Javascript 素数表动态单元格编辑控件

我一直在跟踪

这是你的电话号码

所有三列都是可编辑的。“属性名称”列始终呈现编辑中的文本框，而“属性值类型”列始终呈现下拉列表

但是对于属性值列，我希望根据以下两个条件呈现文本框或下拉列表：

文本框如果该行的“属性值类型”单元格值为字符串

下拉列表如果该行的“属性值类型”单元格值为布尔值

我在网格HTML中添加了条件编辑控件。当我将“Property value Type”单元格的值从字符串更改为布尔值（或其他方式）时，该行的“Property value”单元格应该呈现下拉列表，但它仍然显示一个文本框（除非触发分页事件或排序事件）

如何刷新特定单元格

组件：

export class AppComponent {
  name = 'Angular';
  tableColumns = [
    { field: 'propName', header: 'Property Name' },
    { field: 'propValue', header: 'Property Value' },
    { field: 'propValueType', header: 'Property Value Type' },
  ];
  booleanOptions = [{ label: 'true', value: 'true' }, { label: 'false', value: 'false' }];
  propValueTypeOptions = [{ label: 'String', value: 'String' }, { label: 'Boolean', value: 'Boolean' }];
  tableItems = [
    { propName: 'prop 1', propValue: 'value 1', propValueType: 'String' },
    { propName: 'prop 2', propValue: 'true', propValueType: 'Boolean' },
    { propName: 'prop 3', propValue: 'value 3', propValueType: 'String' },
    { propName: 'prop 4', propValue: 'true', propValueType: 'Boolean' },
    { propName: 'prop 5', propValue: 'value 5', propValueType: 'String' },
    { propName: 'prop 6', propValue: 'true', propValueType: 'Boolean' },
    { propName: 'prop 7', propValue: 'value 7', propValueType: 'String' },
    { propName: 'prop 8', propValue: 'true', propValueType: 'Boolean' },
    { propName: 'prop 9', propValue: 'value 9', propValueType: 'String' },
    { propName: 'prop 10', propValue: 'true', propValueType: 'Boolean' },
  ];


  refreshGrid() {
    const temp = [...this.tableItems];
    this.tableItems = temp;
    setTimeout(() => {
      this.tableItems = [...temp];
    }, 0);
  }

  showPropNameEditCellTextBox(col) {
    return (col.field === 'propName');
  }

  showPropValueTypeEditDdl(col) {
    return (col.field === 'propValueType');
  }

  showPropValueTxtIfString(rowData, col) {
    return (col.field === 'propValue' && rowData.propValueType === 'String');
  }

  showPropValueDdlIfBoolean(rowData, col) {
    return (col.field === 'propValue' && rowData.propValueType === 'Boolean');
  }
}

<div>
    <p-table [columns]="tableColumns" [value]="tableItems" [paginator]="true" [rows]="15" resizableColumns="true" responsive="true"
     [rowHover]="true" derableColumns="true">
        <ng-template pTemplate="header" let-columns>
            <tr>
                <th *ngFor="let col of columns" [pSortableColumn]="col.field">
                    {{col.header}}
                    <p-sortIcon [field]="col.field"></p-sortIcon>
                </th>
            </tr>
        </ng-template>
        <ng-template pTemplate="body" let-rowData let-columns="columns">
            <tr>
                <td pEditableColumn *ngFor="let col of columns">
                    <p-cellEditor>
                        <ng-template pTemplate="output">
                            {{rowData[col.field]}}
                        </ng-template>

            <!-- Show text box for "Property Name" column -->
                        <ng-template pTemplate="input" *ngIf="showPropNameEditCellTextBox(col)">
                            <input pInputText [(ngModel)]="rowData[col.field]" type="text" maxlength="50" class="form-control" />
            </ng-template>
            <!-- Show text box for "Property Name" column /-->

            <!-- Show Text for "Property Value" column if Property Value Type column is "String" -->
            <ng-template pTemplate="input" *ngIf="showPropValueTxtIfString(rowData, col)">
              <input pInputText [(ngModel)]="rowData[col.field]" type="text" maxlength="50" class="form-control" />
            </ng-template>
            <!-- Show Text for "Property Value" column if Property Value Type column is "String" /-->

            <!-- Show Dropdown for "Property Value" column if Property Value Type column is "Boolean" -->
            <ng-template pTemplate="input" *ngIf="showPropValueDdlIfBoolean(rowData, col)">
              <select class="form-control" [(ngModel)]="rowData[col.field]">
                <option *ngFor="let item of booleanOptions" class="form-control" [value]="item.value">{{item.label}}</option>
              </select>            
            </ng-template>
            <!-- Show Dropdown for "Property Value" column if Property Value Type column is "Boolean" /-->

            <!-- Show dropdown for "Property Value Type" column -->
            <ng-template pTemplate="input" *ngIf="showPropValueTypeEditDdl(col)">
              <select class="form-control" [(ngModel)]="rowData[col.field]" (change)="refreshGrid()">
                <option *ngFor="let item of propValueTypeOptions" class="form-control" [value]="item.value">{{item.label}}</option>
              </select>
            </ng-template>
            <!-- Show dropdown for "Property Value Type" column /-->
                    </p-cellEditor>
                </td>
            </tr>
        </ng-template>
    </p-table>
</div>

