我是新的GWTP用户,我不确定如何在GWTP中创建表。我知道如何在GWT中制作一个。
// Create a CellTable.
CellTable<Contact> table = new CellTable<Contact>();
// Create name column.
TextColumn<Contact> nameColumn = new TextColumn<Contact>() {
@Override
public String getValue(Contact contact) {
return contact.name;
}
};
但这似乎并不适用于GWTP。有人可以帮我在GWTP程序中按下按钮获取值。
答案 0 :(得分:0)
我知道你在一个星期前问了这个问题,但是你可能仍然坚持下去,所以这里就是这样。您只需确保分别在Presenter
和View
中放置正确的逻辑位。
与原则上没有GWTP的MVP(Model-View-Presenter)没有区别:
您的Presenter
的工作是让数据填满CellTable
,并将其传递给View
:
public class TablePresenter extends Presenter<TablePresenter.MyView, TablePresenter.MyProxy>
{
public interface MyView extends View
{
void addData(List<Contact> accounts); // pass data to view
}
// proxy and constructor omitted for brevity...
@Override
protected void onReveal()
{
super.onReveal();
// server action to get contacts
dispatchAsync.execute(new GetContacts(), new AsyncCallback<GetContactsResult>()
{
@Override
public void onSuccess(GetContactsResult result)
{
getView().addData(result.getContacts());
}
});
}
}
您的View
的工作是初步设置CellTable
及其Column
,以及从Presenter
接收数据。在这里,我使用TextColumn
:
Column
和ButtonCell
public class TableView extends View implements TablePresenter.MyView
{
@UiField
CellTable<Contact> table;
// use a dataprovider to hold the data
private ListDataProvider<Contact> dataProvider = new ListDataProvider<Contact>();
// COLUMNS
TextColumn<Contact> nameColumn;
Column<Contact, String> buttonColumn;
@Inject
public AccountsView(Binder uiBinder)
{
initWidget(uiBinder.createAndBindUi(this));
initTable();
}
private void initTable()
{
nameColumn = new TextColumn<Contact>()
{
@Override
public String getValue(Contact object)
{
return object.name;
}
};
// now add the column to the table
table.addColumn(nameColumn, "Name");
buttonColumn = new Column<Contact, String>(new ButtonCell())
{
// the text of the button
@Override
public String getValue(Contact object)
{
return "Delete " + object.name;
}
};
// set the button action
deleteColumn.setFieldUpdater(new FieldUpdater<Contact, String>()
{
@Override
public void update(int index, Contact object, String value)
{
// whatever you want to do when you click the button
Window.alert("You pressed " + object.name);
}
});
fileTable.addColumn(deleteColumn);
// link dataprovider to the table
dataProvider.addDataDisplay(table);
}
@Override
public void addData(List<Contact> contacts)
{
// clear the dataProvider's list
dataProvider.getList().clear();
// pass the data into the list
dataProvider.setList(contacts);
}
}
然后在你的UiBinder中:
<g:HTMLPanel>
<b:CellTable ui:field="table" />
</g:HTMLPanel>