Angular 5 + ng2-smart-table: Hide/disable actions column conditionally

问题

I have a table built by ng2-smart-table, data in the table has two states as Draft and Ready. When data.status = 'Draft', it's possible to show actions column for CRUD purpose, but then the state changes to data.status = 'Ready', I want to disabled the actions column. How to do this conditionally?

table setting:

  tableSettings = {
    add: {
      addButtonContent: '<i class="fas fa-plus fa-fw"></i>',
      createButtonContent: '<i class="fas fa-plus fa-fw"></i>',
      cancelButtonContent: '<i class="fas fa-times fa-fw"></i>',
      confirmCreate: true
    },
    edit: {
      editButtonContent: '<i class="fas fa-pencil-alt fa-fw"></i>',
      saveButtonContent: '<i class="fas fa-check fa-fw"></i>',
      cancelButtonContent: '<i class="fas fa-times fa-fw"></i>',
      confirmSave: true
    },
    delete: {
      deleteButtonContent: '<i class="far fa-trash-alt fa-fw"></i>',
      confirmDelete: true
    },

    columns: {
      title: {
        title: 'Title',
        type: 'text',
        filter: false,
      },
      description: {
        title: 'description',
        type: 'text',
        filter: false,
      }
    }
  };

ngOnInit() {
  this.apiService.getData.subscribe((res: any) => {
    this.data = res;
    console.log(this.data.status);
  });
}

回答1:

I will customization by myself.

settings = {
    columns: {
        name: {
            title: 'Name',
            filter: true
        }
    },
    mode: 'external',
    actions: {
        delete: false,
        add: false,
        position: 'right'
    },
    rowClassFunction: (row) => {
        var curUserId = localStorage.getItem('user_id');
        if(row.data.createdBy == parseInt(curUserId)){
            return '';
        } else {
            return 'hide-action';
        }
    },
    edit: {
        editButtonContent: '<i class="ti-pencil text-info m-r-10"></i>'
    }
};
source = new LocalDataSource([{name:'Jai', createdBy:12}, {name:'Jack', createdBy:63}])

add your css file

.hide-action td.ng2-smart-actions a {
    display: none;
}

My requirement is use edit authorized user.

回答2:

Very Useful tips for hidding edit and delete icons (ngx-smart-table) Add this to your component css

:host /deep/ ng2-smart-table table > tbody > tr.hide-action > td > ng2-st-tbody-edit-delete {
  display:none;
  visibility: hidden;
}

回答3:

Follow my approach: First I created a custom action component:

[...]
import { Component, OnInit, Input, Output, EventEmitter } from '@angular/core';
import { ViewCell } from 'ng2-smart-table';


@Component({
  selector: 'ngx-custom-actions',
  template: `
  <div class="btn-group btn-group-sm" role="group">
  <button (click)="doEdit()"
          nbButton
          outline
          status="info"
          size="small"
          [disabled]="!isEditable"
          class="mr-2">
    Editar
  </button>
  <button (click)="doDelete()"
          nbButton
          outline
          status="danger"
          [disabled]="!isEditable"
          size="small">
    Excluir
  </button>
</div>
  `,
})
export class CustomActionsComponent implements ViewCell, OnInit {

  isEditable: boolean;

  @Input() value: string | number;
  @Input() rowData: any;

  @Output() edit: EventEmitter<any> = new EventEmitter();
  @Output() delete: EventEmitter<any> = new EventEmitter();

  ngOnInit() {
    this.isEditable = this.value === 'Draft';
  }

  doEdit() {
    this.edit.emit(this.rowData);
  }
  doDelete() {
    this.delete.emit(this.rowData);
  }

}

Register at module and register at entryComponents!

@NgModule({
  declarations: [FormsEngineListComponent, CustomActionsComponent],
  imports: [
    // others imports
    Ng2SmartTableModule,
  ],
  entryComponents: [
    CustomActionsComponent,
  ],
})
export class FormsEngineModule { }

Use your configuration on your ng2-smart-table

list.component.ts

settings = {
  actions: false,
  hideSubHeader: true,
  columns: {
    id: {
      title: 'ID',
      type: 'number',
    },
    actions: {
      title: 'Ações',
      type: 'custom',
      renderComponent: CustomActionsComponent,
      onComponentInitFunction(instance) {
        instance.edit.subscribe(row => {
          console.log('edit', row);
        });
        instance.delete.subscribe(row => {
          console.log('delete', row);
        });
      },
    }
  },
};

demoData = [
  {id: '122323', actions: 'Draft'},
  {id: '2342342', actions: 'Ready'},
];

ngOnInit() {
  this.source.load(this.demoData);
}

回答4:

maybe a bit late, but in your settings set "actions: false" and this, you can do dynamic with a variable

来源：https://stackoverflow.com/questions/50817642/angular-5-ng2-smart-table-hide-disable-actions-column-conditionally