance I have:
ClassManagementEntities db = new ClassManagementEntities();
UserInformation user = new UserInformation();
user.Email = model.Email;
user.Roles = "Student";
user.Username = model.UserName;
user.UserInformationId = (Guid)memUser.ProviderUserKey;
user.IsApproved = true;
db.UserInformation.Add(user);
db.SaveChanges();

Open in new window


I then check in SQL Server Mangaement Studio and the value for IsApproved is set to 0. So frustrating. I've run out of ideas. I feel like this should be a simple task... does the type need to be bool vs Boolean?
0
Comment
Question by:LaBowski
  • 4
6 Comments
 
LVL 22

Accepted Solution

by:
Snarf0001 earned 500 total points
ID: 35004171
No, it should be just as easy as you figured.  I have boolean columns (of tyep Boolean) in virtually every table, and it's a simple to update as any other, and just as you have.

Any chance you have triggers or code somewhere else in your model that might be resetting the value?
Is the property mapped properly?
0
 

Author Comment

by:LaBowski
ID: 35004220
no triggers I don't believe. I don't even know how to set tiggers :\

I'm using the entity framework (CTP 5). I define the UserInformation class as:
public class UserInformation
    {
        public string Username { get; set; }
        public Boolean IsApproved { get; set; }
        public string Email { get; set; }
        public Guid UserInformationId { get; set; }
        public string Roles { get; set; }
        public string SecretQuestion { get; set; }
        public string SecretAnswer { get; set; }
        public string ReturnUrl { get; set; }
        public int SemesterID { get; set; }
        public virtual Grade Grade { get; set; }
        public virtual Absent Absent { get; set; }
    }

Open in new window


I really appreciate your help!
0
 
LVL 40

Expert Comment

by:Sharath
ID: 35004265
instead of assigning value true, did you check with 1?
ClassManagementEntities db = new ClassManagementEntities();
UserInformation user = new UserInformation();
user.Email = model.Email;
user.Roles = "Student";
user.Username = model.UserName;
user.UserInformationId = (Guid)memUser.ProviderUserKey;
user.IsApproved = 1;
db.UserInformation.Add(user);
db.SaveChanges();

Open in new window

0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 

Author Comment

by:LaBowski
ID: 35004292
Weird... so now it's working properly... weird... Problem now is that the public string[] Roles { get; set;} is not being added to the database... so I have:
public class UserInformation
    {
        public string Username { get; set; }
        public Boolean IsApproved { get; set; }
        public string Email { get; set; }
        public Guid UserInformationId { get; set; }
        public string[] Roles { get; set; }
        public string SecretQuestion { get; set; }
        public string SecretAnswer { get; set; }
        public string ReturnUrl { get; set; }
        public int SemesterID { get; set; }
        public virtual Grade Grade { get; set; }
        public virtual Absent Absent { get; set; }
    }

Open in new window


I think cause it referencing Roles as Web.Security.Roles... which is unfortunate because I want to query users who have the role student from this table... do I need a public virtual Roles Roles get set or???
0
 

Author Comment

by:LaBowski
ID: 35004311
To Clarify in:

UserInformation user = new UserInformation();
                    user.Email = model.Email;
                    user.Roles = new string[] { "Student" };
                    user.Username = model.UserName;
                    user.UserInformationId = (Guid)memUser.ProviderUserKey;
                    user.IsApproved = true;

                    ProfileInformation profile = ProfileInformation.GetProfile(model.UserName);
                    profile.SemesterID = currentSemesterID;
                    user.SemesterID = Int32.Parse(currentSemesterID);
                    db.UserInformation.Add(user);
                    db.SaveChanges();

Open in new window


The line:
user.Roles = new string[] { "Student" };

Open in new window


Is not represented in my database.... as in it's not being save AND it's not even a column of the Userinformation Table...
0
 

Author Comment

by:LaBowski
ID: 35004330
I guess since I have the boolean part working I could create a field isStudent and set it to true if they're a student... but then I'll have to update another method when the user is set to faculty or admin isStudent is set to false... which is doable, but is it best practice... I don't think so... sorry just thinking out loud...
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
This videos aims to give the viewer a basic demonstration of how a user can query current session information by using the SYS_CONTEXT function
Viewers will learn how to use the SELECT statement in SQL and will be exposed to the many uses the SELECT statement has.

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

25 Experts available now in Live!

Get 1:1 Help Now