javascript - sapui5复杂数据绑定(bind)

我有以下JSON模型：

{
    "Auctions": [{
        "AuctionsTypes": [{
            "AuctionType": "Contract",
            "Auctions": [{
                "AuctionID": "12345"
            }, {
                "AuctionID": "54321"
            }]
        },{
            "AuctionType": "Delivery",
            "Auctions": [{
                "AuctionID": "12345"
            }, {
                "AuctionID": "54321"
            }]
        }]
    }]
}

我的JS：

var oAuctionsModel = new sap.ui.model.json.JSONModel();
oAuctionsModel.loadData("model/mock_auction_types.json");
oView.setModel(oAuctionsModel, "auctions");

我想在列表中输出AuctionsType，但是此代码不起作用。列表为空。

<List id="idListAuctions" items="{auctions>/Auctions/AuctionsTypes}">
  <items>
    <StandardListItem title="{auctions>AuctionType}" type="Navigation" press="doSomething" />
  </items>
</List>

最佳答案

在您的数据中，Auctions本身就是一个数组，因此您必须指定要访问的数组元素。

在您的示例中，第一个：

<List items="{auctions>/Auctions/0/AuctionsTypes}">
    <StandardListItem title="{auctions>AuctionType}" />
</List>