This Form of method call only allowed for class methods error

Question

I keep getting this error. On FGetZoneData I have:

var
   SelectedDept: String;

implementation

procedure TFGetZoneDept.GetClick1(Sender: TObje         


        

Answer 1

You're calling the method on a class (I assume TfDB is a class name) not on an instance. Only class methods can be called that way. What you have to do is to create an instance, then call the method on it:

var DB: TfDB;
begin
  DB := TfDB.Create(); // create an instance
  adept := DB.GetDeptDBName(SelectedDept); // call the method

See the E2076 This form of method call only allowed for class methods topic in docwiki.