HTML:

export class AppComponent {
  name = 'Angular';
  tableColumns = [
    { field: 'propName', header: 'Property Name' },
    { field: 'propValue', header: 'Property Value' },
    { field: 'propValueType', header: 'Property Value Type' },
  ];
  booleanOptions = [{ label: 'true', value: 'true' }, { label: 'false', value: 'false' }];
  propValueTypeOptions = [{ label: 'String', value: 'String' }, { label: 'Boolean', value: 'Boolean' }];
  tableItems = [
    { propName: 'prop 1', propValue: 'value 1', propValueType: 'String' },
    { propName: 'prop 2', propValue: 'true', propValueType: 'Boolean' },
    { propName: 'prop 3', propValue: 'value 3', propValueType: 'String' },
    { propName: 'prop 4', propValue: 'true', propValueType: 'Boolean' },
    { propName: 'prop 5', propValue: 'value 5', propValueType: 'String' },
    { propName: 'prop 6', propValue: 'true', propValueType: 'Boolean' },
    { propName: 'prop 7', propValue: 'value 7', propValueType: 'String' },
    { propName: 'prop 8', propValue: 'true', propValueType: 'Boolean' },
    { propName: 'prop 9', propValue: 'value 9', propValueType: 'String' },
    { propName: 'prop 10', propValue: 'true', propValueType: 'Boolean' },
  ];


  refreshGrid() {
    const temp = [...this.tableItems];
    this.tableItems = temp;
    setTimeout(() => {
      this.tableItems = [...temp];
    }, 0);
  }

  showPropNameEditCellTextBox(col) {
    return (col.field === 'propName');
  }

  showPropValueTypeEditDdl(col) {
    return (col.field === 'propValueType');
  }

  showPropValueTxtIfString(rowData, col) {
    return (col.field === 'propValue' && rowData.propValueType === 'String');
  }

  showPropValueDdlIfBoolean(rowData, col) {
    return (col.field === 'propValue' && rowData.propValueType === 'Boolean');
  }
}

<div>
    <p-table [columns]="tableColumns" [value]="tableItems" [paginator]="true" [rows]="15" resizableColumns="true" responsive="true"
     [rowHover]="true" derableColumns="true">
        <ng-template pTemplate="header" let-columns>
            <tr>
                <th *ngFor="let col of columns" [pSortableColumn]="col.field">
                    {{col.header}}
                    <p-sortIcon [field]="col.field"></p-sortIcon>
                </th>
            </tr>
        </ng-template>
        <ng-template pTemplate="body" let-rowData let-columns="columns">
            <tr>
                <td pEditableColumn *ngFor="let col of columns">
                    <p-cellEditor>
                        <ng-template pTemplate="output">
                            {{rowData[col.field]}}
                        </ng-template>

            <!-- Show text box for "Property Name" column -->
                        <ng-template pTemplate="input" *ngIf="showPropNameEditCellTextBox(col)">
                            <input pInputText [(ngModel)]="rowData[col.field]" type="text" maxlength="50" class="form-control" />
            </ng-template>
            <!-- Show text box for "Property Name" column /-->

            <!-- Show Text for "Property Value" column if Property Value Type column is "String" -->
            <ng-template pTemplate="input" *ngIf="showPropValueTxtIfString(rowData, col)">
              <input pInputText [(ngModel)]="rowData[col.field]" type="text" maxlength="50" class="form-control" />
            </ng-template>
            <!-- Show Text for "Property Value" column if Property Value Type column is "String" /-->

            <!-- Show Dropdown for "Property Value" column if Property Value Type column is "Boolean" -->
            <ng-template pTemplate="input" *ngIf="showPropValueDdlIfBoolean(rowData, col)">
              <select class="form-control" [(ngModel)]="rowData[col.field]">
                <option *ngFor="let item of booleanOptions" class="form-control" [value]="item.value">{{item.label}}</option>
              </select>            
            </ng-template>
            <!-- Show Dropdown for "Property Value" column if Property Value Type column is "Boolean" /-->

            <!-- Show dropdown for "Property Value Type" column -->
            <ng-template pTemplate="input" *ngIf="showPropValueTypeEditDdl(col)">
              <select class="form-control" [(ngModel)]="rowData[col.field]" (change)="refreshGrid()">
                <option *ngFor="let item of propValueTypeOptions" class="form-control" [value]="item.value">{{item.label}}</option>
              </select>
            </ng-template>
            <!-- Show dropdown for "Property Value Type" column /-->
                    </p-cellEditor>
                </td>
            </tr>
        </ng-template>
    </p-table>
</div>

{{col.header}}
{{rowData[col.field]}
{{item.label}
{{item.label}

priming Table根据值更改的引用检测更改，因此只需创建新对象或进行深度复制即可解决问题

要制作深度副本，请使用

JSON.parse（JSON.stringify（a））

或使用lodash

refreshGrid() {
    let temp = [...this.tableItems];
    temp = JSON.parse(JSON.stringify(temp));
    this.tableItems = temp;
    setTimeout(() => {
      this.tableItems = [...temp];
    }, 0);
}

---

更新了

工作得很有魅力