// 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 BootstrapBlazor.Components;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace BootstrapBlazor.Shared.Components
{
    /// <summary>
    /// 
    /// </summary>
    public partial class CustomerSelectDialog
    {
        private IEnumerable<SelectedItem>? Items2;
        private readonly IEnumerable<SelectedItem> Items3 = new SelectedItem[]
        {
            new SelectedItem ("", "请选择 ..."),
            new SelectedItem ("Beijing", "北京"),
            new SelectedItem ("Shanghai", "上海")
        };

        /// <summary>
        /// 级联绑定菜单
        /// </summary>
        /// <param name="item"></param>
        private async Task OnCascadeBindSelectClick(SelectedItem item)
        {
            // 模拟异步通讯获取数据
            await Task.Delay(100);
            if (item.Value == "Beijing")
            {
                Items2 = new SelectedItem[]
                {
                    new SelectedItem("1","朝阳区"),
                    new SelectedItem("2","海淀区"),
                };
            }
            else if (item.Value == "Shanghai")
            {
                Items2 = new SelectedItem[]
                {
                    new SelectedItem("1","静安区"),
                    new SelectedItem("2","黄浦区"),
                };
            }
            else
            {
                Items2 = Enumerable.Empty<SelectedItem>();
            }
            StateHasChanged();
        }
    }
}
