OraFormsVerifyPropNull Function

Action

Verifies if a property value is NULL.

Include file

OraForms.bdh

OraForms.bdh Syntax

OraFormsVerifyPropNull( in sName         : string, 
                        in nPropId       : number, 
                        in bShouldBeNull : boolean, 
                        in nSeverity     : number optional := SEVERITY_ERROR ) : boolean;

Return value

  • true if successful
  • false otherwise
Parameter Description
sName The control's unique name.
nPropId The property ID.
bShouldBeNull Set to "true" when the property should be verified with NULL.
nSeverity Optional: Severity of the error that is raised if the verification fails. Can be one of the following values:
  • SEVERITY_SUCCESS: Success; no error (numerical value: 0)
  • SEVERITY_INFORMATIONAL: Informational; no error (numerical value: 1)
  • SEVERITY_WARNING: Warning; no error (numerical value: 2)
  • SEVERITY_ERROR: (Default) Error; simulation continues (numerical value: 3)
  • SEVERITY_TRANS_EXIT: Error; the active transaction is aborted (numerical value: 4)
  • SEVERITY_PROCESS_EXIT: Error; the simulation is aborted (numerical value: 5)

Example

transaction TMain 
var 
  sValue :  string; 
begin 
  OraFormsSetConnectMode(ORA_SOCKET_CONNECTION); 
  // Connect - with connection properties 
  OraFormsSetInt( "INITIAL_VERSION", 608); 
  OraFormsSetPoint( "INITIAL_RESOLUTION", 96,  96); 
  OraFormsSetPoint( "INITIAL_DISP_SIZE", 1024,  768); 
  OraFormsSetInt( "INITIAL_COLOR_DEPTH", 256); 
  OraFormsSetString( "FONT_NAME" , "Dialog" ); 
  OraFormsSetPoint( "INITIAL_SCALE_INFO", 8,  18); 
  OraFormsSetBoolean( "WINSYS_REQUIREDVA_LIST",  false); 
  OraFormsConnect( "server module=Person3.fmx userid= useSDI=yes record=names"); 
  OraFormsSetWindow( "Logon"); 
  OraFormsLogon( "user",  "password",  "orcl_server"); 
  // --- 
  // New window activated: WINDOW1 
  OraFormsSetWindow( "WINDOW1"); 
  OraFormsMenuItem( "WINDOW1",  "Query::Execute Query"); 
  OraFormsVerifyPropNull( "PERSON_SECONDNAME_0", ORA_PID_VALUE,  true, SEVERITY_WARNING); 
  OraFormsMenuItem( "WINDOW1",  "Action::Exit"); 
end TMain;