New Features of ZK 6.5.1"
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=The Default Command for MVVM= | =The Default Command for MVVM= | ||
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ZK 6.5.1 brings a default command for MVVM. When a binder receives a command, it starts to find ViewModel's command methods by matching its name. If the binder cannot find a matched method, it invokes default command method. | ZK 6.5.1 brings a default command for MVVM. When a binder receives a command, it starts to find ViewModel's command methods by matching its name. If the binder cannot find a matched method, it invokes default command method. | ||
Revision as of 06:31, 3 December 2012
Timothy Clare, Potix Corporation
December 4, 2012
ZK 6.5.1
The Default Command for MVVM
- Available for ZK:
-
ZK 6.5.1 brings a default command for MVVM. When a binder receives a command, it starts to find ViewModel's command methods by matching its name. If the binder cannot find a matched method, it invokes default command method.
Assume that there are only two command methos in the below ViewModel. If we trigger a command "exit", a binder invokes the default command method defaultAction() because it cannot find a command method named "exit".
public class OrderVM {
@Command
public void newOrder(){
...
}
@DefaultCommand
public void defaultAction(){
...
}
}
Control Page visibility with HTML 5 API in ZK
- Available for ZK:
-
In ZK 6.5.1, the API with onVisibilityChange event was implemented which provides the ability to find out when a page is visible or hidden. This has a lot of benefit as it enables saving of CPU cycles as well as bandwidth. The following is a very simple example:
<window title="window" border="normal">
<attribute name="onVisibilityChange">
if (!event.isHidden())
lbl.setValue("Welcome back");
</attribute>
<label id="lbl"></label>
</window>
For more information please check the blog post here.
Comet Server push support
- Available for ZK:
-
Download & other resources
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