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Auto Refresh table

In a certain application scenario, the change of the data source needs to refresh the table component

This example demonstrates monitoring the data source in a background thread, and notifies the table component to refresh the data when the data source changes

Demo

The auto refresh function is enabled by setting the value of the IsAutoRefresh property. The default value of the AutoRefreshInterval property is 2000 milliseconds, which is the auto refresh interval, and the component's QueryAsync is called periodically. The method makes the table auto-refresh

In this example, a new piece of data is added every 2 seconds and a maximum of 10 pieces of data are maintained

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This example controls whether to automatically update by setting a variable

Demo

Enable/disable automatic update function by clicking the button
IsAutoRefresh The current value:False

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@page "/tables/autorefresh"

<h3>@Localizer["H1"]</h3>
<h4>@Localizer["H2"]</h4>

<DemoBlock Title="@Localizer["P1"]" Introduction="@Localizer["P2"]" Name="AutoRefresh">
    <p>@((MarkupString)Localizer["P3"].Value)</p>
    <p>@((MarkupString)Localizer["P4"].Value)</p>
    <Table TItem="Foo"
           IsPagination="true" PageItemsSource="@(new int[] { 2, 4 })"
           IsStriped="true" IsBordered="true" IsMultipleSelect="true"
           IsAutoRefresh="true" AutoRefreshInterval="2000"
           OnQueryAsync="@OnAutoQueryAsync">
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" />
            <TableColumn @bind-Field="@context.Name" Width="100" />
            <TableColumn @bind-Field="@context.Address" />
            <TableColumn @bind-Field="@context.Count" />
            <TableColumn @bind-Field="@context.Complete" />
        </TableColumns>
    </Table>
</DemoBlock>

<DemoBlock Title="@Localizer["P5"]" Introduction="@Localizer["P6"]" Name="Control">
    <p>
        <div>@Localizer["P7"]</div>
        <Button Text="@Localizer["P8"]" OnClick="@ToggleAuto" /> <span><code>IsAutoRefresh</code> @Localizer["P9"]:<code>@IsAutoRefresh</code></span>
    </p>
    <Table TItem="Foo"
           IsPagination="true" PageItemsSource="@(new int[] { 2, 4 })"
           IsStriped="true" IsBordered="true" IsMultipleSelect="true"
           IsAutoRefresh="@IsAutoRefresh" AutoRefreshInterval="2000"
           OnQueryAsync="@OnManualQueryAsync">
        <TableColumns>
            <TableColumn @bind-Field="@context.DateTime" Width="180" />
            <TableColumn @bind-Field="@context.Name" Width="100" />
            <TableColumn @bind-Field="@context.Address" />
            <TableColumn @bind-Field="@context.Count" />
            <TableColumn @bind-Field="@context.Complete" />
        </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/

namespace BootstrapBlazor.Shared.Samples.Table;

/// <summary>
/// 
/// </summary>
public partial class TablesAutoRefresh
{
    private static readonly Random random = new();

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

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

    private List<Foo> AutoItems { get; set; } = new List<Foo>();

    private List<Foo> ManualItems { get; set; } = new List<Foo>();

    private bool IsAutoRefresh { get; set; }

    private void ToggleAuto() => IsAutoRefresh = !IsAutoRefresh;

    private Task<QueryData<Foo>> OnAutoQueryAsync(QueryPageOptions options) => GenerateFoos(options, AutoItems);

    private Task<QueryData<Foo>> OnManualQueryAsync(QueryPageOptions options) => GenerateFoos(options, ManualItems);

    private Task<QueryData<Foo>> GenerateFoos(QueryPageOptions options, List<Foo> foos)
    {
        // 设置记录总数
        var total = foos.Count;
        var foo = Foo.Generate(LocalizerFoo);
        foo.Id = total++;
        foo.Name = LocalizerFoo["Foo.Name", total.ToString("D4")];
        foo.Address = LocalizerFoo["Foo.Address", $"{random.Next(1000, 2000)}"];

        foos.Insert(0, foo);

        if (foos.Count > 10)
        {
            foos.RemoveRange(10, 1);
            total = 10;
        }

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

        return Task.FromResult(new QueryData<Foo>()
        {
            Items = items,
            TotalCount = total
        });
    }
}

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Bootstrap Blazor Component library updated to 7.0.8-beta05

Bootstrap Blazor at present has more than 120 components. This component is based on Bootstrap Blazor An enterprise-level component library that provides several types of common components such as layout, navigation, form, data, notification, icon, voice, etc. Each component has been carefully designed with modularity, responsiveness and excellent performance. Starting from more practical scenarios, meeting the needs of various scenarios, greatly reducing the time cost of developers, greatly shortening the development cycle, greatly improving development efficiency, and providing a set of General Rights Management System Example project。Bootstrap Blazor Products are maintained by a professional full-time technical team, with efficient response speed, diversified solutions, long-term support, and enterprise-level support. At present, it has been used in many well-known state-owned enterprises, and the project is running stably with a maximum of 1200 people online. On the right is the QR code of the Chinese Blazor QQ community with the largest number of people in China, welcome to scan and join the group.

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