NavigationPane property and objectname explanation

Hi all!

I worked with a variety of examples of applications that use objects NavigationPane (in QML) and have noticed that sometimes the pages and/or lists that are in the NavigationPane resemble properties of the component:

NavigationPane {}

ID: navigationPane

firstPage: {Page}

ID: pgMain

content: {Of container

{To ListView

ID: listView

set the name of the object to leave listView to be detectable from C++

objectName: "listView".

layout: {GridListLayout}

...

Then, at other times, the words I in bold are simply not there.  This makes a difference or have a meaning? Also, when and why do you use ' objectName.  I looked through the documentation on both of these topics and not found many explanations.

objectName can also be used in QML, for example, when a child iteration of a container to distinguish them.

firstPage and content are the default properties. If the property name is omitted, the children of the element will be bound to a property by default (if there is a sense). More information on this:

http://Qt-project.org/doc/Qt-4.8/PropertyBinding.html#default-properties

Or better yet the example of Qt 5 documentation (it still applies to 4.8):

http://Qt-project.org/doc/Qt-5.0/qtqml/qtqml-syntax-objectAttributes.html#default-properties

Tags: BlackBerry Developers

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