Tips for navigating to a specific row within a designated page using the Angular Material table

Question

Tips for navigating to a specific row within a designated page using the Angular Material table

Utilizing angular material, I have set up a table with pagination for displaying data. When a user clicks on a row, they are redirected to another page. To return to the table page, they must click on a button.

The issue arises when the user needs to return to the table page and scroll to the specific row. Currently, this is done using:

document.getElementById(elementId).scrollIntoView()

If the clicked row is not on the first page, the element cannot be found. How can I paginate to the correct page where the row exists?

Furthermore, another problem occurs when a user filters the table and selects a row. If I save the page number, the data will render without the filter applied, causing the page number to be incorrect upon returning to the table page.

javascript angular typescript angular-material

Answer 1

Answer №1

If you plan on navigating to another page, remember to store the information related to pageIndex. This way, when you return to your data table, you can assign this index number to [pageIndex]. Example:

<mat-paginator [length]="length"
          [pageSize]="pageSize"
          [pageSizeOptions]="pageSizeOptions"
          (page)="pageEvent = $event"
          [pageIndex]="pIndex">
</mat-paginator>

In this code snippet, pIndex is a variable defined in my Component. If your pageSize is 10 and pageIndex is 0, then it will display rows 1 to 10...

For further details: https://stackblitz.com/angular/ngdejmepgbr?file=app%2Fpaginator-configurable-example.html

Answer 2

If you plan on navigating to another page, remember to store the information related to pageIndex. This way, when you return to your data table, you can assign this index number to [pageIndex]. Example:

<mat-paginator [length]="length"
          [pageSize]="pageSize"
          [pageSizeOptions]="pageSizeOptions"
          (page)="pageEvent = $event"
          [pageIndex]="pIndex">
</mat-paginator>

In this code snippet, pIndex is a variable defined in my Component. If your pageSize is 10 and pageIndex is 0, then it will display rows 1 to 10...

For further details: https://stackblitz.com/angular/ngdejmepgbr?file=app%2Fpaginator-configurable-example.html

Answer 3

Answer №2

To integrate the paginator with Angular's router, you need to follow these steps:

Assuming your route path is structured like this:

http://my/url/to/table/component?page=2

You can extract the page index from the URL and apply it to the table as shown below:

In your Component Class:

class MyComponent {

  pageIndex = this.activatedRoute.queryParams.pipe(
    map(params => params['page'])
  );

  constructor(activatedRoute: ActivatedRoute) {}
}

In your Template:

<mat-paginator [pageIndex]="pageIndex | async"></mat-paginator>

Now that the table is linked to the URL via the paginator, you also need to update the URL when the user navigates through the table:

In your Template:

<mat-paginator [pageIndex]="pageIndex | async" (page)="pageChange($event)"></mat-paginator>

In your Component Class:

class MyComponent {

  pageIndex = this.activatedRoute.queryParams.pipe(
    map(params => params['page'])
  )

  constructor(activatedRoute: ActivatedRoute, router: Router) {}

  pageChange(e: PageEvent): void {
    this.router.navigate( /* ... */ );
  }
}

By updating the URL as the user interacts with the table, the router can effectively control the table content when navigating back to a previously visited URL.

Answer 4

To integrate the paginator with Angular's router, you need to follow these steps:

Assuming your route path is structured like this:

http://my/url/to/table/component?page=2

You can extract the page index from the URL and apply it to the table as shown below:

In your Component Class:

class MyComponent {

  pageIndex = this.activatedRoute.queryParams.pipe(
    map(params => params['page'])
  );

  constructor(activatedRoute: ActivatedRoute) {}
}

In your Template:

<mat-paginator [pageIndex]="pageIndex | async"></mat-paginator>

Now that the table is linked to the URL via the paginator, you also need to update the URL when the user navigates through the table:

In your Template:

<mat-paginator [pageIndex]="pageIndex | async" (page)="pageChange($event)"></mat-paginator>

In your Component Class:

class MyComponent {

  pageIndex = this.activatedRoute.queryParams.pipe(
    map(params => params['page'])
  )

  constructor(activatedRoute: ActivatedRoute, router: Router) {}

  pageChange(e: PageEvent): void {
    this.router.navigate( /* ... */ );
  }
}

By updating the URL as the user interacts with the table, the router can effectively control the table content when navigating back to a previously visited URL.

Tips for navigating to a specific row within a designated page using the Angular Material table

Answer №1

Answer №2

Similar questions

Modify components in a web application based on the content of a JavaScript variable

What could be causing the fourth tab to not show any data while the first three tabs are functioning as expected?

Creating dummy objects from a specific data type in Typescript for the purpose of testing

The server has sent cookies headers, however, the browser did not store the cookies

Having difficulty identifying the same element during testing

Incorporate an array into a JSON object using AngularJS

Tips for modifying the properties of variables within an array using JavaScript

Arranging Objects in Angular 2 using Pipes

Having trouble making the child process die in NodeJS fork

Want to learn how to create a draggable uploaded image on a canvas, similar to the functionality of Google

Differences between visibility property manipulation in HTML and JS

Guide to implement a confirmation box in PHP

Issues have been encountered with Angular 5 when trying to make required form fields work properly

The animation in Material UI does not smoothly transition with the webkit scrollbar

Local variables are now being refreshed with every modification in the data stored in Cloud Firestore

Unveiling all Gatsby.js routes/endpoints in Cypress tests: A comprehensive guide

Using regular expressions to modify parameter values in a command-line argument between nodes and npm scripts

How can I achieve a fade-in effect whenever the flag image is clicked?

Excessive Function Calls Detected in AngularJS Application

Having issues with the POST method in node.js and express when connecting to a MySQL database