primeng allows for implementing a table filter functionality with a dropdown selection

I am working with a p-table from primeng and attempting to synchronize the selection from the dropdown menu with the filter method of the table, but I have not been successful in achieving this. Could you please help me identify the issue?

<p-table
    #customTable
    id="customTable"
    [value]="allCustomConfig$ | async"
    [paginator]="(allCustomConfig$ | async)?.length > 10"
    [rows]="10"
    [rowsPerPageOptions]="[10, 25, 50]"
    selectionMode="single"
    [scrollable]="true">
    <ng-template pTemplate="header">
      <tr class="tr-head-title">
        <th scope="col" class="th-title-actions">
          {{ 'features.masters.analytics_config.table.actions' | translate }}
        </th>
        <th scope="col" class="th-title-custom">
          {{ 'features.masters.analytics_config.table.analytics' | translate }}
          <!-- <p-sortIcon field="analytics"></p-sortIcon> -->
        </th>
        <th scope="col" pSortableColumn="translation" class="th-title-translation">
          {{ 'features.masters.analytics_config.table.translation' | translate }}
          <p-sortIcon field="translation"></p-sortIcon>
        </th>
      </tr>
      <tr>
        <th scope="col"></th>
        <th scope="col">
          <p-dropdown
            (onClear)="filterTable()"
            (onHide)="filterTable()"
            [(ngModel)]="CustomConfigSelect"
            [options]="customDropdown"
            optionLabel="analytics"
            [placeholder]="'features.masters.analytics_config.modal.analytics_placeholder' | translate"
            [showClear]="true"
            filterMode="contains">
          </p-dropdown>
        </th>
        <th scope="col"></th>
      </tr>
    </ng-template>
    <ng-template pTemplate="body" let-config>
      <tr class="tr-body">
        <td class="td-buttons">
          <button
            (click)="editCustomConfigModal(config)"
            class="p-button-rounded p-button-outlined p-button-warning btn"
            icon="pi pi-pencil"
            pButton
            type="button"></button>
          <button
            (click)="deleteCustomConfig(config)"
            class="p-button-rounded p-button-outlined p-button-danger btn"
            style="margin-left: 10px"
            icon="pi pi-trash"
            pButton
            type="button"></button>
        </td>
        <td>
          {{ config?.featureFaultDescription?.analytics }}
        </td>
        <td>
          {{ config?.translation }}
        </td>
      </tr>
    </ng-template>

    <!-- Empty Message -->
    <ng-template pTemplate="emptymessage">
      <tr>
        <!-- <td colspan="6">No custom configurations found.</td> -->
      </tr>
    </ng-template>
  </p-table>
</p-card>

and this method in my class component

public customDropdown: FeatureFaultDescription[] = [
   { analytics: 'string a', featureFaultDescriptionId: 1 },
   { analytics: 'string b', featureFaultDescriptionId: 2 },
   { analytics: 'string c', featureFaultDescriptionId: 3 },
   { analytics: 'string e', featureFaultDescriptionId: 4 }
 ];
public CustomConfigSelect: FeatureFaultDescription;


public filterTable(): void {
   if (this.CustomConfigSelect) {
     this.table?.filter(
       this.CustomConfigSelect,
       'CustomConfigSelect',
       'contains'
     );
   } else {
     this.table.reset();
   }
 }

Can you see where the problem lies? I am trying to match the selection from the dropdown within the <ng-template pTemplate="header"> so that only the selected item is displayed in the table.

Answer №1

  1. update the options interface to {label: string, value: any} from
    { analytics: string, featureFaultDescriptionId: number }
  2. set showClear to "CustomConfigSelect" instead of just "true"
  3. attempt to call the filterTable function with the onChange event of the dropdown component
  4. utilize the emitted event like filterTable($event) for table filtering, rather than using this.CustomConfigSelect

also, make sure to specify the version of primeng as it can aid in troubleshooting.

Answer №2

The solution I discovered is now functioning flawlessly

public updateTableFilter(): void {
    if (this.FeatureFaultDescriptionSelect) {
      this.table?.filter(
        this.FeatureFaultDescriptionSelect?.featureFaultDescriptionId,
        'featureFaultDescription.featureFaultDescriptionId',
        'contains'
      );
    } else {
      this.table.reset();
    }
  }

It even works in the following way

this.table?.filter(
        this.FeatureFaultDescriptionSelect?.analytics,
        'featureFaultDescription.analytics',
        'contains'
      );

In the filter method of the table, the value and field must align

Table.filter(value: any, field: string, matchMode: string): 

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