Rowvalidating event c

Posted by / 10-Feb-2020 18:54

CALLBACK (event Type,subroutine Name,context ID,) or CALLBACK (event Type,public Program Entry Point,context ID,) A CALLBACK is used to execute a block of code at a given location when a specific event occurs.In some cases, this is tied to a specific control via the control ID.CALLBACKS must be registered before the PROCESS_EVENTS verb or within a SUBROUTINE that is called in response to an event.The REMOVE_CALLBACK verb removes event handling for the ".The event is typically a member of the event sender; for example, the Click event is a member of the Button class, and the Property Changed event is a member of the class that implements the INotify Property Changed interface.To define an event, you use the C# keyword in the signature of your event class, and specify the type of delegate for the event. Typically, to raise an event, you add a method that is marked as .

") RETURN REM This Callback is registered using Subroutine Name REM and therfore does a RETURN EDIT_MODIFY: event! Last Event() print "Edit control contains: ",event!

This parameter must be a BBj string expression: This is valid: CALLBACK(ON_BUTTON_PUSH,"foo::bar",0,101) And so is this: SUB$="foo::bar" CALLBACK(ON_BUTTON_PUSH, SUB$,0,101) But this is a syntax error: CALLBACK(ON_BUTTON_PUSH,foo::bar,0,101) REM Call Back Example SYSGUI=UNT OPEN (SYSGUI)"X0" Sys Gui!

= BBj API()Sys Gui() REM Create Controls PRINT (SYSGUI)'WINDOW'(50,50,400,200,"Example",

") RETURN REM This Callback is registered using Subroutine Name REM and therfore does a RETURN EDIT_MODIFY: event! Last Event() print "Edit control contains: ",event!This parameter must be a BBj string expression: This is valid: CALLBACK(ON_BUTTON_PUSH,"foo::bar",0,101) And so is this: SUB$="foo::bar" CALLBACK(ON_BUTTON_PUSH, SUB$,0,101) But this is a syntax error: CALLBACK(ON_BUTTON_PUSH,foo::bar,0,101) REM Call Back Example SYSGUI=UNT OPEN (SYSGUI)"X0" Sys Gui!= BBj API()Sys Gui() REM Create Controls PRINT (SYSGUI)'WINDOW'(50,50,400,200,"Example",[[

") RETURN REM This Callback is registered using Subroutine Name REM and therfore does a RETURN EDIT_MODIFY: event! Last Event() print "Edit control contains: ",event!

This parameter must be a BBj string expression: This is valid: CALLBACK(ON_BUTTON_PUSH,"foo::bar",0,101) And so is this: SUB$="foo::bar" CALLBACK(ON_BUTTON_PUSH, SUB$,0,101) But this is a syntax error: CALLBACK(ON_BUTTON_PUSH,foo::bar,0,101) REM Call Back Example SYSGUI=UNT OPEN (SYSGUI)"X0" Sys Gui!

= BBj API()Sys Gui() REM Create Controls PRINT (SYSGUI)'WINDOW'(50,50,400,200,"Example",$00090003$) PRINT (SYSGUI)'EDIT'(100,50,50,125,25,"",$$) PRINT (SYSGUI)'EDIT'(103,200,50,125,25,"",$$) PRINT (SYSGUI)'BUTTON'(110,62,125,75,25,"Button 1",$$) PRINT (SYSGUI)'BUTTON'(111,212,125,75,25,"Button 2",$$) REM Build the event base info templates DIM GENERIC$: NOTICETPL(0,0) DIM EVENT$: TMPL(SYSGUI) CONTEXT = 0 VAR = 2 REM Public Program Entry Point CALLBACK(ON_BUTTON_PUSH,pgm(-2) ":: BUTTON1_PUSH", CONTEXT,110) REM Subroutine Name CALLBACK(ON_BUTTON_PUSH, BUTTON2_PUSH, CONTEXT,111) CALLBACK(ON_EDIT_MODIFY, EDIT_MODIFY, CONTEXT,100) CALLBACK(ON_EDIT_MODIFY, EDIT_MODIFY, CONTEXT,103) CALLBACK(ON_CLOSE, EXIT_PROGRAM, CONTEXT,0) REM Process Events PROCESS_EVENTS REM This Callback is registered using Public Program Entry Point REM and therefore can Optionally do an ENTER REM and always uses an EXIT.

Before we validate data to grid cell, we need to cancel the Validate Cell event to prevent the users from exiting the cell until entering a valid editor value or cancelling the edit process.

Meanwhile, we can use the Validate Row event in the same way to prevent the user from exiting the current row.

