Implement a search filter for the <mat-select> component of angular material

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Trying to implement a simple application in angular 2 using angular material.I implemented a simple table with pagination .

I also used mat-select component, but for this i want implement a search filter to type and search the required option from the list.

Below shown is my .html file
<table>
 <tr><td> Department</td>
<td>
  <mat-form-field>
  <mat-select placeholder=" ">
    <mat-option> </mat-option>
    <mat-option *ngFor="let dep of dept" [value]="dep">{{dep}}</mat-option>
  </mat-select>
</mat-form-field><br/>
</td>
</tr>


</table>

<br><br>

<button >Search</button>

<button >Reset</button>

<button >Close</button>


<mat-card>
<div class="example-container mat-elevation-z8">
  <mat-table #table [dataSource]="dataSource">

    <!-- Account No. Column -->
    <ng-container matColumnDef="accno">
      <mat-header-cell *matHeaderCellDef> Account No. </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.accno}} </mat-cell>
    </ng-container>

    <!-- Account Description Column -->
    <ng-container matColumnDef="accdesc">
      <mat-header-cell *matHeaderCellDef> Account Description </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.accdesc}} </mat-cell>
    </ng-container>

    <!-- Investigator Column -->
    <ng-container matColumnDef="investigator">
      <mat-header-cell *matHeaderCellDef> Investigator </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.investigator}} </mat-cell>
    </ng-container>

    <!-- Account CPC Column -->
    <ng-container matColumnDef="accCPC">
      <mat-header-cell *matHeaderCellDef> Account CPC </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.accCPC}} </mat-cell>
    </ng-container>

     <!-- Location Column -->
    <ng-container matColumnDef="location">
      <mat-header-cell *matHeaderCellDef> Location </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.location}} </mat-cell>
       </ng-container>


 <!-- Client Dept ID Column -->
    <ng-container matColumnDef="cdeptid">
      <mat-header-cell *matHeaderCellDef> ClientDeptID </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.cdeptid}} </mat-cell>
       </ng-container>


        <!-- Dept Description Column -->
    <ng-container matColumnDef="depdesc">
      <mat-header-cell *matHeaderCellDef> Dept Description  </mat-header-cell>
      <mat-cell *matCellDef="let element"> {{element.depdesc}} </mat-cell>
       </ng-container>


    <mat-header-row *matHeaderRowDef="displayedColumns"></mat-header-row>
    <mat-row *matRowDef="let row; columns: displayedColumns;"></mat-row>
  </mat-table>

  <mat-paginator #paginator
                 [pageSize]="10"
                 [pageSizeOptions]="[5, 10, 20]">
  </mat-paginator>
</div>
</mat-card>
Below shown is my .ts file
import {Component, ViewChild} from '@angular/core';
import {MatPaginator, MatTableDataSource} from '@angular/material';

@Component({
  selector: 'app-account',
  templateUrl: './account.component.html',
  styleUrls: ['./account.component.scss']
})

export class AccountComponent {



  dept = [
    'Administrative Computer',
    'Agosta Laboratory',
    'Allis Laboratory',
    'Bargaman Laboratory',
    'Bio-Imaging Resource Center',
    'Capital Projects',
    'Casanova Laboratory',
    'Darst Laboratory',
    'Darnell James Laboratory',
    'Deans Office',
    'Energy Consultant',
    'Electronic Shop',
    'Facilities Management',
    'Field Laboratory'
  ];


  displayedColumns = ['accno', 'accdesc', 'investigator', 'accCPC','location','cdeptid','depdesc'];
  dataSource = new MatTableDataSource<Element>(ELEMENT_DATA);

  @ViewChild(MatPaginator) paginator: MatPaginator;

   ngAfterViewInit() {
    this.dataSource.paginator = this.paginator;
  }
}

export interface Element {
  accno: number;
  accdesc: string;
  investigator: string;
  accCPC: string;
  location:string;
  cdeptid: number;
  depdesc: string;
}

const ELEMENT_DATA: Element[] = [
  {accno: 5400343, accdesc: 'ASTRALIS LTD', investigator:'Kruger, James G.', accCPC: 'OR',location:'ON',cdeptid: 110350,depdesc: 'Kruger Laboratory'}

  ];

can anybody please help me to implement search filter with mat-select component in my application?

I found the solution for searching the dropdown values

Here is the html code

<mat-select class="yourClass" [(ngModel)]="searchObj">
            <input class="yourClass" placeholder ="search " (keyup)="onKey($event.target.value)"> 
            <mat-option *ngIf="someCondition" [value]='Select'>Select</mat-option>
            <mat-option *ngFor="let data of dataArray" [value]="data">{{data}}</mat-option>
          </mat-select>

Here is the typescript code key function getting the entered value

    onKey(value) { 
            this.dataArray= []; 
            this.selectSearch(value);       
        }

performing the searching given value inside the provided values in dropdown

selectSearch(value:string){
            let filter = value.toLowerCase();
            for ( let i = 0 ; i < this.meta.data.length; i ++ ) {
                let option = this.meta.data[i];
                if (  option.name.toLowerCase().indexOf(filter) >= 0) {
                    this.dataArray.push( option );
                }
            }
        }

this function is goes where your main search function calling api and getting the data

this.meta.data

        searchDpDropdown(){
            for ( let i = 0 ; i < this.meta.data.length; i ++ ) {
                this.dataArray.push( this.meta.data[i] );
            }
        }

Best method to implement a filtered search, However, if ALL the filters are optional, the rather awful truth is that parameterized dynamic sql actually performs better (unless you write N! different static PROCS  Implement a search filter for the <mat-select> component of angular material. Trying to implement a simple application in angular 2 using angular material. I implemented a simple table with pagination . I also used mat-select component, but for this i want implement a search filter to type and search the required option from the list.

Stored procedure to implement a search filter, A user could cause a dos attack by passing in complex like filters, you might want to sanitize the @name parameter. Implement a Search Filter - OutSystems Platform Training OutSystems. Loading Unsubscribe from OutSystems? Cancel Unsubscribe. Working Subscribe Subscribed Unsubscribe 8.28K.

HTML

<h4>mat-select</h4>
<mat-form-field>
  <mat-label>State</mat-label>
  <mat-select>
     <input (keyup)="onKey($event.target.value)"> // **Send user input to TS**
    <mat-option>None</mat-option>
    <mat-option *ngFor="let state of selectedStates" [value]="state">{{state}}</mat-option>
  </mat-select>
</mat-form-field>

TS

states: string[] = [
    'Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California', 'Colorado', 'Connecticut', 'Delaware',
    'Florida', 'Georgia', 'Hawaii', 'Idaho', 'Illinois', 'Indiana', 'Iowa', 'Kansas', 'Kentucky',
    'Louisiana', 'Maine', 'Maryland', 'Massachusetts', 'Michigan', 'Minnesota', 'Mississippi',
    'Missouri', 'Montana', 'Nebraska', 'Nevada', 'New Hampshire', 'New Jersey', 'New Mexico',
    'New York', 'North Carolina', 'North Dakota', 'Ohio', 'Oklahoma', 'Oregon', 'Pennsylvania',
    'Rhode Island', 'South Carolina', 'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont',
    'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyoming'
  ];

**// Initially fill the selectedStates so it can be used in the for loop** 
selectedStates = this.states; 

**// Receive user input and send to search method**
onKey(value) { 
this.selectedStates = this.search(value);
}

**// Filter the states list and send back to populate the selectedStates**
search(value: string) { 
  let filter = value.toLowerCase();
  return this.states.filter(option => option.toLowerCase().startsWith(filter));
}

The solution is rather easy. Should work like a charm :)

Writing advanced Eloquent search query filters, I recently needed to implement a search feature in an events management project I was building. What begun as a few simple options (searching by name,  The View. The first thing we’ll do is to create our view, it’s going to be something really simple, open the home.page.html file and create the search bar component and a list to loop through the items. The <ion-searchbar> is an Ionic component that gives us a really nice looking search bar at the top of our file.

I've found out that primefaces for angular does have a multiselect list that allows you to search for listitems. It also includes a builtin select-all button! You can find it here https://www.primefaces.org/primeng/#/multiselect You can install primefaces with npm install primeng --save

implement search filters in java, It would serve your project well to make an underlying SQL change. You might want to consider changing the Interest column from a free-input  Start with whatever you think is easier to implement (I guess option 2). Then measure the performance for real world data. Only start optimizing when needed, not beforehand. By the way, depending on how complex your search filters are, your task may not be easily solved without dynamic SQL.

I have done some work around for this even though its not correct implementation

component.hml

`

<mat-select formControlName="buyersCountryCode" matInput placeholder="Buyer's Country" required>
                    <input #buyersCountryQuery matInput placeholder="Search"  class="search-input" (keyup)="filterDropDowns(buyersCountryQuery.value, 'BUYERSCOUNTRY')"> 
                    <mat-option *ngFor="let country of filteredBuyersCountry" [value]="country.buyersCountryCode">{{country.buyersCountryValue}}</mat-option>
                </mat-select>

`

component.ts

`

this.filteredBuyersCountry = query
          ? this.filteredBuyersCountry.filter(item =>
              item.buyersCountryValue
                .toLocaleLowerCase()
                .includes(query.toLowerCase())
            )
          : this.dropDowns.buyersCountry;

`

How to Implement a Search Filter on an HTML Table using , Here in this post I am sharing couple of simple examples on how efficiently you can implement a search filter on an HTML table using AngularJS filter. The best way to implement a RESTful search is to consider the search itself to be a resource. Then you can use the POST verb because you are creating a search. You do not have to literally create something in a database in order to use a POST.

Silverlight TreeView | Implement Search, Filter and Sort, Implement Search, Filter and Sort. This article will demonstrate how you can implement searching, filtering and sorting on RadTreeView data. The final result will  Filter, Search, and LookUp functions in Power Apps. 02/05/2017; 4 minutes to read; In this article. Finds one or more records in a table. Description. The Filter function finds records in a table that satisfy a formula. Use Filter to find a set of records that match one or more criteria and to discard those that don't.

Implement a Search Filter - OutSystems Platform Training, As you create more records, it becomes difficult for the user to find a specific record. Why not Duration: 9:21 Posted: Sep 24, 2014 * In this tutorial, we are going to cover how to implement search functionality in ASP.NET MVC 4. In our web applications in MVC, we often need to add the functionality to search the database objects for specific data based on some criteria like to find employees with name starting with 'N' or to find data of employees that have Gender Male.

Filtering and sorting search results, To help users get to the right pages on your site, Custom Search Filter by Attribute; Sort by Attribute; Bias by Attribute; Restrict to Range To implement this, you can set the sort options to date-sdate:r:20100825:20100907 . In this video we will implement a search functionality for our RecyclerView so we can filter it's items by their text. For this we will use an EditText, the setTextChangedListener method, a

Comments
  • I wish it supported pagination and supported lazy loading while scrolling
  • this will not filter the dropdown, it will only tell true or false.
  • Please check this stackblitz: stackblitz.com/edit/angular-l2jr3r
  • the problem is you have copied and pasted from stackblitz but you didnt know what is happening here.
  • Not sure what you are talking about, I used the code above in my application. I created the stackblitz with the same code to prove it works.