Question

我有这张桌子：

现在，我想根据状态来动态更改行背景，如下所示：

S-白色； W-蓝色； E-红色； F-绿色；

我的html代码：

<div class="mat-elevation-z8">
  <table mat-table [dataSource]="this.dataSource" multiTemplateDataRows class="mat-elevation-z8" >

    <!--- Note that these columns can be defined in any order.
        The actual rendered columns are set as a property on the row definition" -->
    <ng-container matColumnDef="expandedDetail">
      <td mat-cell *matCellDef="let element" [attr.colspan]="displayedColumns.length">
        <div class="example-element-detail" [@detailExpand]="element == expandedElement ? 'expanded' : 'collapsed'" *ngIf="log_message">
          <div class="example-element-description">
            <p *ngIf="this.log_message">Log Message:</p>
            <p *ngIf="!this.log_message">N/A</p>
            <pre *ngIf="this.log_message"> {{ this.log_message }} </pre>
          </div>
        </div>
      </td>
    </ng-container>

    <ng-container matColumnDef="UPD_DATE">
      <th mat-header-cell *matHeaderCellDef> UPD_DATE </th>
      <td mat-cell *matCellDef="let data"> {{data.LAST_UPD_DATETIME}} </td>
    </ng-container>

    <ng-container matColumnDef="S">
      <th mat-header-cell *matHeaderCellDef> S </th>
      <td mat-cell *matCellDef="let data"> {{data.STATUS}} </td>
    </ng-container>

    <ng-container matColumnDef="PROC">
      <th mat-header-cell *matHeaderCellDef> PROC </th>
      <td mat-cell *matCellDef="let data"> {{data.PROC_ID}} </td>
    </ng-container>

    <ng-container matColumnDef="AGENT">
      <th mat-header-cell *matHeaderCellDef> AGENT </th>
      <td mat-cell *matCellDef="let data"> {{data.AGENT_ID}} </td>
    </ng-container>

    <ng-container matColumnDef="SUBMIT_DATE">
      <th mat-header-cell *matHeaderCellDef> SUBMIT_DATE </th>
      <td mat-cell *matCellDef="let data"> {{data.SUBMIT_DATE}} </td>
    </ng-container>

    <ng-container matColumnDef="END_DATE">
      <th mat-header-cell *matHeaderCellDef> END_DATE </th>
      <td mat-cell *matCellDef="let data"> {{data.END_DATE}} </td>
    </ng-container>

    <ng-container matColumnDef="START_DATE">
      <th mat-header-cell *matHeaderCellDef> START_DATE </th>
      <td mat-cell *matCellDef="let data"> {{data.START_DATE}} </td>
    </ng-container>

    <ng-container matColumnDef="USER_SUBMIT">
      <th mat-header-cell *matHeaderCellDef> USER_SUBMIT </th>
      <td mat-cell *matCellDef="let data"> {{data.USER_SUBMIT}} </td>
    </ng-container>

    <ng-container matColumnDef="THREAD_NUM">
      <th mat-header-cell *matHeaderCellDef> THREAD_NUM </th>
      <td mat-cell *matCellDef="let data"> {{data.THREAD_NUM}} </td>
    </ng-container>

    <ng-container matColumnDef="INSTANCE_ID">
      <th mat-header-cell *matHeaderCellDef> INSTANCE_ID </th>
      <td mat-cell *matCellDef="let data"> {{data.INSTANCE_ID}} </td>
    </ng-container>

    <ng-container matColumnDef="START">
      <th mat-header-cell *matHeaderCellDef> START </th>
      <td mat-cell *matCellDef="let row"><button class="btn btn-success" (click)="onStart(row)" [disabled]="this.started">Start</button></td>
    </ng-container>

    <ng-container matColumnDef="STOP">
      <th mat-header-cell *matHeaderCellDef> STOP </th>
      <td mat-cell *matCellDef="let row"><button class="btn btn-danger" (click)="onStop()">Stop</button></td>
    </ng-container>

    <ng-container matColumnDef="LOG">
      <th mat-header-cell *matHeaderCellDef> LOG </th>
      <td mat-cell *matCellDef="let row"><button class="btn btn-info" (click)="onLog()">Log</button></td>
    </ng-container>

