Optimise/Tailor inputs for screen reader users

Retrying 'FindPackagesByIdAsyncCore' for source 'https://nuget.telerik.com/nuget/FindPackagesById()?id='runtime.native.System.Net.Http'&semVerLevel=2.0.0'.
Response status code does not indicate success: 500 (Internal Server Error).
  GET https://nuget.telerik.com/nuget/FindPackagesById()?id='runtime.native.System.Net.Http'&semVerLevel=2.0.0
  InternalServerError https://nuget.telerik.com/nuget/FindPackagesById()?id='Microsoft.Extensions.Hosting.Abstractions'&semVerLevel=2.0.0 290ms
  InternalServerError https://nuget.telerik.com/nuget/FindPackagesById()?id='Telerik.UI.for.Blazor'&semVerLevel=2.0.0 401ms
  InternalServerError https://nuget.telerik.com/nuget/FindPackagesById()?id='System.ServiceModel.Primitives'&semVerLevel=2.0.0 401ms
##[error]The nuget command failed with exit code(1) and error(Failed to retrieve information about 'Telerik.UI.for.Blazor' from remote source 'https://nuget.telerik.com/nuget/FindPackagesById()?id='Telerik.UI.for.Blazor'&semVerLevel=2.0.0'.
  Response status code does not indicate success: 500 (Internal Server Error).

@page "/districts"
@using MVC.Services
@using MVC.Models
@using System.ComponentModel.DataAnnotations
@inject IDistrictService DistrictService
<h3>Districts</h3>
<TelerikGrid Data="@district" Sortable="true" EditMode="@GridEditMode.Incell"
             Height="500px"
             Pageable="true" PageSize=@PageSize
             OnUpdate=@UpdateItem OnDelete=@DeleteItem OnCreate=@CreateItem OnCancel="@OnCancelHandler">
    <GridToolBar>
        <GridCommandButton Command="Add" Icon="add">Add District</GridCommandButton>
    </GridToolBar>
    <GridColumns>
        <GridColumn Field="@(nameof(District.Id))" Editable="false" />
        <GridColumn Field="@(nameof(District.Description))" Title="Description" />
        <GridColumn Field="@(nameof(District.EnableApprovalWorkflow))" Title="Enable Approval Workflow" />
        <GridCommandColumn>
            <GridCommandButton Command="Delete" Icon="delete">Delete</GridCommandButton>
        </GridCommandColumn>
    </GridColumns>
</TelerikGrid>
@code {
    int PageSize = 15;
    IEnumerable<District> district;

    protected override async Task OnInitializedAsync()
    {
        await GetGridData();
    }
    async Task GetGridData()
    {
        district = await DistrictService.DistrictList();
    }
    async Task CreateItem(GridCommandEventArgs args)
    {
        District item = (District)args.Item;
        await DistrictService.DistrictInsert(item);
        await GetGridData();
    }

    void OnCancelHandler(GridCommandEventArgs args)
    {
        District item = (District)args.Item;
    }

    async Task DeleteItem(GridCommandEventArgs args)
    {
        District item = (District)args.Item;
        await DistrictService.DistrictDelete(item.Id);
        await GetGridData();
    }

    async Task UpdateItem(GridCommandEventArgs args)
    {
        District item = (District)args.Item;
        await DistrictService.DistrictUpdate(item);
        await GetGridData();
    }
}

using Dapper;
using Microsoft.Data.SqlClient;
using MVC.Models;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MVC.Services
{
    public class DistrictService : IDistrictService
    {
        private readonly SqlConnectionConfiguration _configuration;
        public DistrictService(SqlConnectionConfiguration configuration)
        {
            _configuration = configuration;
        }
        public async Task<bool> DistrictInsert(District district)
        {
            using (var conn = new SqlConnection(_configuration.Value))
            {
                var parameters = new DynamicParameters();
                parameters.Add("Description", district.Description, DbType.String);
                parameters.Add("EnableApprovalWorkflow", district.EnableApprovalWorkflow, DbType.Boolean);
                await conn.ExecuteAsync("spLookupDistrict_Insert", parameters, commandType: CommandType.StoredProcedure);
            }
            return true;
        }
        public async Task<IEnumerable<District>> DistrictList()
        {
            IEnumerable<District> districts;
            using (var conn = new SqlConnection(_configuration.Value))
            {
                districts = await conn.QueryAsync<District>("spLookupDistrict_List", commandType: CommandType.StoredProcedure);
            }
            return districts;
        }
        public async Task<IEnumerable<District>> DistrictSearch(string @Param)
        {
            var parameters = new DynamicParameters();
            parameters.Add("@Param", Param, DbType.String);
            IEnumerable<District> districts;
            using (var conn = new SqlConnection(_configuration.Value))
            {
                districts = await conn.QueryAsync<District>("spLookupDistrict_Search", parameters, commandType: CommandType.StoredProcedure);
            }
            return districts;
        }
        public async Task<District> District_GetOne(int @Id)
        {
            District district = new District();
            var parameters = new DynamicParameters();
            parameters.Add("@Id", Id, DbType.Int32);
            using (var conn = new SqlConnection(_configuration.Value))
            {
                district = await conn.QueryFirstOrDefaultAsync<District>("spLookupDistrict_GetOne", parameters, commandType: CommandType.StoredProcedure);
            }
            return district;
        }
        public async Task<bool> DistrictUpdate(District district)
        {
            using (var conn = new SqlConnection(_configuration.Value))
            {
                var parameters = new DynamicParameters();
                parameters.Add("Id", district.Id, DbType.Int32);

                parameters.Add("Description", district.Description, DbType.String);
                parameters.Add("EnableApprovalWorkflow", district.EnableApprovalWorkflow, DbType.Boolean);

                await conn.ExecuteAsync("spLookupDistrict_Update", parameters, commandType: CommandType.StoredProcedure);
            }
            return true;
        }
        public async Task<bool> DistrictDelete(int Id)
        {
            var parameters = new DynamicParameters();
            parameters.Add("@Id", Id, DbType.Int32);
            using (var conn = new SqlConnection(_configuration.Value))
            {
                await conn.ExecuteAsync("spLookupDistrict_Delete", parameters, commandType: CommandType.StoredProcedure);
            }
            return true;
        }
    }
}

@inject IJSRuntime _js

Notes:<br />
- Move this script to a proper place, it is hacked into the component to make this snippet short
- Make sure the ID is unique if you use IDs. THere are other selectors you can use (such as classes, or you can even cascade your selectors to make them more specific)
<br /><br />

<script suppress-error="BL9992">
    function focusElement(selector) {
        var elem = document.querySelector(selector);
        if (elem && elem.focus) {
            setTimeout(function () {
                elem.focus();
            }, 30);
        }
    }
</script>

<TelerikButton OnClick="@FocusBtn">Focus the other button</TelerikButton>

<br /><br />

<TelerikButton Id="@btnId" OnClick="@SpecialBtnAction">I will be focused programmatically</TelerikButton>

@code{
    string btnId = "my-special-btn";

    async Task FocusBtn()
    {
        await _js.InvokeVoidAsync("focusElement", $"#{btnId}");
    }

    async Task SpecialBtnAction()
    {
        Console.WriteLine("special button clicked");
    }
}