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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Enable and Disable lin...
Microsoft Dynamics AX (Archived)

Enable and Disable lines button on header form

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Posted on by MYGz 2,059

Hi,

I'm working in test environments and trying to learn forms.

I'm trying to mimic the 'General Journal' form Lines button enable/disable behavior on 2 simple custom forms that I created, "HeaderForm" and "LineForm".

I have created a "Lines" button (which has a menu-item with "LineForm") on "HeaderForm".

To disable the "lines" button on header form when opening the line form I have written button.enable(false); in clicked() method of the 'Lines' button. The button gets disabled correctly.

But how do I enable the button on the header form only when the line form is closed?

I can't figure out how to access the Header form button in lines form Close() method.

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  • Suggested answer
    nmaenpaa Profile Picture
    nmaenpaa 101,160 Moderator on at
    RE: Enable and Disable lines button on header form

    I think on the journal forms, the system updates a "Blocked" checkbox in the header table when the Lines form is opened. And when the Lines form is closed, that checkbox is cleared. Only this way it can be disabled for all users, if one user is working on the lines.

    The enable/disable logic should be written in the active method of the data source on the header form.

    When the Lines form is opened or closed, you need to update the Blocked field, and call the header form data source refresh so that the button gets updated for the current user.

    You can refresh the header form's data source from the close method of the lines form by:

    element.args().record().dataSource().refresh();

element.args().record().dataSource().research(true):
  • MYGz Profile Picture
    MYGz 2,059 on at
    RE: Enable and Disable lines button on header form

    Thanks Nikolaos. Working on this. Will provide detailed feedback once I finish implementing it.

  • MYGz Profile Picture
    MYGz 2,059 on at
    RE: Enable and Disable lines button on header form

    Hi Nikolaos,

    On exploring the LedgerJournalTable form, I'm getting the impression that when lines button is clicked, "In Use" checkbox is checked and "Used by User" gets the userid.

    There's an edit method  inUseBlock in LedgerJournalTable DataSource in LedgerJournalTable Form as below:

    //BP Deviation Documented

edit JournalMarkInUseBlock inUseBlock(boolean _set, JournalTableMap _journalTable, JournalMarkInUseBlock _value)

{

   ;

   return journalFormTable.datasourceMethodInUseBlock(_set, _journalTable, _value);

}

    public JournalMarkInUseBlock datasourceMethodInUseBlock(
    boolean                 _set,
    JournalTableMap         _journalTable,
    JournalMarkInUseBlock   _value)
{
    if (_set)
    {
        if (!_value && _journalTable.SessionId)
        {
            if (formRunLines)
            {
                formRunLines.close();
            }
            else
            {
                journalTableData.updateBlock(JournalBlockLevel::None,JournalBlockLevel::None);
                this.updateFormCacheCurrent(journalTableData.journalTable());
                journalTable_ds.active();
            }
        }

    }
    return _journalTable.SessionId ? true : false;
}
    

    

    I tried debugging but I'm unable to figure out how the "In Use" is checked, unchecked and how the lines button is enabled, disabled based on the "In Use".
    
                      
    
                    
    
                        
                        
    
                            





 





 










 





 






    
    
    
    
    
        
    
    
    


                        
    
                         
                      
                          
                       
                        
                        
     
                          
                        
    
                        
                        
                        
                            
                        
                        
                  
    
                
    
              
    
            
    
          
    
        
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                nmaenpaa
                101,160 
                
                 
                
                
             
         
            
                
                        
                        
                             
                                
                                        
                                        Moderator
                                        
                            
                         
                     
                 
            

    


 on  at 
                        
    
                    
    
                        
    
                        
    
                        
                          
                        
                      
    
                    
    
                  
    
                
    
              
    
              
    
                
    
                  
    
                    
    
                      
     RE: Enable and Disable lines button on header form
    
                    
    
                    
    
                      
    
                        
    Did you debug these methods? Are they called when the user opens the Lines form?
    

    You can also use the cross references to see who (which code) read/write the InUse field.
    

                      
    
                    
    
                        
                        
    
                            





 





 










 





 






    
    
    
    
    
        
    
    
    


                        
    
                         
                      
                          
                       
                        
                        
     
                          
                        
    
                        
                        
                        
                            
                        
                        
                  
    
                
    
              
    
            
    
          
    
        
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                MYGz
                2,059 
                
                 
                
                
             
         
            
                
                        
                 
            

    


 on  at 
                        
    
                    
    
                        
    
                        
    
                        
                          
                        
                      
    
                    
    
                  
    
                
    
              
    
              
    
                
    
                  
    
                    
    
                      
     RE: Enable and Disable lines button on header form
    
                    
    
                    
    
                      
    
                        
    Hi Nikolaos,
    

    I found the code where it's enabling and disabling the line button, but I still can't figure out the execution flow.
    

    Here's the code:
    

    

    class JournalFormTable extends JournalForm
{
	...
	...
	public void enableButtonsActive(boolean _enableInfolog = true)
	{
		boolean enabled = journalTableData.blockLevel() == JournalBlockLevel::None  
							&& !formRunLines 
							&& journalTable.JournalNameId;

		if (ctrlLines)
		{
			ctrlLines.enabled(enabled);
		}
		
	...
	...
}

    

    

    

    class FormRun extends ObjectRun
{
...
    void init()
    {
       ...
       journalFormTable.parmCtrlLines(journalLines);
       ...
...
}
    

    

    Thanks.
    

    
                      
    
                    
    
                        
                        
    
                            





 





 










 





 






    
    
    
    
    
        
    
    
    


                        
    
                         
                      
                          
                       
                        
                        
     
                          
                        
    
                        
                        
                        
                            
                        
                        
                  
    
                
    
              
    
            
    
          
    
        
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