从 Angular 的 PrimeNG PickList 中删除按钮 [英] Remove buttons from PrimeNG PickList in Angular

问题描述

在下图中，我希望只有单项选择按钮并删除全选按钮(用黑色气泡标记).

我正在使用 PrimeNG Picklist 来生成列表.

有人可以帮我吗?

解决方案

PrimeNg 没有删除按钮的选项.但是我们可以用列表框来做到这一点.

第 1 步:在 app.module.ts 中导入 ListboxModule

import {ListboxModule} from 'primeng/listbox';...进口:[列表框模块...],

第 2 步:app.component.html

<div class="row"><div class="col-md-3"><p-listbox [options]="users" filter="filter" multiple="true" checkbox="true"[style]="{'width':'100%'}" [listStyle]="{'max-height': '200px'}" [metaKeySelection]="false"[(ngModel)]="selectedUserList"></p-listbox>
<div class="col-md-2"><div class="my-2 ml-3"><i class="pi pi-angle-double-right clickable"(click)="moveUserToGroupMember()"></i></div><div class="my-2 ml-3"><i class="pi pi-angle-double-left clickable"(click)="moveGroupToUser()"></i></div>

<div class="col-md-3"><p-listbox [options]="groupUserList" filter="filter" multiple="true" checkbox="true"[style]="{'width':'100%'}" [listStyle]="{'max-height': '200px'}" [metaKeySelection]="false"[(ngModel)]="selectedGroupUsersList"></p-listbox>

第 3 步:app.component.ts 文件，具有选择列表的手动功能

导出类 AppComponent {公共用户 = [];公共组用户列表 = [];公共选择的用户列表:任意；公共selectedGroupUsersList:any;构造函数 AppComponent(){this.users = [{标签:'Ganesh'，值:'3'}，{标签:'约翰'，值:'1'}，{标签:'约书亚'，值:'2'}，];this.groupUserList = [{标签:'Vetri'，值:'5'}，{标签:'湿婆'，值:'6'}，];};moveUserToGroupMember() {this.users.forEach((elem, index) => {this.selectedUserList.forEach((selUser, index) => {如果(selUser === elem.value){this.groupUserList.push(elem);setTimeout(() => {this.removeByAttr(this.users, 'value', selUser);}, 500);}});});}移动组到用户(){this.groupUserList.forEach((elem, index) => {this.selectedGroupUsersList.forEach((selUser, index) => {如果(selUser === elem.value){this.users.unshift(elem);setTimeout(() => {this.removeByAttr(this.groupUserList, 'value', selUser);}, 500);}});});}removeByAttr = (arr, attr, value) =>{让我 = arr.length;当我 - ) {如果 (arr[i]&&arr[i].hasOwnProperty(attr)&&(this.users.length > 0 && arr[i][attr] === 值)) {arr.splice(i, 1);}}返回 arr;}}

您可以从 selectedUserList:any 和 selectedGroupUserList:any 中获取选定用户.就是这样，您现在可以将用户从一个列表移动到另一个列表.

更多参考:

helperscript.com

演示图片

In the following image, I would like to have only single-item selection buttons and remove the select all buttons (marked by the black bubbles).

I am using PrimeNG Picklist to generate the list.

Could anyone help me?

解决方案

PrimeNg have no option to remove buttons. But we can do it with listbox.

step 1: Import ListboxModule in app.module.ts

import {ListboxModule} from 'primeng/listbox';
...
imports: [
ListboxModule
...
],

Step 2: app.component.html

<div class="container-fluid">
<div class="row">
    <div class="col-md-3">
        <p-listbox [options]="users" filter="filter" multiple="true" checkbox="true"
        [style]="{'width':'100%'}" [listStyle]="{'max-height': '200px'}" [metaKeySelection]="false"
        [(ngModel)]="selectedUserList"></p-listbox>
    </div>
    <div class="col-md-2">
        <div class="my-2 ml-3"><i class="pi pi-angle-double-right clickable"
            (click)="moveUserToGroupMember()"></i></div>
        <div class="my-2 ml-3"><i class="pi pi-angle-double-left clickable" 
            (click)="moveGroupToUser()"></i></div>
    </div>
    <div class="col-md-3">
        <p-listbox [options]="groupUserList" filter="filter" multiple="true" checkbox="true"
        [style]="{'width':'100%'}" [listStyle]="{'max-height': '200px'}" [metaKeySelection]="false"
        [(ngModel)]="selectedGroupUsersList"></p-listbox>
    </div>
</div>

Step 3: app.component.ts file with manual functionality of picklist

export class AppComponent {
public users = [];
public groupUserList = [];
public selectedUserList:any;
public selectedGroupUsersList:any;
constructor AppComponent(){
this.users = [
    { label: 'Ganesh', value: '3' },
    { label: 'John', value: '1' },
    { label: 'Joshua', value: '2' },


  ];
  this.groupUserList = [
    { label: 'Vetri', value: '5' },
    { label: 'shiva', value: '6' },
  ];
};


  moveUserToGroupMember() {
    this.users.forEach((elem, index) => {
      this.selectedUserList.forEach((selUser, indexes) => {
        if (selUser === elem.value) {
          this.groupUserList.push(elem);
          setTimeout(() => {
            this.removeByAttr(this.users, 'value', selUser);
          }, 500);
        }
      });
    });
  }
  moveGroupToUser() {
    this.groupUserList.forEach((elem, index) => {
      this.selectedGroupUsersList.forEach((selUser, indexes) => {
        if (selUser === elem.value) {
          this.users.unshift(elem);
          setTimeout(() => {
            this.removeByAttr(this.groupUserList, 'value', selUser);
          }, 500);
        }
      });
    });
  }

  removeByAttr = (arr, attr, value) => {
    let i = arr.length;
    while (i--) {
      if (arr[i]
        && arr[i].hasOwnProperty(attr)
        && (this.users.length > 0 && arr[i][attr] === value)) {

        arr.splice(i, 1);

      }
    }
    return arr;
  }

}

You can get selected Users from selectedUserList:any and selectedGroupUserList:any. That’s it now you can able to move users from one list to another list.

For More Reference :

helperscript.com

Demo image

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