You are right.... Just create a panel and place the image there....
Try this
import org.apache.wicket.ResourceReference;
import
org.apache.wicket.extensions.markup.html.repeater.data.grid.ICellPopulator;
import
org.apache.wicket.extensions.markup.html.repeater.data.table.PropertyColumn;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.model.IModel;
public class BooleanImageColumn extends PropertyColumn<Boolean> {
private static final long serialVersionUID = 1L;
private static final ResourceReference TRUE_IMG = new
ResourceReference(BooleanImageColumn.class, "true.gif");
private static final ResourceReference FALSE_IMG = new
ResourceReference(BooleanImageColumn.class, "false.gif");
public BooleanImageColumn(IModel<String> displayModel, String
propertyExpression) {
super(displayModel, propertyExpression);
}
public BooleanImageColumn(IModel<String> displayModel, String
sortProperty, String propertyExpression) {
super(displayModel, sortProperty, propertyExpression);
}
@Override
public void populateItem(Item<ICellPopulator<Boolean>> item, String
componentId, IModel<Boolean> rowModel) {
if(rowModel.getObject() == null ||
rowModel.getObject().equals(Boolean.FALSE))
item.add(new ImagePanel(componentId, FALSE_IMG));
else
item.add(new ImagePanel(componentId, TRUE_IMG));
}
}
where
import org.apache.wicket.ResourceReference;
import org.apache.wicket.markup.html.image.NonCachingImage;
import org.apache.wicket.markup.html.panel.Panel;
public class ImagePanel extends Panel {
private static final long serialVersionUID = 1L;
/**
* @param id
*/
public ImagePanel(String id, ResourceReference image) {
super(id);
add(new NonCachingImage("image", image));
}
}
and ImagePanel.html
<html>
<body>
<wicket:panel>
<img wicket:id="image"/>
</wicket:panel>
</body>
</html>
Ernesto
On Mon, Jan 4, 2010 at 2:49 PM, chinedu efoagui <[email protected]>wrote:
> I applied you class with a few modifications it gave me this error.
> I think it is expecting an img tag somewhere
>
> [code]
> WicketMessage: Component cell must be applied to a tag of type 'img',
> not '<span wicket:id="cell">' (line 0, column 0)
> [markup =
> file:/C:/Users/bond/.netbeans/6.8/apache-tomcat-6.0.20_base/work/Catalina/localhost/hr/loader/org/apache/wicket/extensions/markup/html/repeater/data/table/DataTable.html
> <!--
>
> <wicket:panel>
> <thead wicket:id="topToolbars">
> <wicket:container wicket:id="toolbar"></wicket:container>
> </thead>
> <thead wicket:id="bottomToolbars">
> <wicket:container wicket:id="toolbar"></wicket:container>
> </thead>
> <tbody>
> <tr wicket:id="rows">
> <td wicket:id="cells">
> <span wicket:id="cell">[cell]</span>
> </td>
> </tr>
> </tbody>
> </wicket:panel>
>
> , index = 21, current = '<span wicket:id="cell">' (line 27, column 4)]
> at
> org.apache.wicket.markup.MarkupStream.throwMarkupException(MarkupStream.java:465)
> at org.apache.wicket.Component.checkComponentTag(Component.java:3475)
> at
> org.apache.wicket.markup.html.image.Image.onComponentTag(Image.java:228)
> at
> org.apache.wicket.markup.html.image.NonCachingImage.onComponentTag(NonCachingImage.java:124)
> at org.apache.wicket.Component.renderComponent(Component.java:2597)
> at
> org.apache.wicket.markup.html.WebComponent.onRender(WebComponent.java:62)
> at org.apache.wicket.Component.render(Component.java:2457)
> at
> org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1414)
> at
> org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1577)
> at
> org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1501)
> at org.a
> [code]
>
> On Mon, Jan 4, 2010 at 2:04 PM, chinedu efoagui <[email protected]>
> wrote:
> > thank i will try it and give u feed back
> >
> > On Mon, Jan 4, 2010 at 2:02 PM, Ernesto Reinaldo Barreiro
> > <[email protected]> wrote:
> >> I haven't tried it but this might work
> >>
> >> public class BooleanImageColumn extends PropertyColumn<Boolean> {
> >>
> >> private static final long serialVersionUID = 1L;
> >>
> >>
> >> private static final ResourceReference TRUE_IMG = new
> >> ResourceReference(BooleanImageColumn.class, "true.gif");
> >> private static final ResourceReference FALSE_IMG = new
> >> ResourceReference(BooleanImageColumn.class, "false.gif");
> >>
> >> public BooleanImageColumn(IModel<String> displayModel, String
> >> propertyExpression) {
> >> super(displayModel, propertyExpression);
> >> }
> >>
> >> public BooleanImageColumn(IModel<String> displayModel, String
> >> sortProperty, String propertyExpression) {
> >> super(displayModel, sortProperty, propertyExpression);
> >> }
> >>
> >>
> >> @Override
> >> public void populateItem(Item<ICellPopulator<Boolean>> item, String
> >> componentId, IModel<Boolean> rowModel) {
> >> if(rowModel.getObject() == null ||
> >> rowModel.getObject().equals(Boolean.FALSE))
> >> item.add(new NonCachingImage(componentId, FALSE_IMG));
> >> else
> >> item.add(new NonCachingImage(componentId, TRUE_IMG));
> >> }
> >> }
> >>
> >> Just place a "true.gif" and a "false.gif" on the same package as
> >> BooleanImageColumn.
> >>
> >> Ernesto
> >>
> >> On Mon, Jan 4, 2010 at 1:31 PM, chinedu efoagui <[email protected]
> >wrote:
> >>
> >>> hello
> >>> I have a an object which contains a boolean field (true ,false) it
> renders
> >>> well.
> >>> I want to do is instead on of it showing true or false on the cell. I
> >>> want it to show an image if it is true and another image if the
> >>> attribute is false?
> >>> Please how can i achieve this?
> >>> Thank you
> >>>
> >>> ---------------------------------------------------------------------
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> >>> For additional commands, e-mail: [email protected]
> >>>
> >>>
> >>
> >
>
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>
