Question

如何从表单中获取值。我试过以下代码：

class EncounterDetailViewController: UIViewController {

    // MARK: - Outlets
    @IBOutlet weak var encounterDateLabel: UILabel!
    @IBOutlet weak var locationLabel: UILabel!
    @IBOutlet weak var lengthLabel: UILabel!
    @IBOutlet weak var contributorNameLabel: UILabel!
    @IBOutlet weak var contributorImageView: UIImageView!

    // MARK: - Properties
    var selectedEncounter: Encounter?

    // MARK: - View did load
    override func viewDidLoad() {
        super.viewDidLoad()
        //access selectedEncounter property here and set all label's text
    }
}

Answer 1

您需要在表单中使用name个属性，以及与ngModel绑定，这些Angular可以跟踪输入元素并将其与表单控件相关联。

<input type="text" placeholder="username" name="username" ngModel>
<input type="password" placeholder="password" name="password" ngModel>

如果没有这些，您的表单对象将只是一个空对象。

<强> DEMO

Answer 2

你应该这样做

<form #f="ngForm" (ngSubmit)="onLogin(f.value)">
    <input type="text" placeholder="username" name="username" ngModel>
    <input type="password" placeholder="password" name="password" ngModel>
    <button type="submit">Submit</button>    
</form>

并且

onLogin(f){
    console.log("username :"+f.username,"password :"+f.password);
}

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2 个答案: