Lotus Notes Application design & programming. By Ajith Thulaseedharan Lotus Notes developer

Transcription

1 Lotus Notes Application design & programming By Ajith Thulaseedharan Lotus Notes developer

2 A Notes application Is a.nsf(notes Storage Facility) database Is a structured flat file Contains notes data & design & acl Data is accessed using APIs in lotusscript / formula / java / javascript / C or C++ Can be used for sharing/storing information workflow Tracking Domino Designer is used for application development

3 DOMINO DESIGNER

4 Templates To create or modify an application File-Application-New/Open Template is the blueprint of your application select Blank if you want to start from scratch select an existing template if it fits your needs else, copy an existing template and modify it as you require Templates are.ntf files, separate from applications. Template name is set in Application properties need to Refresh design of application whenever you modify its template

5 Design Elements Display data/ Gather user input Forms Subforms Fields Pages List data Automate tasks Actions Agents Views Folders Organize data Frameset Outlines/Navigators Design Synopsis - a report of the design elements and their code

6 Few points to note Form vs document Alias of design elements - Input Form IF Design Properties eg: Form Automatically Refresh Fields Autosave Add header to form Design Preview Use Image resources to add graphics Use Tables to format data instead of tabs Computed fields - Computed, Computed for display, Computed when composed

7 Text Rich Text Number Date/Time Names Authors/Readers Time Zone Rich Text Lite Checkbox Radio Button Dialog List Combobox Listbox Password Formula Color Field Types

8 Formula language Can be used in Editable and computed fields View columns View selection Buttons Actions Agents Programmatic tables Window titles Contains Variables, Constants,

9 Formula Examples Assignment A. operator FirstName := Jas LastName := Mine REM prefix for single line + B. Operators Assignment := Concatenation + Arithmetic as usual Comparison =,!=, <, > Logical &,,! C. Reserved Keywords FIELD, SELECT, REM, DEFAULT, ENVIRONMENT D. Separators : separate items in a list ; end statements, between arguments of function

10 Formula Examples(...continued) E. A time/date constant [07/27/2011] > 1000; over limit ; abcdefgh abcdefgh ; gives G. Most - for displaying messagebox to user and for debugging H. Creating or retrieving a field from current document

11 A brief note on Agents Automate tasks Has a trigger, documents to act on, action to perform Code action in Simple actions, Formula, Lotusscript, Java Agent can be run from Action menu, Or invoke from the program in a button or other code, Or be event triggered, Or be scheduled To run an agent MacroName ) Use to modify/add fields, move documents, send mails etc. Eg: SELECT DepartmentName = Personnel ; FIELD DepartmentName := Human Resources

12 Lotusscript basics Superset of BASIC (similar to VB) Examples of actions Lotusscript can perform Create/modify/delete documents File I/O on non-nsf files Send mails DataTypes Scalar Variables - Integer, Long, Single(like float in C), Double, Currency, String Variants Constants Arrays Lists User Defined Types User Defined Classes

13 Lotusscript basics Examples of variable declaration Dim I% as integer, J% as integer, K$ as String Dim v ---> is of default type Variant STATIC x ---> used in a procedure, to retain value between calls Allows implicit declaration, but to force variables to be declared before use, add in the Declarations section Option Declare or Option Explicit Casting using CInt, CLng, Cdbl, CSng, CStr, Cvar str$= 657 i%=cint(str$) Module all script associated with a design element There can be functions and subroutines within a module Function Function, End Function Subroutine Sub, End Sub For eg:, a Form has predefined subroutines like PostOpen, QuerySave, PostRecalc

14 Lotusscript basics Relational operators =, <>, >, <,>=, <= String concatenation use & Comments single quote or REM for single line comment ' for multi-line comments %REM,%ENDREM InputBox to gather user input %Include directive(for LSS files available in program directory) vs Use statement(for script libraries available in the notes application) To use constants already defined, include lsconst.lss lsxbeer.lss lsxuierr.lss lserr.lss

15 Lotusscript basics Array declaration Dim myarray(5) as integer Dim mytwodimensionarray(5,5) as string REDIM PRESERVE myarray(10) Lists DIM mylist LIST as string Mylist( Founder ) = Mitch Kapor Conditional statements If End If If Else If ElseIf Select Case

16 Lotusscript basics Eg: Select Case (x Mod 2) Case 1: Print "x is an odd value" Case 0: Print "x is an even value" End Select Loops For...Next Forall End Forall Do Loop While Wend Eg: For x = 1 to 5 STEP 1 Print x Next x Working with LotusScript classes

17 Debugging Lotusscript Using MsgBox, Print Using LotusScript debugger

18 So thats it.. We learned to start with Notes application development and use Formula and Lotusscript languages for programming