Blazor.WebForm.Components

ASP.NET Web Forms System.Web.UI.WebControls Razor Components For Blazor WebAssembly, Blazor Hybrid, Blazor Server.

Demo: https://blazorwebformdemo.github.io/

@using System.Web.UI
@using System.Web.UI.WebControls
@page "/fetchdata-gridview"
@inherits ControlComponent
@inject HttpClient Http

<div>
    <h1>Weather forecast (GridView)</h1>
    <asp.Button Text="Load Data" OnClick="this.Button_Click"></asp.Button>
    <hr />
    <asp.Label @ref="this.label"></asp.Label>
    <br />
    <asp.GridView @ref="this.gridview" AutoGenerateColumns="false" CssClass="table" AllowPaging="true"
                  PageSize="2" OnPageIndexChanging="this.GridView_PageIndexChanging">
        <Columns>
            <asp.BoundField HeaderText="Date" DataField="Date" DataFormatString="{0:yyyy/M/d}"></asp.BoundField>
            <asp.BoundField HeaderText="Temp. (C)" DataField="TemperatureC"></asp.BoundField>
            <asp.BoundField HeaderText="Temp. (F)" DataField="TemperatureF"></asp.BoundField>
            <asp.BoundField HeaderText="Summary" DataField="Summary"></asp.BoundField>
        </Columns>
    </asp.GridView>
</div>

@code {
    private WeatherForecast[] forecasts;
    private Label label;
    private GridView gridview;

    protected async void Button_Click(object sender, EventArgs e)
    {
        forecasts = await Http.GetFromJsonAsync<WeatherForecast[]>("sample-data/weather.json");

        label.Text = DateTime.Now.ToString();

        gridview.PageIndex = 0;
        gridview.DataSource = forecasts;
        gridview.DataBind();

        this.RequestRefresh();
    }

    protected void GridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        gridview.PageIndex = e.NewPageIndex;
        gridview.DataBind();
    }

    public class WeatherForecast
    {
        public DateTime Date { get; set; }

        public int TemperatureC { get; set; }

        public string Summary { get; set; }

        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
    }
}

Standard Toolbox
BulletedList	DropDownList	ImageMap	MultiView	TextBox
Button	FileUpload	Label	Panel	Wizard
Calendar	HiddenField	LinkButton	PlaceHolder
CheckBox	HyperLink	ListBox	RadioButton
CheckBoxList	Image	Literal	RadioButtonList
ComboBox	ImageButton	Localize	Table

Data Toolbox
DataList	ListView
DataPager	Repeater
DetailsView
FormView
GridView

Validation Toolbox
CompareValidator	ValidationSummary
CustomValidator
RangeValidator
RegularExpressionValidator
RequiredFieldValidator

Blazor Server

Add CircuitHandler service to Program.cs

builder.Services.AddScoped<CircuitHandler, ScriptManagerCircuitHandler>();

using Microsoft.AspNetCore.Components.Server.Circuits;
using System.Web.Hosting;

namespace Server
{
    public class ScriptManagerCircuitHandler : CircuitHandler
    {
        private readonly IServiceProvider _serviceProvider;

        public ScriptManagerCircuitHandler(IServiceProvider serviceProvider)
        {
            _serviceProvider = serviceProvider;
        }

        public override Task OnCircuitOpenedAsync(Circuit circuit, CancellationToken cancellationToken)
        {
            ScriptManagerHost.AddScoped(_serviceProvider);
            return base.OnCircuitOpenedAsync(circuit, cancellationToken);
        }

        public override Task OnCircuitClosedAsync(Circuit circuit, CancellationToken cancellationToken)
        {
            ScriptManagerHost.RemoveScoped(_serviceProvider);
            return base.OnCircuitClosedAsync(circuit, cancellationToken);
        }
    }
}