Get the StudentId Of logged in student

Posted by Jopito under ASP.NET on 12/19/2013 | Points: 10 | Views : 1562 | Status : [Member] | Replies : 7

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In my application,to add a new student i have to pass the StudentId of currently logged in Student who is in roles of Students.When i provide the StudentId as query string in my browser,it adds the new student but the problem is when i have to get that StudentId from trhe students Table,the Student Id is not returned back.I have used debugger and i can see the name of the logged user but the id is not returned

Have used this code here but it returns null results.

MembershipUser student = Membership.GetUser(Page.User.Identity.Name);
int StudentId = ManageStudents.GeStudentId((Guid)user.ProviderUserKey);

Here is the Method
public int GetStudent(Guid userId)
{

try
{
return db.Students.FirstOrDefault(x => x.UserId == userId).StudentId;

}
catch (Exception)
{

throw;
}
}

This returns studentId as 0..Someone who can help me solve this?

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Posted by: Bandi on: 12/19/2013 [Member] [MVP] Platinum | Points: 25

0	Hi, Here you are calling GeStudentId() method int StudentId = ManageStudents.GeStudentId((Guid)user.ProviderUserKey); But you have shared the functionality of method GetStudent() Try this ? int StudentId = ManageStudents.GeStudent((Guid)user.ProviderUserKey); Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Jopito, if this helps please login to Mark As Answer. \| Alert Moderator

Hi,
Here you are calling GeStudentId() method

int StudentId = ManageStudents.GeStudentId((Guid)user.ProviderUserKey);

But you have shared the functionality of method GetStudent()

Try this ?
int StudentId = ManageStudents.GeStudent((Guid)user.ProviderUserKey);

Mark This Response as Answer
--
Chandu
http://www.dotnetfunda.com/images/dnfmvp.gif

Jopito, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Jopito on: 12/19/2013 [Member] Starter | Points: 25

0	Am getting the error Object reference not set to an instance of an object. int StudentId = ManageStudents.GeStudentId((Guid)user.ProviderUserKey); public int GetStudentId(Guid userId) { try { return db.Students.FirstOrDefault(x => x.UserId == userId).StudentId; } catch (Exception) { throw; } } Mark as answer if satisfied Jopito, if this helps please login to Mark As Answer. \| Alert Moderator

Am getting the error Object reference not set to an instance of an object.
int StudentId = ManageStudents.GeStudentId((Guid)user.ProviderUserKey);

public int GetStudentId(Guid userId)
{

try
{
return db.Students.FirstOrDefault(x => x.UserId == userId).StudentId;

}
catch (Exception)
{

throw;
}
}

Mark as answer if satisfied

Jopito, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: vishalneeraj-24503 on: 12/19/2013 [Member] [MVP] Platinum | Points: 25

0	Why did you pass GUID ti type cast in your code int StudentId = ManageStudents.GeStudentId((Guid)user.ProviderUserKey); Instead of Guid,just pass string AS int StudentId = ManageStudents.GeStudentId((string)user.ProviderUserKey); Jopito, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Bandi on: 12/19/2013 [Member] [MVP] Platinum | Points: 25

0	Are you getting value into user.ProviderUserKey ? Debug the code for the values of user.ProviderUserKey Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Jopito, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Bandi on: 12/19/2013 [Member] [MVP] Platinum | Points: 25

0	Refer this link http://stackoverflow.com/questions/10359108/asp-net-mvc-3-error-object-reference-not-set-to-an-instance-of-an-object Similar kind of error Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Jopito, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Jopito on: 12/19/2013 [Member] Starter | Points: 25

0	Yeah i can get the value but its different from what i think it should be, by using the method below i can get the identity but the problem is when i av to pass the studentId of logged in user MembershipUser user = Membership.GetUser(Page.User.Identity.Name);,This shows the identity of logged in user but cant pass the id Mark as answer if satisfied Jopito, if this helps please login to Mark As Answer. \| Alert Moderator

Yeah i can get the value but its different from what i think it should be, by using the method below i can get the identity but the problem is when i av to pass the studentId of logged in user
MembershipUser user = Membership.GetUser(Page.User.Identity.Name);,This shows the identity of logged in user but cant pass the id

Mark as answer if satisfied

Jopito, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Bandi on: 12/19/2013 [Member] [MVP] Platinum | Points: 25

0	Can you share the GetUser() functionality? Mark This Response as Answer -- Chandu http://www.dotnetfunda.com/images/dnfmvp.gif Jopito, if this helps please login to Mark As Answer. \| Alert Moderator

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