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ExampleRazorC#Video

Filter and sort function

Filter to quickly find the data you want to see; sort to quickly find or compare data.

  • Filters a column of data to specify the column to be filtered by specifying the filterable property of the column
  • Sort a column of data, specify the column to be sorted by specifying the Sortable property of the column, change the collation by multiple clicks

Set the Filterable property of the TableColumn column to control whether the column header has data filtering enabled

Demo

Filterable currently supports two applications:

  • The Filters in the query method parameters are filter criteria, and the database can filter the data by itself through this property when querying data
  • No sense of use, normal query data, no processing is done to filtering, internal processing will be carried out according to Filter
  • When external filtering has been made, set the Value of the IsFiltered property of the QueryData<TItem> parameter to true
  • Each column can be set separately, and the filter between columns is And and relationship
This example is of DateTime, string, bool, enum, int type, and the pop-up filter box is also different

Set FilterTemplate template values, customize column filter templates, very suitable for complex types of filter pop-ups

Demo

The FilterTemplate type is RenderFragment: its value is a custom component, and the component must inherit the filterBase In this case, the last column in this case, the Quantity column, uses the custom component by filtering the template CustomerFilter [portal] CustomerFilter component source code

Show filter header when the ShowFilterHeader property value is set to true

Demo

Default sorts as default when setting the DefaultSort property value to true

Demo
  • Set DefaultSort=true to enable the default sort function, when multiple columns set this property, the first column works
  • Set DefaultSortOrder value, set default collation

In this case the default sort is the last column in reverse order

Set the SortList property, use this parameter for multi-column sorting when the table loads

Demo

The default collation in this case is: DeteTime desc Address, you don't need to handle the sort logic yourself, the component is already built-in

Set OnSort Parameters

Demo

When clicking the column header to sort, the component calls the OnSort callback internally, where its return value can be set according to the business logic to achieve dynamic multi-column sorting, in this case, when clicking the time column header for positive order sorting, use DateTime,Count internally, useDateTime desc, Count descwhen Count reverse order

Example shows how to set filters through code

Demo
@page "/tables/filter"

<h3>@FilterLocalizer["Title"]</h3>

<h4>@FilterLocalizer["Desc"]</h4>

<ul class="ul-demo mt-3">
    <li>@((MarkupString)FilterLocalizer["DescLi1"].Value)</li>
    <li>@((MarkupString)FilterLocalizer["DescLi2"].Value)</li>
</ul>

<DemoBlock Title="@FilterLocalizer["FilterableTitle"]" Introduction="@FilterLocalizer["FilterableIntro"]" Name="Filterable">
    <p>@((MarkupString)FilterLocalizer["FilterableP"].Value)</p>
    <ul class="ul-demo mb-3">
        <li>@((MarkupString)FilterLocalizer["FilterableLi1"].Value)</li>
        <li>@((MarkupString)FilterLocalizer["FilterableLi2"].Value)</li>
        <li>@((MarkupString)FilterLocalizer["FilterableLi3"].Value)</li>
        <li>@((MarkupString)FilterLocalizer["FilterableLi4"].Value)</li>
    </ul>
    <div>@((MarkupString)FilterLocalizer["FilterableDiv"].Value)</div>
    <Alert ShowBar="true" Color="Color.Info" class="mt-3">@((MarkupString)FilterLocalizer["FilterableAlert"].Value)</Alert>
    <Table TItem="Foo"
           IsPagination="true" PageItemsSource="@PageItemsSource"
           IsStriped="true" IsBordered="true" IsMultipleSelect="true"
           ShowSkeleton="true"
           OnQueryAsync="@OnQueryAsync">
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Name" Width="100" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Address" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Complete" Width="100" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Education" Width="100" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Count" Width="100" Sortable="true" Filterable="true" />
        </TableColumns>
    </Table>
</DemoBlock>

