Question

我想创建listbox。当用户点击时我想将datagrid显示到下拉列表中。私有DataGrid objDataGrid;

public CallDataGrid() {
    // TODO Auto-generated constructor stub
}
public CallDataGrid(ArrayList<Student> objArrayList) {

    System.out.println("Datagrid is now going to set.");
    objDataGrid = new DataGrid<Student>();
    objLayoutPanel = new SimpleLayoutPanel();
    objScrollPanel = new ScrollPanel();

    objScrollPanel.add(objDataGrid);
    objLayoutPanel.add(objScrollPanel);

    objDataGrid.setEmptyTableWidget(new Label("There is no data to display."));

    final TextColumn<Student> nameColumn = new TextColumn<Student>() {
                         @Override
                         public String getValue(Student object) {
                                return object.getStrName();
                         }
    };
    objDataGrid.addColumn(nameColumn, "User Name");
    objDataGrid.setColumnWidth(nameColumn,100,Unit.PX);

    final TextColumn<Student> passwordColumn = new TextColumn<Student>() {
             @Override
             public String getValue(Student object) {
                return object.getStrPassword();
             }
      };
     objDataGrid.addColumn(passwordColumn, "Password");
     objDataGrid.setColumnWidth(passwordColumn,90,Unit.PX);

     objDataGrid.setWidth("190px");
     objDataGrid.setHeight("100px");

     objDataGrid.setRowData(0, objArrayList);
     objDataGrid.setPageSize(5);

//现在如何将此数据网格设置为列表框或建议框？

Answer 1

没有直接的方法来做你想做的事。您可以使用带右侧按钮的TextBox，而不是ListBox小部件。单击按钮时，将DataGrid放入PopupPanel并通过设置其在TextBox底部的位置来显示它。

如何在Gwt中将DataGrid Widget添加到Listbox中

1 个答案: