Store Keystrokes in X++

问题

Does anybody knows how to store keystroke as a string in X++?

And also if I want to covert them to ASCII and vise-versa.

And the below job does not shows the expected behaviour.

public void textChange() 
{ 
       int i, j; 
       int L = 12; 
       int h = 4; 
       int t = 54; 
       str tmpStr; 
   ;  

  i =  strLen(strKeep(seField.text(), '\n')); 
  info(seField.text() + ' Lines: ' + int2str(i)); 
  super(); 
  if (i >= H) 
 { 
  error(strFmt("max lines = %1", h));  
 } 
} 

   Actually i am trying to implement something like- 

in a textChange method of stringEdit when i enter "A"(or any value) it should display "A line 0"(in info log) then i enter B it should display "AB line 0" (in info). Once i press enter and the enter "Q" display shoud be something like "AB Line 0"(1st line) "Q Line 1"(2nd line) and so on. I face problem with "\n"(Enter) So I need to achieve this through ASCII value. Thanks.

回答1:

I don't see how task() is going to help you.

It seems that when the StringEdit control contains carriage returns, StringEdit.text() is always giving a wrong result when you're checking it in the textChange() method. Probably an AX bug. You can use the modified() method to get the correct result at least afterwards.

Exportfile for AOT version 1.0 or later
Formatversion: 1

***Element: FRM

; Microsoft Dynamics AX Forms unloaded
; --------------------------------------------------------------------------------
FRMVERSION 5

FORM #TestForm1
  PROPERTIES
    Name                #TestForm1
  ENDPROPERTIES

  METHODS
    Version: 3
    SOURCE #updateOutput
      #void updateOutput()
      #{
      #    container c = str2con(Input.text(), '\n');
      #    int i;
      #    str s;
      #    ;
      #
      #    for (i = 1; i <= conlen(c); i++)
      #        s += strfmt("Line %1: %2\n", i, conpeek(c, i));
      #
      #    Output.text(s);
      #}
    ENDSOURCE
    SOURCE #classDeclaration
      #public class FormRun extends ObjectRun
      #{
      #
      #}
    ENDSOURCE
  ENDMETHODS
  OBJECTBANK
    PROPERTIES
    ENDPROPERTIES

  ENDOBJECTBANK

  JOINS
  ENDJOINS

  DESIGN
    PROPERTIES
    ENDPROPERTIES

    CONTAINER
      CONTROL STRINGEDIT
        PROPERTIES
          Name                #Input
          AutoDeclaration     #Yes
          Width               #Column width
          Height              #Column height
          MultiLine           #Yes
        ENDPROPERTIES

        METHODS
          Version: 3
          SOURCE #modified
            #public boolean modified()
            #{
            #    boolean ret = super();
            #    ;
            #
            #    element.updateOutput();
            #
            #    return ret;
            #}
          ENDSOURCE
          SOURCE #textChange
            #public void textChange()
            #{
            #    super();
            #
            #    element.updateOutput();
            #}
          ENDSOURCE
        ENDMETHODS
      ENDCONTROL

      CONTROL STRINGEDIT
        PROPERTIES
          Name                #Output
          AutoDeclaration     #Yes
          AllowEdit           #No
          Width               #Column width
          MultiLine           #Yes
        ENDPROPERTIES

      ENDCONTROL

    ENDCONTAINER

  ENDDESIGN

ENDFORM

***Element: END

Update. You can probably trigger the modified() method from textChange() - that would be a hack, I didn't try it.

回答2:

The only way to store keystrokes in an AX form is use the task() method on the form.

But do not do it for the purpose you commented on!

Rather use a enum value or a combobox feeded with the relevant values to get the wanted behavior.

UPDATE: You may find some useful information on this subject here: http://www.axaptapedia.com/FormComboBoxControl
and here: http://blogs.msdn.com/b/palle_agermark/archive/2005/06/30/434146.aspx

回答3:

Try the SearchMode attribute of string control. To be useful the string value has to be mapped to an indexed table field.

来源：https://stackoverflow.com/questions/5401570/store-keystrokes-in-x