Kendo Grid for Angular 2 Reactive FormArray

Question

我没有在Kendo网格示例中找到一个好的，简单透明的表单，其中一个表单使用kendo网格作为formArray，并且数组的每一行作为表单组，每个单元格作为formcontrol

在另一个问题Batch editing in KendoUI Grid for Angular 2/4有一个答案，但它不是那么透明。

我不能让那些标签工作。

  <form [formGroup]="formGroup"><kendo-grid
  #grid
  [data]="gridData" [formArray]="formArray" formArrayName="arrayGrid" 
  //[formGroup]="gridRow"// how to say each row is in this form group
  [height]="410"
  >
    <ng-template kendoGridToolbarTemplate>
      <button *ngIf="!isEditMode" (click)="editHandler()" class="k-button k-primary">Edit</button>
      <button *ngIf="isEditMode" (click)="saveHandler()" [disabled]="!canSave()" class="k-button">Update</button>
      <button *ngIf="isEditMode" (click)="cancelHandler()" class="k-button">Cancel</button>
    </ng-template>
    <kendo-grid-column field="ProductName" formControlName="ProductName"  title="Name" width="200">
    </kendo-grid-column>
    <kendo-grid-column field="UnitPrice" formControlName="UnitPrice" title="Price" format="{0:c}" width="80" editor="numeric">
    </kendo-grid-column>
    <kendo-grid-column field="UnitsInStock" formControlName="UnitsInStock" title="In stock" width="80" editor="numeric">
    </kendo-grid-column>
</kendo-grid></form>

有没有人做过这种实现？

Answer 1

我找到了解决方案。这有点hacky，但它很好用。您必须使用网格的每个单元格模板中的FormGroup将每个kendo-grid数据项处理为包含在FormArray中的ng-container。在我的情况下，我从外部服务请求数据，但如果你在本地使用它，它几乎是相同的。这个FormArray也可以在更大的FormGroup内，但为了简单起见，我把它作为一个属性。

parent.component.html

<kendo-grid #grid [data]="gridData">
<kendo-grid-column field="firstField" title="ID" width="150">
  <ng-template kendoGridHeaderTemplate>
    <span>First Field</span>
  </ng-template>
  <ng-template kendoGridCellTemplate let-dataItem>
    <ng-container [formGroup]="dataItem">
      <app-my-component formControlName="firstField"></app-my-component>
    </ng-container>
  </ng-template>
</kendo-grid-column>
<kendo-grid-column field="secondField" width="145">
  <ng-template kendoGridHeaderTemplate>
    <span>Second Field</span>
  </ng-template>
  <ng-template kendoGridCellTemplate let-dataItem>
    <ng-container [formGroup]="dataItem">
      <kendo-dropdownlist formControlName="secondField" [valueField]="'id'" [textField]="'text'"></kendo-dropdownlist>
    </ng-container>
  </ng-template>
</kendo-grid-column>

parent.component.ts

import { Component, OnInit, ViewChild } from '@angular/core';
import { GridComponent, GridDataResult } from '@progress/kendo-angular-grid';
import { FormGroup, FormArray, FormBuilder } from '@angular/forms';

 export class ParentComponent implements OnInit {

 @ViewChild(GridComponent) private grid: GridComponent;
  public formArray = this.formBuilder.array([]);
  public gridData: GridDataResult;

  constructor(
    private formBuilder: FormBuilder,
    private service: MyService) {

    super();
  }

  ngOnInit() {
    this.requestData();
  }

  public requestData() {
    const response = this.service.getData().subscribe(data => {
      const that = this;
      response.forEach(function (data, i) {
        that.formArray.insert(i, that.createDataFormGroup(data));
      });

      this.gridData = {
        data: this.formArray.controls,
        total: this.formArray.controls.length
      };
    });
  }