How to use paginator from material angular

Question

I m new to angular and trying to implement pagination in my app  I am trying to use this material component   With the code below  I can get length  pagesize  and pageSizeOptions in my  ts file   lt md-paginator  length   length                 pageSize   pageSize                 pageSizeOptions   pageSizeOptions   lt  md-paginator gt    export class PaginatorConfigurableExample      length   100    pageSize   10    pageSizeOptions    5  10  25  100            but I can t seem to trigger a function to change the data on the table above when the page is changed  Also  how do I use the nextPage  previousPage  hasNextPage  and hasPreviousPage methods

User · Answer

After spending few hours on this i think this is best way to apply pagination. And more importantly it works. This is my paginator code <mat-paginator #paginatoR [length]="length" [pageSize]="pageSize" [pageSizeOptions]="pageSizeOptions">

Inside my component @ViewChild(MatPaginator) paginator: MatPaginator; to view child and finally you have to bind paginator to table dataSource and this is how it is done ngAfterViewInit() {this.dataSource.paginator = this.paginator;} Easy right? if it works for you then mark this as answer.

User · Answer

I m struggling with the same here  But I can show you what I ve got doing some research  Basically  you first start adding the page  Output event in the foo template ts     lt md-paginator  paginator                  length   length                   pageIndex   pageIndex                   pageSize   pageSize                   pageSizeOptions    5  10  25  100                    page   pageEvent   getServerData  event                    gt    lt  md-paginator gt    And later  you have to add the pageEvent attribute in the foo component ts class and the others to handle paginator requirements   pageEvent  PageEvent  datasource  null  pageIndex number  pageSize number  length number    And add the method that will fetch the server data   ngOnInit        getServerData null         public getServerData event  PageEvent     this fooService getdata event  subscribe      response   gt         if response error               handle error         else           this datasource   response data          this pageIndex   response pageIndex          this pageSize   response pageSize          this length   response length                     error   gt            handle error              return event      So  basically every time you click the paginator  you ll activate getServerData     method that will call foo service ts getting all data required  In this case  you do not need to handle nextPage and nextXXX events because it will be automatically calculated upon view rendering   Hope this can help you  Let me know if you had success

User · Answer

The issue in the original question is that you are not capturing  page  event  to resolve this you need to add  page   yourEventHandler  event   as an attribute in the md-paginator tag   check a working example here  You can also check the API docs here

User · Answer

This issue is resolved after spending few hours and i got it working  which is believe is the simplest way to solve the pagination with angular material   - Do first start by working on  component html  file    lt mat-paginator  pageSizeOptions    2  5  10  15  20   showFirstLastButtons gt    lt  mat-paginator gt    and do in the  component ts  file   import   MatPaginator   from   angular material paginator    import   Component  OnInit  ViewChild   from   angular core     export interface UserData    full name  string   email  string   mob number  string       export class UserManagementComponent implements OnInit    dataSource   MatTableDataSource lt UserData gt       ViewChild MatPaginator  paginator  MatPaginator     constructor        this userList              ngOnInit           public userList         this  userManagementService userListing   subscribe        response   gt           console log response  results           this dataSource   new MatTableDataSource lt UserData gt  response  results           this dataSource paginator   this paginator        console log this dataSource                    error   gt                     Remember Must import the pagination module in your currently working module module ts  file     import  MatPaginatorModule  from   angular material paginator        NgModule         imports   MatPaginatorModule           Hope it will Work for you

User · Answer

Component   import   Component   AfterViewInit  ViewChild   from  angular core  import   MatPaginator   from  angular material   export class ClassName implements AfterViewInit        ViewChild MatPaginator  paginator  MatPaginator      length   1000      pageSize   10      pageSizeOptions  number      5  10  25  100        ngAfterViewInit             this paginator page subscribe              event    gt  console log event             HTML   lt mat-paginator      length   length      pageSize   pageSize       pageSizeOptions   pageSizeOptions      showFirstLastButtons   true  gt   lt  mat-paginator gt