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") RETURN REM This Callback is registered using Subroutine Name REM and therfore does a RETURN EDIT_MODIFY: event! Last Event() print "Edit control contains: ",event!This parameter must be a BBj string expression: This is valid: CALLBACK(ON_BUTTON_PUSH,"foo::bar",0,101) And so is this: SUB$="foo::bar" CALLBACK(ON_BUTTON_PUSH, SUB$,0,101) But this is a syntax error: CALLBACK(ON_BUTTON_PUSH,foo::bar,0,101) REM Call Back Example SYSGUI=UNT OPEN (SYSGUI)"X0" Sys Gui!= BBj API()Sys Gui() REM Create Controls PRINT (SYSGUI)'WINDOW'(50,50,400,200,"Example",$00090003$) PRINT (SYSGUI)'EDIT'(100,50,50,125,25,"",$$) PRINT (SYSGUI)'EDIT'(103,200,50,125,25,"",$$) PRINT (SYSGUI)'BUTTON'(110,62,125,75,25,"Button 1",$$) PRINT (SYSGUI)'BUTTON'(111,212,125,75,25,"Button 2",$$) REM Build the event base info templates DIM GENERIC$: NOTICETPL(0,0) DIM EVENT$: TMPL(SYSGUI) CONTEXT = 0 VAR = 2 REM Public Program Entry Point CALLBACK(ON_BUTTON_PUSH,pgm(-2) ":: BUTTON1_PUSH", CONTEXT,110) REM Subroutine Name CALLBACK(ON_BUTTON_PUSH, BUTTON2_PUSH, CONTEXT,111) CALLBACK(ON_EDIT_MODIFY, EDIT_MODIFY, CONTEXT,100) CALLBACK(ON_EDIT_MODIFY, EDIT_MODIFY, CONTEXT,103) CALLBACK(ON_CLOSE, EXIT_PROGRAM, CONTEXT,0) REM Process Events PROCESS_EVENTS REM This Callback is registered using Public Program Entry Point REM and therefore can Optionally do an ENTER REM and always uses an EXIT.Before we validate data to grid cell, we need to cancel the Validate Cell event to prevent the users from exiting the cell until entering a valid editor value or cancelling the edit process.Meanwhile, we can use the Validate Row event in the same way to prevent the user from exiting the current row.

]]090003$) PRINT (SYSGUI)'EDIT'(100,50,50,125,25,"",$$) PRINT (SYSGUI)'EDIT'(103,200,50,125,25,"",$$) PRINT (SYSGUI)'BUTTON'(110,62,125,75,25,"Button 1",$$) PRINT (SYSGUI)'BUTTON'(111,212,125,75,25,"Button 2",$$) REM Build the event base info templates DIM GENERIC$: NOTICETPL(0,0) DIM EVENT$: TMPL(SYSGUI) CONTEXT = 0 VAR = 2 REM Public Program Entry Point CALLBACK(ON_BUTTON_PUSH,pgm(-2) ":: BUTTON1_PUSH", CONTEXT,110) REM Subroutine Name CALLBACK(ON_BUTTON_PUSH, BUTTON2_PUSH, CONTEXT,111) CALLBACK(ON_EDIT_MODIFY, EDIT_MODIFY, CONTEXT,100) CALLBACK(ON_EDIT_MODIFY, EDIT_MODIFY, CONTEXT,103) CALLBACK(ON_CLOSE, EXIT_PROGRAM, CONTEXT,0) REM Process Events PROCESS_EVENTS REM This Callback is registered using Public Program Entry Point REM and therefore can Optionally do an ENTER REM and always uses an EXIT.Before we validate data to grid cell, we need to cancel the Validate Cell event to prevent the users from exiting the cell until entering a valid editor value or cancelling the edit process.Meanwhile, we can use the Validate Row event in the same way to prevent the user from exiting the current row.

090003$) PRINT (SYSGUI)'EDIT'(100,50,50,125,25,"",$$) PRINT (SYSGUI)'EDIT'(103,200,50,125,25,"",$$) PRINT (SYSGUI)'BUTTON'(110,62,125,75,25,"Button 1",$$) PRINT (SYSGUI)'BUTTON'(111,212,125,75,25,"Button 2",$$) REM Build the event base info templates DIM GENERIC$: NOTICETPL(0,0) DIM EVENT$: TMPL(SYSGUI) CONTEXT = 0 VAR = 2 REM Public Program Entry Point CALLBACK(ON_BUTTON_PUSH,pgm(-2) ":: BUTTON1_PUSH", CONTEXT,110) REM Subroutine Name CALLBACK(ON_BUTTON_PUSH, BUTTON2_PUSH, CONTEXT,111) CALLBACK(ON_EDIT_MODIFY, EDIT_MODIFY, CONTEXT,100) CALLBACK(ON_EDIT_MODIFY, EDIT_MODIFY, CONTEXT,103) CALLBACK(ON_CLOSE, EXIT_PROGRAM, CONTEXT,0) REM Process Events PROCESS_EVENTS REM This Callback is registered using Public Program Entry Point REM and therefore can Optionally do an ENTER REM and always uses an EXIT.

Before we validate data to grid cell, we need to cancel the Validate Cell event to prevent the users from exiting the cell until entering a valid editor value or cancelling the edit process.

Meanwhile, we can use the Validate Row event in the same way to prevent the user from exiting the current row.

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