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我到處搜索過我無法想出解決方案。每次用戶單擊「提交」(該部分工作)時,我都試圖使此代碼顯示圖表。問題隨着用戶點擊多次提交而出現。它多次顯示圖表。我如何讓它刪除最後一張圖並用新圖更新它?如何刪除谷歌圖表並將其替換爲谷歌應用中的新圖表?
function doGet() {
var uiApp = UiApp.createApplication().setTitle("some title");
var grid = uiApp.createGrid(3, 2);
grid.setWidget(0, 0, uiApp.createLabel('Lablel 1'));
grid.setWidget(1, 0, uiApp.createLabel('Lablel 2'));
var panel = uiApp.createVerticalPanel();
panel.add(grid);
var button = uiApp.createButton('submit');
var handler = uiApp.createServerHandler('b');
handler.addCallbackElement(grid);
button.addClickHandler(handler);
panel.add(button);
uiApp.add(panel);
return uiApp;
}
function b(e) {
var app = UiApp.getActiveApplication();
//gets all my chart data
var chart = getchartdata()
//Add chart
app.add(chart)
var uiApp = UiApp.getActiveApplication();
uiApp.close();
return uiApp;
}
感謝Srik正是我所需要的! :) – Herb191
很酷。請記住接受答案 – Srik