User · Answer

The tricky part here is to handle is the page event  We can follow angular material documentation up to defining page event function  Visit https   material angular io components paginator examples for the reference  I will add my work with hours of hard work in this regard  in the relevant HTML file should look like as follows   lt pre gt   lt mat-paginator      pageSizeOptions   quot pageSizeOptions quot       pageSize   quot Size quot       page   quot pageEvent   pageNavigations  event  quot       length   quot recordCount quot  gt   lt  mat-paginator gt   lt  pre gt   Then go to the relevant typescript file and following code  declarations   Input  data   customers  Observable lt Customer   gt   pageEvent  PageEvent  Page  number 0  Size  number 2  recordCount  number  pageSizeOptions  number      2 3 4 5    The key part of page navigation as follows  pageNavigations event    PageEvent       console log event       this Page   event pageIndex      this Size   event pageSize      this reloadData         We require the following function to call data from the backend  reloadData          this customers   this customerService setPageSize this Page  this Size       this customerService getSize   subscribe res   gt          this recordCount   Number res               console log this recordCount                Before the aforementioned implementation  our services file should contain the following service call setPageSize page  number  size  number   Observable lt any gt        return this http get    this baseUrl  pageSize   size  amp pageNo   page          Then all set to go and enable pagination in our app  Feel free to ask related questions thank you

User · Answer

based on Wesley Coetzee s answer i wrote this  Hope it can help anyone googling this issue  I had bugs with swapping the paginator size in the middle of the list that s why i submit my answer  Paginator html and list  lt mat-paginator  length   quot localNewspapers length quot  pageSize 20                 page   quot getPaginatorData  event  quot   pageSizeOptions   quot  10  20  30  quot                 showFirstLastButtons  quot false quot  gt   lt  mat-paginator gt   lt mat-list gt      lt app-newspaper-pagi-item  ngFor  quot let paper of  localNewspapers                             slice  lowValue   highValue  quot                            newspaper   quot paper quot  gt      lt  app-newspaper-pagi-item gt      Component logic import  Component  Input  OnInit  from  quot  angular core quot   import  PageEvent  from  quot  angular material quot     Component     selector   app-uniques-newspaper-list     templateUrl     newspaper-uniques-list component html      export class NewspaperUniquesListComponent implements OnInit     lowValue  number   0    highValue  number   20        used to build an array of papers relevant at any given time   public getPaginatorData event  PageEvent   PageEvent       this lowValue   event pageIndex   event pageSize      this highValue   this lowValue   event pageSize      return event

User · Answer

Hey so I stumbled upon this and got it working  here is how   inside my component html   lt mat-paginator  paginator  pageSize   pageSize   pageSizeOptions    5  10  20    showFirstLastButtons   true   length   totalSize       pageIndex   currentPage   page   pageEvent   handlePage  event   gt   lt  mat-paginator gt    Inside my component ts  public array  any  public displayedColumns                         public dataSource  any       public pageSize   10  public currentPage   0  public totalSize   0    ViewChild MatPaginator  paginator  MatPaginator   constructor private app  AppService       ngOnInit       this getArray       public handlePage e  any      this currentPage   e pageIndex    this pageSize   e pageSize    this iterator       private getArray       this app getDeliveries        subscribe  response    gt          this dataSource   new MatTableDataSource lt Element gt  response         this dataSource paginator   this paginator        this array   response        this totalSize   this array length        this iterator               private iterator       const end    this currentPage   1    this pageSize    const start   this currentPage   this pageSize    const part   this array slice start  end     this dataSource   part      All the paging work is done from within the iterator method  This method works out the skip and take and assigns that to the dataSource for the Material table

User · Answer

Another way to link Angular Paginator with the data table using Slice Pipe Here data is fetched only once from server   View     lt div class  col-md-3   ngFor  let productObj of productListData         slice  lowValue   highValue  gt           actual data dispaly     lt  div gt    lt mat-paginator  length   productListData length   pageSize   pageSize       page   pageEvent   getPaginatorData  event   gt   lt  mat-paginator gt     Component      pageIndex number   0      pageSize number   50      lowValue number   0      highValue number   50            getPaginatorData event        console log event        if event pageIndex     this pageIndex   1           this lowValue   this lowValue   this pageSize          this highValue    this highValue   this pageSize               else if event pageIndex     this pageIndex - 1          this lowValue   this lowValue - this pageSize         this highValue    this highValue - this pageSize                    this pageIndex   event pageIndex

[angular] How to use paginator from material angular?

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[angular] How to use paginator from material angular?

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