add elements to object array

Question

This must be really simple but just not getting my syntax right here  let s say we have  classes like two below   class Student       Subject   subjects     class Subject       string Name      string referenceBook      Here is my code   Student univStudent   new Student      Now  I want to add subjects here but not able to do something like  univStudent subjects add new Subject           How do i add items to this object array

User · Accepted Answer

You can try  Subject   subjects   new Subject 2   subjects 0    new Subject        subjects 1    new Subject          alternatively you can use List  List lt Subject gt  subjects   new List lt Subject gt     subjects add new Subject         subjects add new Subject

User · Answer

You can use class System Array for add new element   Array Resize ref objArray  objArray Length   1   objArray objArray Length - 1    new Someobject

User · Answer

I know this is old  but came across it looking for a simpler way  and this is how i do it  just create a new list of the same object and add it to the one you want to use e g    Subject   subjectsList    new Subject1        new Subject2        new Subject3         univStudent subjects   subjectsList

User · Answer

If you can  use a List lt Subject gt  instead of Subject      this will let you do Student Subject Add new Subject      If that is not possible  you ll have to resize your array    look at Array Resize   at http   msdn microsoft com en-us library bb348051 aspx

User · Answer

You can t  However  you can replace the array with a new one which contains the extra element   But it is easier and gives better performance to use an List lt T gt   uses interface IList  for this  List lt T gt  does not resize the array every time you add an item - instead it doubles it when needed   Try   class Student       IList lt Subject gt  subjects   new List lt Subject gt        class Subject       string Name      string referenceBook      Now you can say   someStudent subjects Add new Subject

[c#] add elements to object array

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