OMNIS 7 3 SERIAL CODE

Everything worked fine until the table class needed the value of a task variable.

OMNIS 7 3 SERIAL CODE

I discovered this when in a code class method I defined a list variable from a table class using $definefromsqlclass and then called a method in the table class. There are several problems you will run into with code classes:

I was told the original design of Omnis Studio did not include code classes. (There is a difference.) Omnis Studio will admit to you they only included code classes to make it easier for converting from Classis to Studio. The statement he made proved true, 'Anything you can do with a code class, you can do better with an object class.'Ĭode classes are a slippery slope that draws you away from object-oriented programming, and back into Omnis Classic style coding. Six months later at my first Omnis Conference, Geir Fjaerli convinced me to use object classes. When I started learning Omnis Studio I tried object classes and said to myself, 'This is too hard, Code Classes are much easier to work with and call, I'm sticking with code classes'. Here's a word of advice about code class. To save the font size for the IDE window, right-click on the window and select Save Window Setup. If you close and reopen the IDE window, the font size will revert to the original size. The changed font size will only be temporary. ( STRG+† to increase size - German keyboard layout) ( STRG+* to increase size - German keyboard layout) To change the font size of the code list, methods treelist, Property Manager, Catalog, etc. This can be especially helpful if you are doing a presentation. Omnis Studio allows you to change the font sizes in most of the IDE (Interactive Developer Environment) windows. You should be using a public method of a class instance. this style of code is something the object-oriented programming police might pull you over for. I'm not sure why you would need to do this. wWinClassName.MethodName (pParam1,pParam2) The Do code method is not limited to Code Classes it can be pointed to the class method of any type of class.ĭo code method. The trick for doing this is to use the Do code method command. You might run into a situation where you want to call a class method without first creating an instance of the class.

You can put the expression in an If calculation since it evaluates to a numeric value. Check if a certain name is in the list.ĭo ListVar.$search($ref.FirstName='Dawid',1,0,0,0) Returns LineNum You can put the expression in an If calculation since it evaluates to true or false. Use not(FlagOK) to test for FlagOK=kFalseĭo FileOps.$doesfileexist(Path) Returns bFileExists Using FlagOK is the same as FlagOK=kTrue Using not($ref.$selected) to count the unselected lines.ĭo ListVar.$sendall($ref.value.$assign(10),not($ref.$selected)) Using $ref.$selected is shorter and is the same as using $ref.$selected=kTrueĭo ListVar.$sendall(LineCount.$assign(LineCount+1),$ref.$selected) Calculate the number of selected lines.ĭo ListVar.$sendall(LineCount.$assign(LineCount+1),$ref.$selected=kTrue) Here are some code examples to clarify this. There is no need to compare the expression value to kTrue or kFalse for any expression in Omnis Studio which returns true or false. This section covers miscellaneous topics relating to Omnis Studio.

Omnis 7 3 serial