Passing control object to method

Question

I'm developing in Ax 2012. I have stringEdit controls on a form which holds the same type of information and share an EDT. I do validation on the EDT in a class. I call the class from a check method on the form. I use the same method on the form for all the stringEdit controls that needs this validation. I kick of the check method on the form from the validate method of each control.

My question: how do I pass the control that has been modified (and needs validation) to the check method? My check method on the form looks like this:

public void checkNumber(FormStringControl _cntrl)
{
        MyValidationClass     valClass = new MyValidationClass(); 
    ;

    if(!valClass.validateNumber(_cntrl.text()))
    {
        _cntrl.text("");     
    }
}

***the problem I have is passing the current control to the above method

The validate method on the control looks like this:

public boolean validate()
{
    boolean ret;
    //ret = super();
    ret = element.checkNumber(this);
    return ret;
}

The problem I have is passing the current control I am modifying to the checkNumber method. If I cannot pass “this” to the check method, what then should I be passing?

Jan B. Kjeldsen Jan B. Kjeldsen · Accepted Answer · 2012-03-21T17:08:38

It is fine to pass this, but you should call also super():

public boolean validate()
{
    return super() && element.checkNumber(this);
}

Or:

public boolean validate()
{
    return super() && new MyValidationClass.validateNumber(this.text());
}

Consider using a static method instead (on the controlling table): MyTable::validateNumber(this.text())

Consider using the validateField on the table instead:

public boolean validateField(fieldIdToCheck)
{
    boolean ret = super(fieldIdToCheck);
    switch (fieldIdToCheck)
    {
        case fieldNum(Table,Field):
            ret = MyValidationClass::validateNumber(table.Field) && ret;
            break;
    }
    return ret;
}

Then you do not have to make changes in the forms and you can use auto groups.

Passing control object to method

1 Answers