public void setValue(final Integer lineNo, final Integer colNo) {
        StringBuilder sb = new StringBuilder();
        if (lineNo == null) {
            // no value
        } else {
            sb.append(lineNo);
            if (colNo != null) {
                sb.append(":");
                sb.append(colNo);
            }
        }
        valueBox.setValue(sb.toString());
    }
Sets whether this widget is enabled.

@param enabled true to enable the widget, false to disable it
stroom-core-client-widget/src/main/java/stroom/widget/linecolinput/client/LineColInput.java