Question

是否可以影响位于两个ng-repeat指令内的div的唯一ID？见下面的例子：

<!--first ng-repeat-->
<div id = "1">
<div id = "2">
<div id = "3">
<div id = "4"> <!--start second array-->
<div id = "5">

预期产出：

<div id = "1">
<div id = "2">
<div id = "3">
<div id = "1"> <!--start second array-->
<div id = "2">

不

var mutableData: NSMutableData = NSMutableData.init();
var currentElementName: NSString = "";

@IBAction func btnDeneme(_ sender: Any) {
    let soapMessage = "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"><soap:Body><CelsiusToFahrenheit xmlns=\"http://www.w3schools.com/xml/\"><Celsius>10</Celsius></CelsiusToFahrenheit></soap:Body></soap:Envelope>"

    let url = "http://www.w3schools.com/xml/tempconvert.asmx?op=CelsiusToFahrenheit"

    let urlStr = NSURL(string: url)

    let request = NSMutableURLRequest(url: urlStr as! URL)

    let msgLength = soapMessage.characters.count

    request.addValue("text/xml; charset=utf-8", forHTTPHeaderField: "Content-Type")
    request.addValue("http://tempuri.org/CelsiusToFahrenheit", forHTTPHeaderField: "SOAPAction")
    request.addValue(String(msgLength), forHTTPHeaderField: "Content-Length")

    request.httpMethod = "POST"

    request.httpBody = soapMessage.data(using: String.Encoding.utf8, allowLossyConversion: false)

    let connection = NSURLConnection.init(request: request as URLRequest, delegate: self)


}

private func connection(connection: NSURLConnection!, didReceiveResponse response: URLResponse!) {
    mutableData.length = 0;
}


private func connection(connection: NSURLConnection!, didReceiveData data: Data!) {
    mutableData.append(data)
    lblSonuc.text = String(describing: data)    }



func connectionDidFinishLoading(connection: NSURLConnection!){
    let response = NSString(data: mutableData as Data, encoding: String.Encoding.utf8.rawValue)
    lblSonuc.text = response as String?
    //let xmlParser = XMLParser(data: mutableData as Data)
    //xmlParser.delegate = self
    //xmlParser.parse()
    //xmlParser.shouldResolveExternalEntities = true;

更新：我不认为track by或$ parent。$ index适用于这个用例，显然我们必须计算每个子数组的长度才能获得精确递增的计数器。我正在尝试两个ng-init的组合。一旦我开始工作，我会更新帖子

Answer 1

我终于开始工作，这是我的尝试：

<div ng-repeat = "item in data" ng-init = "count = 0">
 <div ng-repeat = "sub-item in item" ng-init="count = count + data[$parent.$index -1].length">
    <div id = "{{count+$index+1}}">
 </div>

如果您有更合适的解决方案，请随时编辑

两个ng-repeat的唯一ID（AngularJS）

1 个答案: