I have a table in which I set primary key as combination of three keys like Statudet_log(ID,STudent_ID,Course_ID,Course_Status)
STudent_ID,Course_ID,Course_Status all made as composite key (primary key) Now I want to update course _Status column only using entity framework when I am trying to udpate it I get this error .
"The property 'Course_Status' is a part of object key information and cannot be modified.I have a condition to make the primary key as unique and with these three columns that is mandatory give solution according to the situation as present I would not like to make ID as primary key and make the rest of the columns as unique.