如何在wicket框架中的表中添加图像列? [英] How can I add an image column to a table in wicket framework?
问题描述
我想在检票口框架的表的每个单元格中添加一个包含图像的列.我在Java类中制作表，并具有如下的createColumns()方法:
I want to add a column containing images in each cell of a table in wicket framework. I make the table in a java class and have a createColumns() method as the following:
private List<IColumn> createColumns() {
List<IColumn> columns = new ArrayList<IColumn>();
// Create the columns that will be displayed, second param is the sort
// order
// Use column position for aggregate functions
// Otherwise the query uses column aliases so these need to match here
columns.add(new PropertyColumn(new Model("Status"), "code") {
private static final long serialVersionUID = 1L;
@Override
public void populateItem(Item item, String componentId, IModel model) {
Object[] values = ((ArrayWrapper) model.getObject()).getArray();
setStatus((Integer) values[0]);
item.add(new Image(componentId, new ResourceReference(this.getClass(), getStatus())));
}
});
columns.add(new PropertyColumn(new Model("First"), "2", "array[1]"));
columns.add(new PropertyColumn(new Model("Last"), "3", "array[2]"));
columns.add(new PropertyColumn(new Model("Sender"), "sender",
"array[4]"));
columns.add(new PropertyColumn(new Model("Receiver"), "receiver",
"array[5]"));
columns.add(new HeaderlessColumn() {
private static final long serialVersionUID = 1L;
public void populateItem(Item cellItem, String componentId,
IModel rowModel) {
cellItem.add(new ActionPanel(componentId, rowModel));
};
});
return columns;
}
html文件如下所示:
The html file is simply as the following:
<html xmlns:wicket="http://wicket.sourceforge.net/">
<body>
<wicket:extend>
<table align="center" wicket:id="results"></table>
</wicket:extend>
</body>
</html>
但是我得到一个例外:
org.apache.wicket.markup.MarkupException:组件单元必须应用于类型为'img'的标签，而不是''(第0行，第0列)
org.apache.wicket.markup.MarkupException: Component cell must be applied to a tag of type 'img', not '' (line 0, column 0)
这与我创建图像列的行有关.谁能帮我做到这一点?
And it's related to the lines that I make the column for image. Can anyone help me how I can make it?
推荐答案
CreateColumns方法中的代码如下:
The code in CreateColumns method is as the following:
columns.add(new PropertyColumn(new Model("Status"), "code") {
private static final long serialVersionUID = 1L;
@Override
public void populateItem(Item item, String componentId, IModel model) {
Object[] values = ((ArrayWrapper) model.getObject()).getArray();
setStatus((Integer) values[0]);
item.add(new ImagePanel(componentId, new ResourceReference(SearchResults.class, getStatus())));
}
});
这是ImagePanel:
And this is the ImagePanel:
public class ImagePanel extends Panel {
private static final long serialVersionUID = 1L;
/**
* @param id
*/
public ImagePanel(String id, ResourceReference image) {
super(id);
add(new Image("status", image));
}
}
该面板的html代码为:
The html code for the panel is:
<html xmlns:wicket="http://wicket.sourceforge.net/">
<body>
<wicket:panel>
<img wicket:id="status"/>
</wicket:panel>
</body>
</html>
这篇关于如何在wicket框架中的表中添加图像列?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