    <tr mat-header-row *matHeaderRowDef="displayedColumns; sticky: true"></tr>
    <tr mat-row *matRowDef="let element; columns: displayedColumns;" class="example-element-row"
      [class.example-expanded-row]="expandedElement === element" (click)="log_message = onElementExpand(element); expandedElement = element;"></tr>
    <tr mat-row *matRowDef="let row; columns: ['expandedDetail']" class="example-detail-row"></tr>
  </table>

  <mat-toolbar>
      <mat-toolbar-row>
          <button class="btn btn-primary" (click)="getIpeProcessInstances()" [disabled]="false">{{ 'button.Refresh' | translate }}</button>
        <span class="example-spacer"></span>
        <mat-paginator [pageSizeOptions]="[5, 10, 20]" showFirstLastButtons></mat-paginator>
      </mat-toolbar-row>
    </mat-toolbar>

还有我的CSS：

table {
  width: 100%;
}

tr.example-detail-row {
  height: 0;
}


tr.example-element-row:not(.example-expanded-row):hover {
  background: #f5f5f5;
}

tr.example-element-row:not(.example-expanded-row):active {
  background: #efefef;
}

.example-element-row td {
  border-bottom-width: 0;
}

.example-element-detail {
  overflow: hidden;
  display: flex;
}

.example-element-diagram {
  min-width: 80px;
  border: 2px solid black;
  padding: 8px;
  font-weight: lighter;
  margin: 8px 0;
  height: 104px;
}

.example-element-symbol {
  font-weight: bold;
  font-size: 40px;
  line-height: normal;
}

.example-element-description {
  padding: 16px;
}

.example-element-description-attribution {
  opacity: 0.5;
}

.mat-elevation-z8 {
  width: 100%;
}

.mat-row:hover {
  background-color: whitesmoke;
}

.example-icon {
  padding: 0 14px;
}

.example-spacer {
  flex: 1 1 auto;
}

.mat-paginator
{
  background-color: whitesmoke;
}

那么我如何定义每种情况的颜色？有没有可以动态定义的选项？我可以为每行使用一个CSS样式吗？谢谢！

Answer 1

您还可以使用[ngClass]来实现此目的：

<td [ngClass]="{
  'is-white': data.STATUS === 'S',
  'is-blue': data.STATUS === 'W',
  'is-red': data.STATUS === 'E',
  'is-green': data.STATUS === 'F'
}">...</td>

然后在您的CSS中：

td.is-white {
    background: ...;
}

等等！希望能帮助您了解可以使用其他解决方案来实现这一目标。

编辑

使用时，只需在第二个[ngClass]中使用<tr>

<tr mat-row *matRowDef="let element; columns: displayedColumns;" class="example-element-row"
  [class.example-expanded-row]="expandedElement === element"
  [ngClass]="{
  'is-white': element.STATUS === 'S',
  'is-blue': element.STATUS === 'W',
  'is-red': element.STATUS === 'E',
  'is-green': element.STATUS === 'F'
}" (click)="log_message = onElementExpand(element); expandedElement = element;"></tr>

Answer 2

您可以通过在{p>上使用[ngStyle]来实现

<td mat-cell *matCellDef="let data" [ngStyle]="{'background-color': data.STATUS == 's' ? 'white': data.STATUS == 'w' ? 'blue' : data.STATUS == 'e' ? 'Red' : data.STATUS == 'f' ? 'green' : ''}"> {{data.STATUS}} </td>

我的答案并不完美，因为在这种情况下，您需要在每个[ngStyle]上重复td

Answer 3

添加具有状态值的属性，然后为该属性编写CSS

例如：HTML

<tr [attr.row_status]="data.STATUS" /></tr>

因此，在呈现视图时，您的HTML将如下所示：

<tr row_status="S"></tr>

现在为选择器添加CSS：

[row_status="S"] {
   background: #fff
}

让我知道您是否仍然面临该问题。并可能下次通过代码段共享代码。

干杯：）

Angular 2+-材质表-动态将背景色应用于行

3 个答案: