java 如何向 GWT ButtonCell 添加点击处理程序？
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How do I add a click handler to the GWT ButtonCell?
提问by Noor
I created a ButtonCelland a Columnfor it:
我为它创建了一个ButtonCell和一个列：
ButtonCell previewButton = new ButtonCell();
Column<Auction,String> preview = new Column<Auction,String>(previewButton) {
public String getValue(Auction object) {
return "Preview";
}
};
How do I now add a click handler (e.g. ClickHandler) for this ButtonCell?
我现在如何为这个ButtonCell添加一个点击处理程序（例如ClickHandler）？
采纳答案by Jason Terk
The Cell Samplerexample includes use of clickable ButtonCells. Clicks on ButtonCells are handled by setting the FieldUpdaterfor the Column:
在细胞取样例子包括使用可点击ButtonCells的。通过为列设置FieldUpdater来处理对 ButtonCells 的点击：
preview.setFieldUpdater(new FieldUpdater<Auction, String>() {
@Override
public void update(int index, Auction object, String value) {
// The user clicked on the button for the passed auction.
}
});
回答by MihaiS
//Prevent mouse events for table cell
CellPreviewEvent.Handler<Auction > manager = DefaultSelectionEventManager.createBlacklistManager(4);//column number
cellTable.setSelectionModel(selectionModel, manager);
new Column<Auction , String>(new ButtonCell()){
@Override
public String getValue(Auction object) {
return "Preview";
}
@Override
public void onBrowserEvent(Cell.Context context, Element elem, Auction object, NativeEvent event) {
event.preventDefault();
//TODO implement event handling
}
}