<DemoBlock Title="@FilterLocalizer["FilterTemplateTitle"]" Introduction="@FilterLocalizer["FilterTemplateIntro"]" Name="FilterTemplate">
    <p>@((MarkupString)FilterLocalizer["FilterTemplateP", ComponentSourceCodeUrl].Value)</p>
    <Table TItem="Foo"
           IsPagination="true" PageItemsSource="@PageItemsSource"
           IsStriped="true" IsBordered="true" IsMultipleSelect="true"
           ShowSkeleton="true"
           OnQueryAsync="@OnQueryAsync">
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Name" Width="100" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Address" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Complete" Width="100" Sortable="true" Filterable="true">
                <Template Context="value">
                    <Checkbox Value="@value.Value" IsDisabled="true"></Checkbox>
                </Template>
            </TableColumn>
            <TableColumn @bind-Field="@context.Count" Width="100" Sortable="true" Filterable="true">
                <FilterTemplate>
                    <CustomerFilter></CustomerFilter>
                </FilterTemplate>
            </TableColumn>
        </TableColumns>
    </Table>
</DemoBlock>

<DemoBlock Title="@FilterLocalizer["ShowFilterHeaderTitle"]" Introduction="@FilterLocalizer["ShowFilterHeaderIntro"]" Name="ShowFilterHeader">
    <Table TItem="Foo"
           IsPagination="true" PageItemsSource="@PageItemsSource"
           IsStriped="true" IsBordered="true" IsMultipleSelect="true"
           ShowSkeleton="true" ShowFilterHeader="true"
           OnQueryAsync="@OnQueryAsync">
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" Sortable="true" />
            <TableColumn @bind-Field="@context.Name" Width="100" Sortable="true" />
            <TableColumn @bind-Field="@context.Address" Sortable="true" />
            <TableColumn @bind-Field="@context.Complete" Width="100" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Education" Width="100" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Count" Width="100" Sortable="true" DefaultSort="true" DefaultSortOrder="@SortOrder.Desc" />
        </TableColumns>
    </Table>
</DemoBlock>

<DemoBlock Title="@FilterLocalizer["DefaultSortTitle"]" Introduction="@FilterLocalizer["DefaultSortIntro"]" Name="DefaultSort">
    <ul class="ul-demo mb-3">
        <li>@((MarkupString)FilterLocalizer["DefaultSortLi1"].Value)</li>
        <li>@((MarkupString)FilterLocalizer["DefaultSortLi2"].Value)</li>
    </ul>
    <p>@FilterLocalizer["DefaultSortP"]</p>
    <Table TItem="Foo"
           IsPagination="true" PageItemsSource="@PageItemsSource"
           IsStriped="true" IsBordered="true" IsMultipleSelect="true"
           ShowSkeleton="true"
           OnQueryAsync="@OnQueryAsync">
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" Sortable="true" />
            <TableColumn @bind-Field="@context.Name" Width="100" Sortable="true" />
            <TableColumn @bind-Field="@context.Address" Sortable="true" />
            <TableColumn @bind-Field="@context.Count" Width="100" Sortable="true" DefaultSort="true" DefaultSortOrder="@SortOrder.Desc" />
        </TableColumns>
    </Table>
</DemoBlock>

<DemoBlock Title="@FilterLocalizer["SortListTitle"]" Introduction="@FilterLocalizer["SortListIntro"]" Name="SortString">
    <p>@((MarkupString)FilterLocalizer["SortListP"].Value)</p>
    <Table TItem="Foo"
           IsPagination="true" PageItemsSource="@PageItemsSource"
           IsStriped="true" IsBordered="true" IsMultipleSelect="true"
           ShowSkeleton="true" SortString="SortList"
           OnQueryAsync="@OnQueryAsync">
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" Sortable="true" />
            <TableColumn @bind-Field="@context.Name" Width="100" Sortable="true" />
            <TableColumn @bind-Field="@context.Address" Sortable="true" />
            <TableColumn @bind-Field="@context.Count" Width="100" Sortable="true" />
        </TableColumns>
    </Table>
</DemoBlock>

<DemoBlock Title="@FilterLocalizer["OnSortTitle"]" Introduction="@FilterLocalizer["OnSortIntro"]" Name="OnSort">
    <p>@((MarkupString)FilterLocalizer["OnSortP"].Value)</p>
    <Table TItem="Foo"
           IsPagination="true" PageItemsSource="@PageItemsSource"
           IsStriped="true" IsBordered="true" IsMultipleSelect="true"
           ShowSkeleton="true" SortString="@SortString" OnSort="OnSort"
           OnQueryAsync="@OnQueryAsync">
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" Sortable="true" />
            <TableColumn @bind-Field="@context.Name" Width="100" Sortable="true" />
            <TableColumn @bind-Field="@context.Address" Sortable="true" />
            <TableColumn @bind-Field="@context.Count" Width="100" Sortable="true" />
        </TableColumns>
    </Table>
</DemoBlock>

