Angular 2-ngModel不檢查復選框

Question

我正在嘗試創建具有性別，男性和其他（caitlyn jenner之類的東西）的性別選擇視圖。

我目前所擁有的是：

在復選框的標簽旁邊放置SVG（復選框將在生產環境中隱藏，現在在plunkr中可見以進行調試）

但是，當我單擊“女性”時，它會將焦點更改為復選框，而不是選中它。

Plunkr： http ：//plnkr.co/edit/Z0Dq2sfJaBrE6Mae2Kg1？p = info

碼：

的CSS

svg { 
  width: 15px; height: 15px;

  border: 2px solid #a13b4a;
}
label {
  display: inline-block;
  padding-left: 1.5em;
  position: relative;
  cursor: pointer;
  color: black;

}
input[type="checkbox"] {
  opacity: 0;
  width: 15px;
  height: 15px;
}
label svg path {
  transition: stroke-dashoffset .4s linear;
}
input[type="checkbox"]:checked ~ label svg path {
  stroke-dashoffset: 0;
}
input[type="checkbox"]:checked ~ label {
  color: #a13b4a;
}

html

 <div>
                            <input type="checkbox" id="male" [(ngModel)]="isMale" name="isMale"/>
                            <label (click)="select('male')" for="male">Male
                                <svg (click)="select('male')" viewBox="0 0 60 40" xmlns="http://www.w3.org/2000/svg"><path d="M21,2 C13.4580219,4.16027394 
                                1.62349378,18.3117469 3,19 C9.03653312,22.0182666 25.2482171,10.3758914 30,8 C32.9363621,6.53181896 
                                41.321398,1.67860195 39,4 C36.1186011,6.88139893.11316157,27.1131616 5,29 C10.3223659,34.3223659 
                                30.6434647,19.7426141 35,18 C41.2281047,15.5087581 46.3445303,13.6554697 
                                46,14 C42.8258073,17.1741927 36.9154967,19.650702 33,22 C30.3136243,23.6118254 17,31.162498 
                                17,34 C17,40.4724865 54,12.4064021 54,17 
                                C54,23.7416728 34,27.2286213 34,37"
                                id="male-path" stroke-width="4" fill="none" stroke="#a14b4a" stroke-dasharray="270" stroke-dashoffset="270"></path></svg>
                            </label>
                        </div>
                        <div>
                            <input type="checkbox" id="female" [(ngModel)]="isFemale" [checked]="isFemale" name="isFemale"/>
                            <label for="female" (click)="select('female')">Female
                                <svg (click)="select('female')" viewBox="0 0 60 40" xmlns="http://www.w3.org/2000/svg"><path d="M21,2 C13.4580219,4.16027394 
                                1.62349378,18.3117469 3,19 C9.03653312,22.0182666 25.2482171,10.3758914 30,8 C32.9363621,6.53181896 
                                41.321398,1.67860195 39,4 C36.1186011,6.88139893.11316157,27.1131616 5,29 C10.3223659,34.3223659 
                                30.6434647,19.7426141 35,18 C41.2281047,15.5087581 46.3445303,13.6554697 
                                46,14 C42.8258073,17.1741927 36.9154967,19.650702 33,22 C30.3136243,23.6118254 17,31.162498 
                                17,34 C17,40.4724865 54,12.4064021 54,17 
                                C54,23.7416728 34,27.2286213 34,37"
                                id="female-path" stroke-width="4" fill="none" stroke="#a14b4a" stroke-dasharray="270" stroke-dashoffset="270"></path></svg>
                            </label>  
                        </div>
                        <div>
                            <input type="checkbox" id="other" [(ngModel)]="isOther" name="isOther"/>
                            <label for="other" (click)="select('other')">Other
                                <svg (click)="select('other')" viewBox="0 0 60 40" xmlns="http://www.w3.org/2000/svg"><path d="M21,2 C13.4580219,4.16027394 
                                1.62349378,18.3117469 3,19 C9.03653312,22.0182666 25.2482171,10.3758914 30,8 C32.9363621,6.53181896 
                                41.321398,1.67860195 39,4 C36.1186011,6.88139893.11316157,27.1131616 5,29 C10.3223659,34.3223659 
                                30.6434647,19.7426141 35,18 C41.2281047,15.5087581 46.3445303,13.6554697 
                                46,14 C42.8258073,17.1741927 36.9154967,19.650702 33,22 C30.3136243,23.6118254 17,31.162498 
                                17,34 C17,40.4724865 54,12.4064021 54,17 
                                C54,23.7416728 34,27.2286213 34,37"
                                id="other-path" stroke-width="4" fill="none" stroke="#a14b4a" stroke-dasharray="270" stroke-dashoffset="270"></path></svg>
                            </label>
                        </div>

TS

public isMale:boolean;
  public isFemale:boolean;
  public isOther:boolean;

  constructor() {
    this.isMale = true;
    this.isFemale = false;
    this.isOther = false;

  }
     select(gender:string){
        console.log("switch");
        switch(gender){
            case 'male': {
                console.log("male");
                this.isMale = true;
                this.isOther = false;
                this.isFemale = false;

                break;
            }
            case 'female' : {console.log("female");
                this.isFemale = true;
                this.isOther = false;
                this.isMale = false;

                break;
            }
            default: {console.log("default");
                this.isFemale = false;
                this.isMale = false;
                this.isOther = true;
            }
        }
        console.log("status: male:"+this.isMale+";;female:"+this.isFemale+";;other:"+this.isOther);
    }

Answer 1

您的實現有兩個問題。

1. 您不想在此處使用[(ngModel)] ，因為您正在從控制器更新值。 只需使用[checked]指令將狀態反映到復選框即可
2. 您不想在此處使用“ for”屬性，因為您已經定義了對標簽的單擊。 這將觸發2次點擊，而不是1次點擊（“ for”屬性為1次， (click)事件為1次）

我用一個可行的例子更新了您的朋克

http://plnkr.co/edit/y8qAbkBljG1TbVu5TKMX?p=preview

Answer 2

.html

<input type="radio" name="radioOption" [(ngModel)]="option" id="radio1" value="1"/>

<input type="radio" name="radioOption" [(ngModel)]="option" id="radio2" value="2" />

.ts

export class PaymentMethodComponent implements OnInit {
  option: string;

  constructor() {
    this.option= '1'
  }

}

您需要設置變量的值，即option = 1然后默認情況下將根據提供的值選中您的復選框/單選按鈕。

注意：確保對單選按鈕進行分組，保持名稱與按名稱分組相同。