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表头分组功能

数据结构比较复杂的时候,可使用多级表头来展现数据的层次关系

设置 MultiHeaderTemplate 模板即可

Demo

通过设置 ShowMultiFilterHeader 值,来控制是否显示过滤行头
注意细节,首列单元格合并后导致最后一行表头第一列无单元格,所以需要自行设置样式 border-bottom 与其他单元格一致

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@page "/tables/multi-header"

<h3>表头分组功能</h3>

<h4>数据结构比较复杂的时候,可使用多级表头来展现数据的层次关系</h4>

<DemoBlock Title="基础用法" Introduction="设置 <code>MultiHeaderTemplate</code> 模板即可" Name="MultiHeaderTemplate">
    <p>
        <div>通过设置 <code>ShowMultiFilterHeader</code> 值,来控制是否显示过滤行头</div>
        <div>注意细节,首列单元格合并后导致最后一行表头第一列无单元格,所以需要自行设置样式 <code>border-bottom</code> 与其他单元格一致</div>
    </p>
    <Table TItem="Foo" OnQueryAsync="@OnQueryAsync" IsBordered="true" IsStriped="true" ShowMultiFilterHeader="false">
        <MultiHeaderTemplate>
            <tr>
                <th rowspan="2" class="table-header-group-th1"><div class="table-cell">时间</div></th>
                <th colspan="2" class="table-header-group-th2"><div class="table-cell">个人信息</div></th>
            </tr>
            <tr>
                <th><div class="table-cell">个人姓名</div></th>
                <th><div class="table-cell">个人地址</div></th>
            </tr>
        </MultiHeaderTemplate>
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" Filterable="true" Sortable="true" />
            <TableColumn @bind-Field="@context.Name" Width="100" Filterable="true" Sortable="true" />
            <TableColumn @bind-Field="@context.Address" Filterable="true" Sortable="true" />
        </TableColumns>
    </Table>
</DemoBlock>
// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
// Website: https://www.blazor.zone or https://argozhang.github.io/

using BootstrapBlazor.Components;
using Microsoft.AspNetCore.Components;
using Microsoft.Extensions.Localization;

namespace BootstrapBlazor.Shared.Samples.Table;

/// <summary>
/// 
/// </summary>
public partial class TablesHeader
{
    [NotNull]
    private List<Foo>? Items { get; set; }

    [Inject]
    [NotNull]
    private IStringLocalizer<Foo>? Localizer { get; set; }

    /// <summary>
    /// OnInitialized 方法
    /// </summary>
    protected override void OnInitialized()
    {
        base.OnInitialized();

        Items = Foo.GenerateFoo(Localizer);
    }

    private Task<QueryData<Foo>> OnQueryAsync(QueryPageOptions options)
    {
        IEnumerable<Foo> items = Items;

        // 过滤
        var isFiltered = false;
        if (options.Filters.Any())
        {
            items = items.Where(options.Filters.GetFilterFunc<Foo>());
            isFiltered = true;
        }

        // 排序
        var isSorted = false;
        if (!string.IsNullOrEmpty(options.SortName))
        {
            var invoker = Foo.GetNameSortFunc();
            items = invoker(items, options.SortName, options.SortOrder);
            isSorted = true;
        }

        // 设置记录总数
        var total = items.Count();

        // 内存分页
        items = items.Skip((options.PageIndex - 1) * options.PageItems).Take(options.PageItems).ToList();

        return Task.FromResult(new QueryData<Foo>()
        {
            Items = items,
            TotalCount = total,
            IsSorted = isSorted,
            IsFiltered = isFiltered,
            IsSearch = true
        });
    }
}

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