<DemoBlock Title="@FilterLocalizer["SetFilterInCodeTitle"]" Introduction="@FilterLocalizer["SetFilterInCodeIntro"]" Name="SetFilterInCode">
    <div class="mb-2">
        <Button Text="@FilterLocalizer["SetFilterInCodeButtonText1"]" OnClickWithoutRender="SetFilterInCode" />
        <Button Text="@FilterLocalizer["SetFilterInCodeButtonText2"]" OnClickWithoutRender="ResetAllFilters" />
    </div>
    <Table TItem="Foo" @ref="TableSetFilter"
           IsPagination="true" PageItemsSource="@PageItemsSource"
           IsStriped="true" IsBordered="true" IsMultipleSelect="true"
           ShowSkeleton="true" ShowFilterHeader="true"
           OnQueryAsync="@OnQueryAsync">
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" Sortable="true" />
            <TableColumn @bind-Field="@context.Name" Width="100" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Address" Sortable="true" />
            <TableColumn @bind-Field="@context.Complete" Width="100" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Education" Width="100" Sortable="true" Filterable="true" />
            <TableColumn @bind-Field="@context.Count" Width="150" 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 Microsoft.Extensions.Options;

namespace BootstrapBlazor.Shared.Samples.Table;

/// <summary>
/// 过滤示例代码
/// </summary>
public partial class TablesFilter
{
    private static IEnumerable<int> PageItemsSource => new int[] { 4, 10, 20 };

    [NotNull]
    private List<Foo>? Items { get; set; }

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

    [Inject]
    [NotNull]
    private IStringLocalizer<TablesFilter>? FilterLocalizer { get; set; }

    [Inject]
    [NotNull]
    private IOptionsMonitor<WebsiteOptions>? WebsiteOption { get; set; }

    private string SortString { get; set; } = "DateTime desc, Address";

    private string ComponentSourceCodeUrl => $"{WebsiteOption.CurrentValue.BootstrapBlazorLink}/blob/main/src/BootstrapBlazor.Shared/Samples/Table/CustomerFilter.razor";

    /// <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;

        // 此段代码可不写，组件内部自行处理
        if (options.SortName == nameof(Foo.DateTime) && options.SortList != null)
        {
            var sortInvoker = Utility.GetSortListFunc<Foo>();
            items = sortInvoker(items, options.SortList);
            isSorted = true;
        }
        else if (!string.IsNullOrEmpty(options.SortName))
        {
            // 外部未进行排序，内部自动进行排序处理
            var invoker = Utility.GetSortFunc<Foo>();
            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
        });
    }

    private static string OnSort(string sortName, SortOrder sortOrder)
    {
        string sortString = "";
        if (sortName == nameof(Foo.DateTime))
        {
            if (sortOrder == SortOrder.Asc)
            {
                sortString = "DateTime, Count";
            }
            else if (sortOrder == SortOrder.Desc)
            {
                sortString = "DateTime desc, Count desc";
            }
            else
            {
                sortString = "DateTime desc, Count";
            }
        }
        return sortString;
    }

    [NotNull]
    private Table<Foo>? TableSetFilter { get; set; }

    private async Task SetFilterInCode()
    {
        //Find Column
        var column = TableSetFilter.Columns.First(x => x.GetFieldName() == nameof(Foo.Name));

        //Build Filter
        var filters = new List<FilterKeyValueAction>()
        {
            new FilterKeyValueAction { FieldValue = "01", FilterAction = FilterAction.Contains }
        };

        //Set Filter
        var filterAction = column.Filter?.FilterAction;
        if (filterAction != null)
        {
            await filterAction.SetFilterConditionsAsync(filters);
        }
    }

    private Task ResetAllFilters() => TableSetFilter.ResetFilters();
}

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