我正在尝试使用 GWT 2.5rc1 自定义表格构建器为我的数据网格中的每一行呈现一个子表。我遵循了 2.5 rc1 展示中的示例(网址:http ://showcase2.jlabanca-testing.appspot.com/#!CwCustomDataGrid )。我能够看到新添加的子行,但是当我想向子行锚元素添加点击处理程序时问题就来了。点击处理程序从未被调用,这对我来说似乎也很清楚,因为我不是在任何地方“注册”事件处理程序。
这里是我现在使用的代码,“相关部分”:
private void buildRegRow(Registrazione rowValue,final int absRowIndex, boolean isCommentRow) {
// Calculate the row styles.
SelectionModel<? super Registrazione> selectionModel = cellTable.getSelectionModel();
boolean isSelected =
(selectionModel == null || rowValue == null) ? false : selectionModel
.isSelected(rowValue);
boolean isEven = absRowIndex % 2 == 0;
StringBuilder trClasses = new StringBuilder(rowStyle);
if (isSelected) {
trClasses.append(selectedRowStyle);
}
// Calculate the cell styles.
String cellStyles = cellStyle;
if (isSelected) {
cellStyles += selectedCellStyle;
}
if(isCommentRow)
cellStyles += childCell;
TableRowBuilder row = startRow();
row.className(trClasses.toString());
/*
* Checkbox column.
*
* This table will uses a checkbox column for selection. Alternatively,
* you can call dataGrid.setSelectionEnabled(true) to enable mouse
* selection.
*/
TableCellBuilder td = row.startTD();
td.className(cellStyles);
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
if (!isCommentRow) {
renderCell(td, createContext(0), cellTable.getColumn(0), rowValue);
}
td.endTD();
/*
* View children column.
*
* Displays a link to "show children". When clicked, the list of friends is
* displayed below the contact.
*/
td = row.startTD();
td.className(cellStyles);
if(!isCommentRow) {
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
if(rowValue.hasComments())
//td.className(CellTableResource.INSTANCE.dataGridStyle().showChildren());
renderCell(td, createContext(1), cellTable.getColumn(1), rowValue);
} else {
td.colSpan(getColumns().size() - 1);
// // Draw sub-table header
TableBuilder subTable = td.startTable();
TableSectionBuilder subTableSection = subTable.startTHead();
TableRowBuilder tr2 = subTableSection.startTR();
TableCellBuilder td2 = tr2.startTH();
td2.text(msgs.date());
tr2.endTH();
td2 = tr2.startTH();
td2.text(msgs.username());
tr2.endTH();
td2 = tr2.startTH();
td2.text(msgs.comment());
tr2.endTH();
td2 = tr2.startTH();
td2.text(msgs.actions());
tr2.endTH();
subTableSection.endTR();
subTable.endTHead();
subTableSection = subTable.startTBody();
for(final EntityComment ec : rowValue.getCommentList()) {
tr2 = subTableSection.startTR();
// Date
td2 = tr2.startTD();
td2.text(DateUtil.getDefaultDateTimeFormat().format(ec.getCreationDate()));
tr2.endTD();
// Username
td2 = tr2.startTD();
td2.text(ec.getUsername());
tr2.endTD();
// Text
td2 = tr2.startTD();
td2.text(ec.getText());
tr2.endTD();
// Actions
td2 = tr2.startTD();
// Remove
Anchor removeAnchor = new Anchor("remove");
removeAnchor.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
Window.alert("clicked");
}
});
td2.html(new SafeHtmlBuilder().appendHtmlConstant(removeAnchor.toString()).toSafeHtml());
tr2.endTD();
subTableSection.endTR();
}
subTable.endTBody();
td.endTable();
}
td.endTD();
for(int i = 2; i <= 6; i++) {
// Recorded, list name, callcenter, msisdn
td = row.startTD();
td.className(cellStyles);
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
if(!isCommentRow) {
renderCell(td, createContext(i), cellTable.getColumn(i), rowValue);
}
td.endTD();
}
row.endTR();
}
子表出现了,锚点在正确的位置,但点击处理程序从未被调用。我不知道如何将处理程序代码写入页面,就像我为渲染锚所做的那样。
谢谢你的帮助。