Let's start with a simple but very insteresting application.
[Req Spec]An input box and a button needed.
When end users input a web address, for example, "
http://www.google.com", then clicks button, a sigma window popup with google page inside.
[Do It Yourself]1. Drag an [Input] to design area, set [alias] to "input1"(Click input to select it, type "input1" in [Component Config Window]->[alias]，and strike [Enter] on keyboard).
2. Drag a [Button] to design area.
3. Add event handler for button being clicking.(Click button to select it，click on right side of [Component Config Window]->[events]->[onClick]，a small button will appear. Click this button, a dialog box will pop up.)
4. You will see the following lines in the dialog
5. Add one line of code. It looks like this.
6. Click [OK] to close dialog. Run it to see what happen
To be continued...
