我需要使用递归在 angular 6 中制作行和列，其中行可以列和列有任意数量的行

Question

我尝试使用动态 HTML 制作它，但我无法在动态 HTML 中调用点击事件。

这是自己试过的

my .ts file
htmlgrid:any;
jsonData:any;
 ngOnInit(){

this.htmlgrid= this.parse(this.jsonData)

}




createRow (r) {
    return '<div  style="background-color : ' + r.color + '" class="row">' +
      (r.text ? r.text : '') + this.parse(r) + '</div>';
  }
  createColumn (c) {
    return '<div style="background - color: red;" class="col-md-' + 6 + ' test">' +
      (c.text ? c.text : '') + this.parse(c) + '<img  click="hell();"  src = "../../../../assets/img/collection.jpg" style = "height: 100px; width:auto;" />' + '</div>';
  }
  parse (s) {
    let S = '';
    if (s.rows) {
      for (let i in s.rows) {
        console.log(s.rows[ i ], 'i of data');
        S += this.createRow(s.rows[ i ]);
      }
    }
    if (s.columns) {
      for (let i in s.columns) {
        S += this.createColumn(s.columns[ i ]);
      }
    }
    console.log(S, 'value of s');
    return S;
  }

My.html 文件

<div class="one" [innerHtml]="htmlToAdd"></div>

这种JSON是用来做行和列的，我们的JSON也有标识符和行列校验。请帮助我被困在这里很糟糕，我需要根据以下 json

制作行列网格

this.jsonData={
"rows":[ 
         { 
            "columns":[ 
               { 
                  "identifier":"c1",
                  "hasRows":false,
                   "cashBack":{ 
                     "text":""
                  },
                  "title":{ 
                     "text":""
                  },
                  "images":{ 
                     "leafBanner":{ 
                        "url":"",
                        "bannerName":"",
                        "bannerType":"",
                        "bannerTarget":""
                     },
                     "listPageBanner":{ 
                        "image":"",
                        "2X":{ 
                           "height":"200px",
                           "width":"400px"
                        },
                        "3X":{ 
                           "height":"300px",
                           "width":"600px"
                        }
                     }
                  },
                  "height":"50",
                  "width":"50"
               },
               { 
                  "identifier":"c2",
                  "hasRows":false,
                  "cashBack":{ 
                     "text":""
                  },
                  "title":{ 
                     "text":""
                  },
                  "images":{ 
                     "leafBanner":{ 
                        "url":"",
                        "bannerName":"",
                        "bannerType":"",
                        "bannerTarget":""
                     },
                     "listPageBanner":{ 
                        "image":"",
                        "2X":{ 
                           "height":"200px",
                           "width":"400px"
                        },
                        "3X":{ 
                           "height":"300px",
                           "width":"600px"
                        }
                     }
                  },
                  "height":"50",
                  "width":"50"
               }
            ]
         },
         { 
            "columns":[ 
               { 
                  "identifier":"c3",
                  "hasRows":false,
                   "cashBack":{ 
                     "text":""
                  },
                  "title":{ 
                     "text":""
                  },
                  "images":{ 
                     "leafBanner":{ 
                        "url":"",
                        "bannerName":"",
                        "bannerType":"",
                        "bannerTarget":""
                     },
                     "listPageBanner":{ 
                        "image":"",
                        "2X":{ 
                           "height":"200px",
                           "width":"400px"
                        },
                        "3X":{ 
                           "height":"300px",
                           "width":"600px"
                        }
                     }
                  },
                  "height":"33",
                  "width":"33"
               },
               { 
                  "identifier":"c4",
                  "hasRows":false,
                   "cashBack":{ 
                     "text":""
                  },
                  "title":{ 
                     "text":""
                  },
                  "images":{ 
                     "leafBanner":{ 
                        "url":"",
                        "bannerName":"",
                        "bannerType":"",
                        "bannerTarget":""
                     },
                     "listPageBanner":{ 
                        "image":"",
                        "2X":{ 
                           "height":"200px",
                           "width":"400px"
                        },
                        "3X":{ 
                           "height":"300px",
                           "width":"600px"
                        }
                     }
                  },
                  "height":"33",
                  "width":"33"
               },
               { 
                  "identifier":"c5",
                  "hasRows":false,
                   "cashBack":{ 
                     "text":""
                  },
                  "title":{ 
                     "text":""
                  },
                  "images":{ 
                     "leafBanner":{ 
                        "url":"",
                        "bannerName":"",
                        "bannerType":"",
                        "bannerTarget":""
                     },
                     "listPageBanner":{ 
                        "image":"",
                        "2X":{ 
                           "height":"200px",
                           "width":"400px"
                        },
                        "3X":{ 
                           "height":"300px",
                           "width":"600px"
                        }
                     }
                  },
                  "height":"33",
                  "width":"33"
               }
            ]
         }
      ]
}

Answer 1

您可以定义一个组件来生成您的 html 并且您可以递归调用它

@Component({
  selector: "grid",
  template: `
    <ng-container [ngSwitch]="(data | keyvalue)[0].key">
      <ng-container *ngSwitchCase="'rows'">
        <div class="row" *ngFor="let row of data.rows">
          <grid [data]="row"></grid>
        </div>
      </ng-container>
      <ng-container *ngSwitchCase="'columns'">
        <div class="col" *ngFor="let col of data.columns">
          <grid [data]="col"></grid>
        </div>
      </ng-container>
      <ng-container *ngSwitchDefault>
        <grid [data]="data.rows" *ngIf="data.hasRows; else cell"></grid>
        <ng-template #cell>
          <div class="cell">{{ data | json }}</div>
        </ng-template>
      </ng-container>
    </ng-container>
  `,
  styles: [
    ".row{background-color:red;padding: 5px;}",
    ".col{background-color:green; padding:5px;}",
    ".cell{background-color:cyan;padding:5px;}"
  ]
})
export class GridComponent {
  @Input()
  data: any;
}

您可以像这样从 app/display 组件中调用此网格组件

<grid [data]="jsonData"></grid>

这是一个良好的开端，您可以修改默认的 switch case 以满足您的需求我刚刚在您的 json 中找到了一个属性 hasRows 如果是这样，它将递归调用网格组件又回来了。

希望对您有所帮助，Stackblitz 供您参考：https://stackblitz.com/edit/angular-6cqbsg

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