Sorting columns in Angular Material cannot currently be achieved

Incorporating mat sort in two different components using the same approach has led to a discrepancy. It functions perfectly in one component, but fails to work in another due to an unknown reason. Despite ensuring that all properties are consistent and two of them adhere to the correct format, those specific columns remain unsorted.

Below is the code snippet

HTML code

<!-- <section class="content-header">
  <div class="container-fluid">
    <h1>Patient Listing</h1>
  </div>
</section> -->

<mat-form-field appearance="fill">
        <mat-label>Enter a date range</mat-label>
        <mat-date-range-input [formGroup]="dateRangeFormGroup" [rangePicker]="picker" >
            <input matStartDate formControlName="start" placeholder="Start date" [disabled]="true">
            <input matEndDate formControlName="end" placeholder="End date" [disabled]="true">
        </mat-date-range-input>
        <mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
        <mat-date-range-picker #picker disabled="false">
            <mat-date-range-picker-actions>
                <button mat-button matDateRangePickerCancel>Cancel</button>
                <button mat-raised-button color="primary" matDateRangePickerApply (click)="onDateRangeApply()">Apply</button>
              </mat-date-range-picker-actions>
        </mat-date-range-picker>

        <mat-error *ngIf="dateRangeFormGroup.get('start').hasError('matStartDateInvalid')">Invalid start date
        </mat-error>
        <mat-error *ngIf="dateRangeFormGroup.get('end').hasError('matEndDateInvalid')">Invalid end date</mat-error>
</mat-form-field>

<mat-form-field>
    <mat-label>Search</mat-label>
    <input matInput (keyup)="applyFilter($event)" placeholder="Ex. Anything" #input>
  </mat-form-field>


<button class="float-right add-record-btn" mat-raised-button color="primary" (click)="onRecordEdit()">Add
    Record</button>

<!-- Table Structure Here -->

TypeScript (ts) Code

import { Component, OnInit, ViewChild } from '@angular/core';
import { LoadingService } from 'src/app/shared/loading.service';
import { PatientService } from '../patient.service';
import { RecordInformationModel } from 'src/app/models/records/RecordInformationModel';
import { MatTableDataSource } from '@angular/material/table';
import { MatSort } from '@angular/material/sort';
import { MatPaginator } from '@angular/material/paginator';
import { GuidModel } from 'src/app/models/common/GuidModel';
import { MatDialog } from '@angular/material/dialog';

// remaining imported modules here...

@Component({
  selector: 'app-record-list',
  templateUrl: './record-list.component.html',
  styleUrls: ['./record-list.component.scss']
})
export class RecordListComponent implements OnInit {
  
  // Class attributes and methods
  
}

Answer №1

Success! I managed to resolve the issue. After researching on Stack Overflow, I discovered that tables nested under ngif directives may not function properly, so I opted to use the hidden attribute instead. Additionally, ensuring that the name of the cell matches the property is crucial, especially when dealing with complex objects like mine.

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