Angular 6材质表粘贴标头不起作用 [英] Angular 6 Material Table Sticky Header doesn't work

问题描述

我需要将mat-table组件的Header固定在顶部，但这不起作用。

I need to make the Header of the mat-table component fixed to the top, But It doesn't work.

我有Angular v6.1.7和@角/材质v6.4.7。

I have Angular v6.1.7 and @angular/material v6.4.7.

我在matHeaderRowDef中添加了 sticky：true属性，为有人在这里提到，但它什么也没做：（

I added the "sticky: true" propertie to the matHeaderRowDef as someone mentions here but it doesn't do anything :(

<tr mat-header-row *matHeaderRowDef="displayedColumns; sticky: true"></tr>

I拥有以下示例项目： https://stackblitz.com/edit/angular-wem2qa

I have this example project: https://stackblitz.com/edit/angular-wem2qa

这是我在TS文件上的导入：

This is my imports on the TS file:

import { Component, Input, OnChanges, OnInit, SimpleChanges, ViewChild } from "@angular/core";
import { MatDialog, MatExpansionPanel, MatSnackBar, MatSort, MatTableDataSource, Sort } from "@angular/material";

推荐答案

您的问题可能不是粘性行本身。您需要在表格周围添加一个容器，以确保这些样式的顶部行可以粘在上面，例如：

Your problem may be not the sticky row itself. You need to add a container around your table to make sure a row can be sticky at top with these styles for example:

.example-container {
  height: 400px;
  overflow: auto;
}

请参见Angular Material文档中的示例： https://material.angular.io/components/table/overview#sticky-rows-and-columns 并检查CSS标签。

See example on Angular Material documentation: https://material.angular.io/components/table/overview#sticky-rows-and-columns and also check the CSS-tab.

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