Antun’s Blog

Whether you realize it or not, you often use a subclass of the basevaluecomponent in OpenLaszlo. A typical example is radiobutton (which is used with radiogroup). The example for radiogroup in the OpenLaszlo reference is pretty simple: <canvas debug="true"> <radiogroup id="group1"> <radiobutton value="1" text="one"/> <radiobutton value="2" text="two" selected="true"/> <radiobutton value="3" text="three"/> </radiogroup> </canvas> I modified [...]

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The current release of OpenLaszlo doesn’t like empty handler tags. If you compile the following code, you’ll get a compiler warning: <canvas debug="true"> <handler name="oninit"> </handler> </canvas> The warning will say: “Refusing to compile an empty handler, you should declare the event instead” This wasn’t the case previously. The warning is intended to educate developers [...]

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When you want to trace something to the Debugger in OpenLaszlo, you can call the Debug.write() method. Often, you’ll want to write the value of something and a label, so that you can identify that output in the debugger, something like: Debug.write(“subviews: ” + canvas.subviews); However, it’s better to to get into a habit of [...]

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