概述:
我使用动态 GXT ListField 列出数据库中某个位置的所有批准者并预先选择选定的批准者(isSelected==true)。
问题:
看起来商店有正确的数据并在列表中选择了正确的序数,但可见 ListField 中的数据仍然显示第一次加载 ListField 时的数据。我无法刷新列表 UI 以显示来自第二个位置的项目。
例子:
位置1:
所有批准人={a,b,c,d,e,f,g,h,i,j}
选定的批准者 = {a,b,c}
display={ [a],[b],[c] ,d,e,f,g,h,i,j} 其中[] = 选中
位置2:
所有批准人={x,y,z,l,m,n,o,p,q,r}
选定的批准者 = {x,y,z,l}
display={ [a],[b],[c],[d] ,e,f,g,h,i,j} 其中 [] = 选中(错误!)
预期 = { [x],[y],[z],[l] ,m,n,o,p,q,r}
注意:它现在选择了4,这意味着它使用了正确的商店,尽管显示仍然显示 location1 数据:(
代码:
ListField<Approver>() approversListField ;
OnModuleload() //..not including for simplicity
{
:
panel.add(getInitialApproverList());
loadApprovers(1);
loadApprovers(2);
}
private Widget getInitialApproverList() {
approversListField = new ListField<Approver>();
approversListField.setEmptyText("employee last name");
approversListField.setTemplate(getApproverTemplate());
approversListField.setFieldLabel("Approvers *");
approversListField.setId("approvers");
approversListField.setEmptyText("No approvers available.");
return approversListField;
}
private void loadApprovers(int locationID) {
ListStore<Approver> approversStore = dataStores.getApprovers(locationID);
approversListField.setStore(approversStore);
approversListField.setValueField("userID");
approversStore.addStoreListener(new StoreListener<Approver>() {
@Override
public void storeDataChanged(StoreEvent<Approver> se) {
super.storeDataChanged(se);
approversListField.fireEvent(Events.Render);
}
});
/**
* // * Attach render listener, had to do it on render because select()
* // * method only works onrender // *
* http://www.sencha.com/forum/showthread.php?55659-Selecting-Items-in-ListField-After-Load // *
*/
approversListField.addListener(Events.Render, new Listener<BaseEvent>() {
@Override
public void handleEvent(BaseEvent be) {
ListViewSelectionModel<Approver> approverListFieldSelectionModel = approversListField.getListView()
.getSelectionModel();
approversListField.getListView().refresh();
approverListFieldSelectionModel.deselectAll();
System.out.println("approversStore size:"+approversListField.getStore().getCount());
for (int i = 0; i < approversListField.getStore().getCount(); i++) {
Approver app = approversListField.getStore().getAt(i);
System.out.println(app);
if (app.isSelected() == true) {
System.out.println("FOUND THE APPROVER! " + i);
approverListFieldSelectionModel.select(app, true);
}
}
}
});
}