【发布时间】:2021-02-19 16:24:16
【问题描述】:
我正在尝试制作一个单元格渲染器,用于使用 Angular 将 IP 地址制作成可点击的 SSH 链接。渲染器组件:
import { Component, OnInit, OnDestroy } from "@angular/core";
import { DomSanitizer, SafeUrl } from "@angular/platform-browser";
import { ICellRendererAngularComp } from "ag-grid-angular";
import { ICellRendererParams } from "ag-grid-community";
const username = "me";
/**
* SSHCellRendererComponent is an AG-Grid cell renderer that provides ssh:// links as content.
*/
@Component({
selector: "ssh-cell-renderer",
styleUrls: ["./ssh-cell-renderer.component.scss"],
templateUrl: "./ssh-cell-renderer.component.html"
})
export class SSHCellRendererComponent implements ICellRendererAngularComp {
/** The IP address or hostname to which the SSH link will point. */
public get value(): string {
return this.val;
}
private val = "";
/** The SSH URL to use. */
public get href(): SafeUrl {
const url = `ssh://${username}@${this.value}`;
return this.sanitizer.bypassSecurityTrustUrl(url);
}
constructor(private readonly sanitizer: DomSanitizer) {}
/** Called by the AG-Grid API at initalization */
public refresh(params: ICellRendererParams): boolean {
this.val = params.value;
return true;
}
/** called after ag-grid is initalized */
public agInit(params: ICellRendererParams): void {
console.log("has value?:", Object.prototype.hasOwnProperty.call(params, "value"));
console.log("getval:", params.getValue());
this.val = params.value;
}
}
然后模板看起来像:
<a [href]="href" target="_blank">{{value}}</a>
它应该是非常基本的,我在AngularJS中基本上完全做到了这一点,但它不起作用。这些单元格最终都包含如下所示的实际内容:
<a href="ssh://me@" target="_blank"></a>
我在agInit 中的那两个console.logs 告诉我原因:
16:34:38.554 has value?: false ssh-cell-renderer.component.ts:62:10
16:34:38.555 getval: undefined ssh-cell-renderer.component.ts:63:10
我不知道agInit(也可能是refresh)是什么类型的对象,但显然不是ICellRendererParams - 和getValue 也无济于事,因为无论如何原因它总是返回undefined。我可以访问data(从那里我可以看到被渲染的值实际上不是undefined),但是如果我想使用“IPv4 地址”列为 SSH 链接制作渲染器,并且一个“IPv6 地址”列,我需要两个几乎相同的组件,这是很多重复的代码。
那么我错过了什么?
【问题讨论】:
标签: angular typescript ag-grid ag-grid-angular ag-grid-ng2