Character Mode Cookbook
From DataFlex Wiki
Keys and commands
on_key KCLEAR : F5 on_key KCANCEL Send Cancel : Esc on_key KENTER : Enter on_key KSAVE_RECORD Send Do_Report : F2
Promt commands df32 dfcomp ex.src -pfv1 p=precompile dfcomp ex.src -fv1 fv1 creates prn-file (check errors) dfrun ex dfruncon ex with mouse support
Declaration
Properties and variables
property integer piCount public 0 set piCount To (piCount(current_object)+1)
Move
local integer liNumber move 0 To liNumber
Move (key+1) to key key = key++ //Dont forget to use paratheses (a+(b*c))<>a+b*c
Set/Get
Set value of (oPop(current_object)) item 0 to sVar // item[0] = sVar Get Value item 0 to sVar // sVar = item[0]
Be aware of the difference
Set A of object to B A=B Get A of object to B B=A Move A to B You can only use Get and Set on properties
Functions and Procedures
get myFunc of (oObj(current_object)) "tmp" to sAnswer // sAnswer = oObj->myFunc("tmp")
--------------
SET
value of OBJ ITEM to VAL
location X Y [ABSOLUTE/RELATIVE]
focus_mode to POINTER_ONLY
--------------
Procedure MyProcedure
End_Procedure
Send MyProcedure ------------------ Procedure DisplayResult String lsValue1 String lsValue2 String lsValue3 set value of (oOutput(self)) item 0 to lsValue1 set value of (oOutput(self)) item 1 to lsValue2 set value of (oOutput(self)) item 2 to lsValue3 end_procedure send DisplayResult lsValue1 "" "" -------------- Procedure_Section // used in reports to handle paging in a smarter way --------------
Function MyFunction integer i returns Integer End_Function get MyFunction(self) as iRet -------------- function myFunc string test returns string local string lsRval move test to lsRval function_return lsRval end_function
get myFunc of (oObj(current_object)) "tmp string" to sAnswer
Start "windows/console"
start_ui // starts a new console ui_accept // has a return value activate_scope // opens a new "window"
Content layout
-------------- /Answer.hdr +--------------------+ /Answer.dat ¦ Answer:_________ ¦ +--------------------+ /* register_object oAnswer Object oAnswer is a Client Answer.hdr Set location 7 30 ABSOLUTE On_Key kcancel Send cancel
Object oAnswData is a Form Answer.dat
Set location 1 0 RELATIVE
Set focus_mode to POINTER_ONLY
item_list
On_Item "" Send none
end_item_list
End_Object
Procedure OpenAnswerForm string sValue local Integer iRval Set value of (oAnswData(current_object)) item 0 to sValue ui_accept current_object to iRval End_Procedure
End_Object
Send OpenAnswerForm to (oAnswer(current_object)) "test string" --------------
Reports
/oReportView1.SectionName __________________________________________________________________________ /oReportView1.body ____________________ ______________________ /*
//Activate_View Activate_Report1 for oReportView Object oReportView1 is a Report_View NO_IMAGE
Object oMainReport is a seq.Report NO_IMAGE
Set Main_File to customer.file_number
//set Ordering to 2 // Order by name
Set Report_Title to "Report 1 - Show position of sections"
set Page_End to 18 // Page length set to screen length
Procedure _PrintSectionName String lsValue
Print lsValue to oReportView1.SectionName.1
Output_Pagecheck oReportView1.SectionName
End_Procedure
// Procedures Page_Top thru Page_Bottom ONLY get used by the outermost report
// object... All other objects delegate messages to this ultimate parent.
// creating these procedures in child reports will have NO effect.
// Procedure_Section Page_Top as oReportView1.SectionName
// Procedure_Section Report_Header as oReportView1.SectionName
// Procedure_Section Page_Header as oReportView1.SectionName
// Procedure_Section Page_Title as oReportView1.SectionName
// Procedure_Section Page_Total as oReportView1.SectionName
// Procedure_Section Page_Footer as oReportView1.SectionName
// Procedure_Section Report_Footer as oReportView1.SectionName
Procedure_Section Page_Bottom as oReportView1.SectionName
Send _PrintSectionName "Page_Bottom (last thing printed on every page)"
End_Procedure
Procedure_Section Body as oReportView1.body // or Procedure_Section Body
Print customer.name to oReportView1.body.1 // Sets the data fields
Print customer.city to oReportView1.body.2
Output_Pagecheck oReportView1.body // Prints the data to screen
End_Procedure
//Procedure_Section Total as oReportView1.SectionName
End_Object
Procedure run_report
send run_report to (oMainReport(self))
End_Procedure
End_Object
procedure Activate_Report_View_1 send run_report to (oReportView1(self)) end_procedure
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Objects
Object oOrder is a Entry_View_Client oOrder.hdr Set location 5 8 ABSOLUTE
Object Orderhea_DD is a Data_Set NO_IMAGE
Set main_file to Orderhea.file_number
End_Object
Object Orderdtl_DD is a Data_Set NO_IMAGE
Set main_file to Orderdtl.file_number
Send attach_server (Orderhea_DD(current_object))
//Set constrain_file to orderhea.file_number
begin_constraints
Constrain orderdtl relates to orderhea
end_constraints
End_Object
Object oForm is a Entry_Form oOrder.frm
Set location 1 0 RELATIVE
Set Server to (Orderhea_DD(current_object))
item_list
Entry_Item ORDERHEA.ORDER_NUMBER { AutoClear AutoFind }
Entry_Item ORDERHEA.ORDER_DATE { AutoClear NoEnter }
Entry_Item ORDERHEA.SHIP_VIA { AutoClear NoEnter }
Entry_Item ORDERHEA.ORDERED_BY { AutoClear NoEnter }
Entry_Item ORDERHEA.ORDER_TOTAL { AutoClear NoEnter }
end_item_list
End_Object
Object oList is a Selection_List oOrder.lst
Set location 13 0 RELATIVE
Set Server to (Orderdtl_DD(current_object))
Begin_Row
Entry_Item ORDERDTL.DETAIL_NUMBER { AutoClear AutoFind NoPut}
Entry_Item ORDERDTL.ITEM_ID { AutoClear }
Entry_Item ORDERDTL.QTY_ORDERED { AutoClear }
Entry_Item ORDERDTL.PRICE { AutoClear }
Entry_Item ORDERDTL.EXTENDED_PRICE { AutoClear }
End_Row
End_Object
End_Object
An object can be of different types Containers - Entry_View_Client : - View_Client : - ModalClient : Needs UI and brakes the flow
Controles - Entry_Form : Data Aware - Form : Non Data Aware - List : Non Data Aware - Table : Data Aware
