JRDesignImage compile become JRBaseImage in Page Header Band

[elainetmy]

Hi, 

I've a problem in showing images in Page Header Band.

This is my code.

band = new JRDesignBand();

band.setHeight(100);

 

image = new JRDesignImage(jasperDesign);

image.setX(450);

image.setY(10);

image.setHeight(30);

image.setWidth(30);

expression = new JRDesignExpression();

expression.setValueClass(java.lang.String.class);

expression.setText("$P{ImageUrl}");

image.setExpression(expression);

band.addElement(image);

 

jasperDesign.setPageHeader(band);

 

When I debugged the code, I noticed that after compilation of the report, it convert from JRDesignImage to JRBaseImage.

 

May I know what's problem with my code?

 

Thank you.

 

Elaine.

[elainetmy]

I solved my problem by adding a frame to my band and add the images into the frame.

I'm not sure why it solves the problem. 

Elaine.