Re: DlangUI EditLine question

[Vadim Lopatin via Digitalmars-d-learn]

On Sunday, 15 March 2015 at 16:21:21 UTC, Kyle wrote:
I have a variable, x, which I want to update when the content 
of a DlangUI EditLine is modified. I tried making this work 
with the "onContentChange" method listed in the API 
documentation, but dmd told me it's not there. I've got this 
working now by implementing a custom subclass of EditLine as 
below:


class XEditLine : EditLine
{
    this(string ID, dstring initialContent = null)
    {
        super(ID, initialContent);
    }

    override bool onKeyEvent(KeyEvent e)
    {
        super.onKeyEvent(e);
        x = to!double(this.text);
        return true;
    }
}


This works but it seems like there should be a cleaner way to 
do this, any suggestions? Thanks.

You can either override onContentChange or use 
onContentChangeListener


override void onContentChange(EditableContent content, 
EditOperation operation, ref TextRange rangeBefore, ref TextRange 
rangeAfter, Object source) {
   super.onContentChange(content, operation, rangeBefore, 
rangeAfter, source);
   // do something
   x = to!double(this.text);
}

or

EditLine line = new EditLine();
line.onContentChangeListener = delegate(EditableContent) {
    // do something
    x = to!double(line.text);
}



of a DlangUI EditLine is modified. I tried making this work 
with the "onContentChange" method listed in the API 
documentation, but dmd told me it's not there. I've got this

If you don't see onContentChange method, probably you have older 
version of DlangUI. Try dub upgrade --force-remove