nsmanagedobject - Save multiple attributes to same core data entity -

i first time user of core data , trying learn core data.

for start employee example 2 attributes. 1. name 2. salary

now done necessary things needed loading data db. values saved before.

but problem able save 1 attribute of employee table.for first time saved name of employee. when got success in that, try save name salary got [nsmanagedobject setsalary:]: unrecognized selector sent instance 0x7472d80 exception.

here code.

   - (ibaction)setbtntouched:(id)sender {        employee *newemp = [nsentitydescription                 insertnewobjectforentityforname:@"employee"                 inmanagedobjectcontext:context];      [newemp setname:self.textfieldname.text];      [emp addobject:newemp];  /* code added after success in saving employee name.*/     //[newemp setsalary:self.textfieldsal.text];     //[emp addobject:newemp]; */      bool issaved = [context save:nil];   nslog(@"is saved %d",issaved);  nslog(@"emp :%@",emp);  } 

i dont understand went wrong because both attributes of same entity.

please write thread.

edited: screen shot regards, paggyyy123

make sure nsmanagedobject subclass contains correct attribute name accessor.

// employee.m @dynamic salary 

also, note adding new employee array emp twice. these 2 identical once attributes complete.