Passing values between forms

For passing parameters from one form to another a special class Args is usually used.

Example:

The code of button click event of FormA which calls FormB and passes some parameters to that form.

void clicked()
{
    // Args class is usually used in Axapta for passing parameters between forms
    Args            args;
    FormRun         formRun;
    // Our custom made class for passing complex set of parameters
    FormBParams     formBParams = new FormBParams();
    Array           items = new Array( Types::String );
    int         i;
    ;
 
    args = new args();
 
    // Our values which we want to pass to FormB
    // If we want pass just simple string we can use 'parm' method of 'Args' class
    args.parm( strValue.text() );
    // We also can pass enum value to FormB
    args.parmEnum( NoYesEnumValue.selection() );
    args.parmEnumType( EnumNum( NoYes ) );
    // and also can pass a cursor pointing to some record (in our case it is EmplTable )
    args.record( EmplTable );
 
    // If we want pass more complex set of parameters we can develop our own class
    // just for passing our parameters.
    formBParams.parmSomeDate( someDate.dateValue() );
    formBParams.parmSomeTime( someTime.value() );
    for( i=0; i<ListBox.items(); i++ )
    {
        items.value( i+1,  ListBox.getText( i ) );
    }
    formBParams.parmItems( items );
    // Pass our object to FormB
    args.parmObject( formBParams );
 
    // Run FormB
    args.name( formstr( FormB ) );
    formRun = classFactory.formRunClass( Args );
    formRun.init();
    formrun.run();
    formrun.wait();
 
    if( formrun.closedOk() )
    {
        answerFromFormB.text( args.parm() );
    }
    super();
}

The code of init method of FormB

public void init()
{
    EmplTable       emplTableRecord;
    FormBParams     formBParams;
    Array           items;
    int             i;
    ;
    super();
 
    // Check for passed arguments
    if( element.args() )
    {
        // get string parameter
        strValue.text( element.args().parm() );
 
        // get enum parameter
        if( element.args().parmEnumType() == EnumNum( NoYes ) )
        {
            NoYesEnumValue.selection( element.args().parmEnum() );
        }
        // get object parameter
        if( element.args().parmObject() )
        {
            formBParams = element.args().parmObject();
            items       = formBParams.parmItems();
            for( i=1; i<=items.lastIndex(); i++ )
            {
                ListBox.add( items.value(i) );
            }
            someDate.dateValue( formBParams.parmSomeDate() );
            someTime.value( formBParams.parmSomeTime() );
        }
        // get record parameter
        if( element.args().record() && element.args().record().TableId == TableNum( EmplTable ) )
        {
            emplTableRecord =  element.args().record();
            emplName.text( emplTableRecord.Name );
        }
    }
}

The code of ok button click event of FromB

void clicked()
{
    super();
    element.args().parm( strAnswer.text() );
    element.closeOk();
}

The above code is cut out from a demo which you can download here.