Topic: Datatable with Observable data

john.acb free asked 5 years ago


Expected behavior
Implement Datatable with Observable data and implement Search, Pagination, Sorting

Actual behavior
I can implement Datatable with Observable but can't seem to implement other extra features such as Search, Pagination, Sorting

Resources (screenshots, code snippets etc.)
I tried following the examples provided to implement datatable. Would it be possible to provide an example of how to build a Datatable linked to an Observable with all the extra features mentioned?
https://mdbootstrap.com/docs/angular/tables/datatables/
https://ng-demo.mdbootstrap.com/tables/data-tables


Arkadiusz Idzikowski staff commented 5 years ago

We will add an example that use observables to the documentation page.

Please provide some information about what you tried so far and what was the exact problems with the implementation. It will be easier to help.


john.acb free answered 5 years ago


@Arkadiusz Idzikowski, I am able to implement an Observable by doing the following on the .html file by adding the | async pipe:

<tr *ngFor="let el of elementsObservable | async; let i = index">

I was able to implement Sort but can't seem to get Search to work. It may just the way MdbTableDirective works internally.I have the code exactly setup like in the example provided online:

Within ngOnInit():

this.mdbTable.setDataSource(this.elementsObservable);
this.elementsObservable = this.mdbTable.getDataSource();
this.previous = this.mdbTable.getDataSource();

Method used for search:

searchItems() {
  const prev = this.mdbTable.getDataSource();
  if (!this.searchText) {
    this.mdbTable.setDataSource(this.previous);
    this.elementsObservable = this.mdbTable.getDataSource();
  }
  if (this.searchText) {
    this.elementsObservable = this.mdbTable.searchLocalDataBy(this.searchText);
    this.mdbTable.setDataSource(prev);
  }
}

However when I preform a search, I get a runtime error here: this.elementsObservable = this.mdbTable.searchLocalDataBy(this.searchText); enter image description hereHoping you guys can give some feedback soon with a fully functional Datatable example like [https://ng-demo.mdbootstrap.com/tables/data-tables], but using an Observable as your source of data instead of a static list.

Thanks again



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Status

Answered

Specification of the issue

  • ForumUser: Free
  • Premium support: No
  • Technology: MDB Angular
  • MDB Version: 8.1.1
  • Device: PC
  • Browser: Chrome
  • OS: Windows 10
  • Provided sample code: No
  • Provided link: Yes