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Commonly used for large data sheet maintenance

Get data collection through OnQueryAsync callback


When using the List<TItem> generic collection as a data source, you need to follow the steps below to set

1. Set the data source
Set the Items property of the Table component or the OnQueryAsync callback delegate method

protected override void OnInitialized()

    Items = Foo.GenerateFoo(Localizer);

2. Handle the new logic
Set the OnAddAsync callback delegate function to handle the New logic

private Task<Foo> OnAddAsync()
    // The code here is sample code
    var foo = new Foo() { DateTime = DateTime.Now, Address = $"custom address {DateTime.Now.Second}" };
    Items.Insert(0, foo);

    // output log information
    Trace.Log($"Collection value change notification column: {Items.Count} - Type: Add");
    return Task.FromResult(foo);

3. Handle delete logic
Set the OnDeleteAsync callback delegate function to handle the delete logic

private Task<bool> OnDeleteAsync(IEnumerable<Foo> items)
    // The code here is sample code
    Items.RemoveAll(i => items.Contains(i));

    // output log information
    Trace.Log($"Collection value change notification column: {Items.Count} - Type: Delete");
    return Task.FromResult(true);

4. Handle the update logic
Set the OnSaveAsync callback delegate function to handle the cell update logic
After all cells in the component are edited and updated, the OnSaveAsync callback delegate will be automatically triggered, and the parameter is the current update model TItem

private Task<bool> OnDeleteAsync(Foo item, ItemChangedType changedType)
    // The code here is sample code
    Trace.Log($"Cell Change Notification Class: Foo - value: cell");
    return Task.FromResult(true);

Advanced usage

  • IsFixedHeader fixed header height is set to Height='500px'
  • Name is not editable display avatar

B station related video link


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Bootstrap Blazor Component library updated to 7.4.4-beta01

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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