Kendo Grid for Angular 2 Reactive FormArray

Question

我在剑道网格示例中没有找到一个好的、简单和透明的表单示例，其中剑道网格作为 formArray，数组的每一行作为表单组，每个单元格作为表单控件

在另一个问题中 在 Angular 2/4 的 KendoUI 网格中进行批量编辑有一个答案，但它不是那么透明。

我无法使这些标签起作用。

<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>

有人做过这种实现吗？

Answer 1

我已经找到了解决方案。这有点笨拙，但效果很好。你必须使用网格的每个单元格模板中的ng-container，将每个剑道网格数据项作为包含在FormArray中的FormGroup来处理。就我而言，我从外部服务请求数据，但如果您在本地拥有数据，则几乎相同。 这个FormArray也可以放在一个更大的FormGroup内，但为了简单起见，我把它作为一个属性。

父组件.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
};
});
}