[英]How do I display a table in Vaadin?
Vaadin 7項目中有兩個課程。 我很難在主UI類中顯示表。 MyTable.java和DocUI.java。 加載localhost:8080時,如何在DocUI.java中顯示/顯示表?
public class MyTable extends DocUI{
public MyTable() {
Table table = new Table("The Brightest Stars");
table.addContainerProperty("Name", String.class, null);
table.addContainerProperty("Mag", Float.class, null);
Object newItemId = table.addItem();
Item row1 = table.getItem(newItemId);
row1.getItemProperty("Name").setValue("Sirius");
row1.getItemProperty("Mag").setValue(-1.46f);
table.addItem(new Object[] {"Canopus", -0.72f}, 2);
table.addItem(new Object[] {"Arcturus", -0.04f}, 3);
table.addItem(new Object[] {"Alpha Centauri", -0.04f}, 4);
table.setPageLength(table.size());
}
}
public class DocUI extends UI {
// new addition 4/28
public String[] userString = { "jacob.smith@example.com",
"isabella.johnson@example.com", "ethan.williams@example.com",
"emma.jones@example.com", "michael.brown@example.com" };
// create combo box
public ComboBox comboBox1 = new ComboBox("Random Combo Box") {
};
@WebServlet(value = "/*", asyncSupported = true)
@VaadinServletConfiguration(productionMode = false, ui = DocUI.class)
public static class Servlet extends VaadinServlet {
}
@Override
protected void init(VaadinRequest request) {
final VerticalLayout layout = new VerticalLayout();
layout.setMargin(true);
setContent(layout);
Button button = new Button("Click Me");
Button button2 = new Button("I am button 2");
button.addClickListener(new Button.ClickListener() {
public void buttonClick(ClickEvent event) {
layout.addComponent(new Label("Thank you for clicking"));
}
});
@SuppressWarnings("deprecation")
FieldGroup form = new FieldGroup();
layout.setSizeFull();
layout.addComponent(button);
layout.addComponent(button2);
addComponent(MyTable.table);
//new addition 4/28
layout.addComponent(comboBox1);
comboBox1.setInputPrompt("Select a value");
comboBox1.addItems("--add new user--", "jacob.smith@example.com", "isabella.johnson@example.com","ethan.williams@example.com","emma.jones@example.com","michael.brown@example.com");
}
}
你知道Java嗎? 不要從MyTable中的UI擴展。
public class MyTable{
private Table table;
public MyTable() {
this.table = new Table("The Brightest Stars");
/* do something with table */
}
public function getTable() {
return this.table;
}
}
知道您可以創建一個MyTable對象,然后將其用於getTable並將其添加到布局中。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.