角材料的组成部分

角材料的组成部分

本文介绍了为 <mat-select> 实现一个搜索过滤器.角材料的组成部分的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

尝试使用 angular material 在 angular 2 中实现一个简单的应用程序.
我实现了一个带分页的简单表格.

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

我也使用了 mat-select 组件,但为此我想实现一个搜索过滤器来从列表中输入和搜索所需的选项.

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.

<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>

</mat-card>

Below shown is my .ts file

下面显示的是我的 .ts 文件

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

有人可以帮我在我的应用程序中使用 mat-select 组件实现搜索过滤器吗?

解决方案

推荐答案



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));
}

解决方案相当简单.应该像魅力一样工作:)

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

这篇关于为 &lt;mat-select&gt; 实现一个搜索过滤器.角材料的组成部分的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

09-02 02:47