Problem with Panel Inheritance

[Stefan]

Hi,

I have an inherited panel. In the design view of the child panel the attribute is not displayed. Why not?
Below you see the super class and the child class.

Thanks for any help,
Stefan

Code: Select all

public class PanelGui_fieldStandard extends JPanel {

  private JLabel labelAttribute = new JLabel("attribute");

  public JLabel getLabelAttribute() { return labelAttribute; }
  public void setLabelAttribute(JLabel l) { labelAttribute = l; }

  public PanelGui_fieldStandard() {
    super();
    setLayout(null);
    labelAttribute = new JLabel("attribute");
    labelAttribute.setBounds(10, 10, 200, 20);
    add(labelAttribute);
  }
}


public class PanelGui_fieldImpl extends PanelGui_fieldStandard {

  public PanelGui_fieldImpl() {
    super();
  }

}

[Eric Clayberg]

I have an inherited panel. In the design view of the child panel the attribute is not displayed. Why not?

I don't know. I tried your example and it worked fine for me...



What version of Eclipse are you using? What version of Designer? Make sure that you are using the latest.

Does your Eclipse ".log" show any exceptions?

Does either class have a compilation problem in your system?

Does your project /bin directory contain .class files for both classes?

Have you tried refreshing and building your project?

[Helloworld]

Hi Stefan,

I seem this happen ones before. I just exit Eclipse and start again (kinda like reboot M$ windows) and the "VIEW" would work fine again. You must worked too hard

Hi,

I have an inherited panel. In the design view of the child panel the attribute is not displayed. Why not?
Below you see the super class and the child class.

Thanks for any help,
Stefan

Code: Select all

public class PanelGui_fieldStandard extends JPanel {

  private JLabel labelAttribute = new JLabel("attribute");

  public JLabel getLabelAttribute() { return labelAttribute; }
  public void setLabelAttribute(JLabel l) { labelAttribute = l; }

  public PanelGui_fieldStandard() {
    super();
    setLayout(null);
    labelAttribute = new JLabel("attribute");
    labelAttribute.setBounds(10, 10, 200, 20);
    add(labelAttribute);
  }
}


public class PanelGui_fieldImpl extends PanelGui_fieldStandard {

  public PanelGui_fieldImpl() {
    super();
  }

}

[Eric Clayberg]

I seem this happen ones before.

In that case, there would have likely been an exception written to your Eclipse log file.

You should check to see whether there is a .class file for your class.

If there is a delay in Eclipse building your project (or you have Build Automatically turned off), there won't be a .class file available, so visual inheritance won't work.

[Stefan]

>What version of Eclipse are you using? What version of Designer? Make
>sure that you are using the latest.
Eclipse 3.1.1
Designer 4.2.1

>Does your Eclipse ".log" show any exceptions?
none

>Does either class have a compilation problem in your system?
no

>Does your project /bin directory contain .class files for both classes?
yes

>Have you tried refreshing and building your project?
yes, I also restarted Eclipse

This is what I see:

[Eric Clayberg]

This is what I see

Visual Inheritance is not supported in free mode (note the Pro Mode Only text at the bottom of your screen shot).

You need to be using a fully licensed version of the product or have a current evaluation key.